2015
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Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
Thermally Protected Varistors | 1
World Products Inc. TVZ series is a two or three-leaded
Thermally Protected Metal Oxide Varistor
One lead of the TVZ varistor is connected to a thermal link which is designed to open when the varistor is under sustained
abnormal over-voltage conditions. The TVZ series is designed to meet the abnormal over-voltage requirements of UL 1449 3rd
edition, Section 39.4.
Traditional Metal Oxide Varistors were originally designed to protect equipment from surges at the specied rated voltage, but
Metal Oxide Varistors may fail to a short-circuit condition or fail to open when subjected to a sustained steady-state overvoltage
above it’s rated specication. The TVZ has a thermal link integrated with an MOV disk that responds to the MOV temperature and
disconnects the MOV from the line, should the temperature or voltage exceed a certain level.
World Products Inc. three-leaded surge protective component is designed to be connected, via the monitor lead, to an indicator
(such as an LED) to provide diagnostic features indicating if the MOV is disconnected from the circuit in the event the thermal link
element opens.
As a result of the integration of the thermal link attached to the MOV disc, Thermally Protected Varistors provide an instant
response to unexpected over-voltage situations. World Products Inc. Thermally Protected Varistors offer protection to sensitive
downstream electric components.
Additionally, TVZ varistors are wave solderable which simplies end product assembly by reducing the expense and rework
associated with hand soldering operations.
CAUTION: Thermally Protected Varistors are intended, in conjunction with appropriate enclosure design, to help facilitate
SPD module compliance to UL 1449. Under extreme abnormal over-voltage conditions, some units will exhibit substantial
heating, arcing and venting prior to opening. Modules must be designed to contain this possibility. Application testing is strongly
recommended.
Proper design of surge protective devices (SPD’s) require that they meet new UL1449 3rd Edition requirements for
abnormal over-voltage limited current. Fuses that are meant to protect the system for large fault currents do not address
the need to protect against low fault currents. These low fault currents can result in catastrophic failure prior to tripping
the higher current fuse. TVZ series varistors can meet the needs of the SPD designer, avoiding having to create a
complicated/high cost approach.
The thermal link in a thermally protected varistor should never be used in series with the load. It is only used to provide
protection to the varistor portion in case of an abnormal over voltage condition.
When considering “potting materials” being used in conjunction with TVZ, please contact World Products Inc. for
guidelines as “potting” may affect TVZ performance characteristics.
Table of Contents
Features .................................................................................... 2
Applications ................................................................................. 2
Approvals .................................................................................. 2
Part Marking ................................................................................ 3
Part Number System .......................................................................... 4
Absolute Maximum Ratings .................................................................... 4
Fuse Conguration and Dimensions .............................................................. 5
Specications ............................................................................... 12
Thermal Characteristics & Soldering Prole ........................................................ 22
V-I Characteristics ............................................................................ 24
Taping Specications ......................................................................... 26
Standard Bulk Packaging ...................................................................... 28
Carton Size of Bulk Packaging .................................................................. 28
Applications ................................................................................. 29
AC Line Application Examples .................................................................. 29
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
2 | Thermally Protected Varistors
*** with the exception of 120 VAC rated part.
****Metal Oxide Varistors and Thermally Protected Varistors will not be recognized to UL1414 from December 25, 2013.
SINCERA
T25D271K
611
SINCERA
T20EB271K
611
SINCERA
T18EC271K
611
Approvals
APPROVALS 14mm 18mm 20mm 25mm
(Round Type)
25mm
(Rectangular Type) 34mm
UL and CUL 1449
Third Edition (includes UL60691)
File #E321567
RoHS Series
ALL VALUES
Non-RoHS and
RoHS Type
Series 115VAC
through 420VAC
RoHS Series
ALL VALUES
(1) RoHS Series 120VAC
through 420 VAC
(2) Standard
(non-RoHS) Series 130
VAC through 195 VAC
RoHS Series
ALL VALUES
RoHS Series
ALL VALUES
UL and CUL1414****
File #E71602
Non-RoHS &
RoHS Series
Non-RoHS &
RoHS Series
Non-RoHS &
RoHS Series
Non-RoHS &
RoHS Series*** N/A Non-RoHS &
RoHS Series
VDE
File #40037747
RoHS Series ALL VALUES
QC 42201 - C002:2012-02
QC 42201 - A002:2012-02
IEC 60950-1: 2005 Annex Q
IECQ-C BSI 12.001
IEC 61051-2 1991-01
IEC 61051-1 2007-04
IEC 61051-2-2 1991-01
CB SCHEME
Certificate Number C580610
Features
• RoHS compliant types available
• UL1449, UL1414 and CUL recognition or pending status.
• Patented product (U.S. Patent #6636403 and IE010410).
• Low Leakage Current under normal operating voltage.
• UL1449 3rd edition abnormal over-voltage test
(10A, 5A, 2.5A, 0.5A and 0.125A) recognition pending.
• Wave solderable.
• Maximum Voltage-Temperature Coefcient <-0.01%/ºC.
• High Surge Current Rating up to 40kA.
• -55°C to +85°C Operating Temperature Range.
• -55ºC to +125ºC Storage Temperature.
• Three leaded versions available, with fuses located on
either the third or second lead.
• ISO and TS16949 certication.
Applications
• Transient Voltage Surge Suppressor (TVSS) Products
• AC Panel Protection Modules
• AC Line Power Supplies
• Surge Protected Strip
• AC Power Meters
• Uninterruptable Power Supply
• White Goods
• Inverters
• DIN Rail
• AC/DC Power Supplies
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
Thermally Protected Varistors | 3
Part Marking
T 14 EB N 241 K
(1) (2) (3) (4) (5) (6)
(1) T = TVZ Series
(2) Disc Diameter
14 = 14mm
18 = 18mm
20 = 20mm
25 = 25mm (available in both round and rectangle types)
34 = 34mm
(3) Type
DB = 25mm Disc Size (Two Leads)
D = 25mm Disc Size (Three Leads)
EB = 14mm, 18mm & 20mm Disc Size (Two Leads)
EC = 14mm, 18mm & 20mm Disc Sizes (Three Leads)
RB = 25mm (rectangle type), 34mm Disc Size (Two Leads)
RC = 25mm (rectangle type), 34mm Disc Size (Three Leads)
(4) N = RoHs Compliant Series
(5) Varistor Voltage
241 = 24 x 101 = 240
(6) Tolerance
K = ±10%
Date Code
440 = First digit represents year (4 = 2014).
Second and third digits represent the week of the year.
NOTE: Parts will be marked SINCERA. (This is the brand name.)
SINCERA
T14EB241K
440
Date Code
SINCERA
T14EBN241K
440
Date Code
RoHS
Compliant “N”
Standard Version
RoHS Compliant Version
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
4 | Thermally Protected Varistors
Part Number System
TVZ 20 E B N 241 K B S
(1) (2) (3) (4) (5) (6) (7) (8) (9)
(1) Thermally Protected Varistor
(2) Diameter
14: 14mm
18: 18mm
20: 20mm
25: 25mm (available in round and rectangular type)
34: 34mm
(3) Energy Rating
D: 25mm (round type)
E: 14mm, 18mm & 20mm
R: 25mm (rectangular type), 34mm
(4) Fuse Location
Blank: 3-Leaded, Thermal Link Located on Third Lead
(Available in 25mm round type)
B: 2-Leaded, No Monitor Lead
Available in 14mm, 18mm, 20mm, 25mm & 34mm
(both round and rectangular type)
C: 3-Leaded, Thermal Link Located on Second Lead
(Available in 14mm, 18mm, 20mm (round type), and
25mm & 34mm (rectangle type)
(5) N: RoHS Compliant Series
(6) Varistor Voltage/AC Voltage
Varistor Voltage for 14, 18, 20, & 25mm,
201 = 20 x 101 = 200VDC
AC Voltage for 34mm, 151 = 150VAC
(7) Tolerance
K: ±10%
(8) Packaging
B: Bulk
For taped and lead conguration of taped parts,
see taping specications for sufx codes.
(9) Lead Configuration for Bulk Parts Only
S: For 34mm series denotes Standard Lead.
S: Straight (For varistor voltage ≤681K), and in-line
crimped (for varistor voltage >681K) for 14, 18, 20 &
25mm series.
O: Outward crimp
I: Inward crimp
L: In-line crimped (For varistor voltage ≤681K) for 14,
18, 20 & 25mm series.
N: Varistor voltage >681 come standard with in-line
crimp (see illustration below) for straight disc seating
on PC boards. If straight leads are required instead of
in-line crimp please use code “N” in this position, for
14, 18, 20 & 25 mm series.
(10) Suffix for Custom Types
X33: Alternative Design with 3mm Monitor Terminal
(34mm only). See Fuse Conguration & Dimensions
for 34mm for more information.
In-line Crimp (3 leaded type)*
3mm max.
In-line Crimp (2 leaded type)
Absolute Maximum Ratings***
Continuous RMS Current (Monitor Lead) 100mA
Typical Response Time <15n seconds
Insulation Resistance >1000MΩ
Hi-Pot Encapsulation 2500 VDC
Maximum Voltage-Temperature Coefcient <0.01%/°C
Operating Temperature Range -55°C to 85°C
Storage Temperature Range -55°C to 125°C
Isolation Capability
(when thermal element is open) 600VAC
NOTES:
*For 3 leaded 14mm, 18mm, and 20mm types with in-line crimp
monitor lead is straight. For 25mm round and rectangular types
monitor lead is in-line crimped.
**25mm (rectangle type) 3-leaded version has fuse located on the
third lead (same as 25mm round type).
***Stresses above those stated in Absolute Maximum Ratings
may cause permanent damage to the device. These are stress only
ratings and operation of the device at these or any other conditions
exceeding these ratings is not implied.
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
Thermally Protected Varistors | 5
Thermal Link Configuration and Dimensions
14mm, 18mm
2-Leaded
Unit: mm (inch)
Varistor Type
14mm 18mm
T max W1 max. T max W1 max.
181K 8.5 (0.34) 3.4 (0.13) 8.5 (0.34) 3.4 (0.13)
201K 8.5 (0.34) 3.5 (0.14) 8.5 (0.34) 3.5 (0.14)
221K 8.5 (0.34) 3.6 (0.14) 8.5 (0.34) 3.6 (0.14)
241K 8.5 (0.34) 3.7 (0.15) 8.5 (0.34) 3.7 (0.15)
271K 9.0 (0.36) 3.8 (0.15) 9.0 (0.36) 3.8 (0.15)
311K 9.0 (0.36) 4.2 (0.17) 9.0 (0.36) 4.2 (0.17)
331K 9.0 (0.36) 4.2 (0.17)
361K 9.5 (0.38) 4.3 (0.17) 9.5 (0.38) 4.3 (0.17)
391K 9.5 (0.38) 4.5 (0.18) 9.5 (0.38) 4.5 (0.18)
431K 9.5 (0.38) 4.7 (0.19) 9.5 (0.38) 4.7 (0.19)
471K 9.5 (0.38) 4.9 (0.19) 9.5 (0.38) 4.9 (0.19)
511K 10.5 (0.42) 5.2 (0.20) 10.5 (0.42) 5.2 (0.20)
561K 10.5 (0.42) 5.4 (0.21) 10.5 (0.42) 5.4 (0.21)
621K 10.5 (0.42) 5.7 (0.22) 10.5 (0.42) 5.7 (0.22)
681K 11.0 (0.44) *6.0 (0.24) 11.0 (0.44) *6.0 (0.24)
751K 11.0 (0.44) *6.4 (0.25)
821K 12.0 (0.48) *6.8 (0.27)
911K 12.0 (0.48) *7.2 (0.28)
951K 12.0 (0.48) *7.8 (0.31)
102K 13.0 (0.52) *7.8 (0.31)
122K 13.0 (0.52) *9.0 (0.35)
Series Size D max H max dø nom. a
TVZ14 14mm 17.5 (0.69) 22.0 (0.87) 0.8 (0.03) 7. 5 (0.30)
± 1.0 (0.039)
TVZ18 18mm 21.0 (0.83) 26.0 (1.02) 0.8 (0.031) for 181-681K
1.0 (0.039) for 751-122K
7.5 (0.30)
± 1.0 (0.039)
3mm max.
In-line Crimp (2 leaded type)
Note: *Bulk parts form >681 varistor voltage come
standard with in-line crimp (see illustration below)
for straight disk seating on PC boards. Therefore,
W1 dimensions are not applicable. If required with-
out in-line crimp, please reference “Part Number
System” and add “N”.
dø
a
W1 max.
T max.
SINCERA
T14EB271K
440
D max.
H max.
25(0.98)
min.
MOV
TF
(Thermal Fuse Element)
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
6 | Thermally Protected Varistors
Thermal Link Configuration and Dimensions (continued)
20mm
2-Leaded
Unit: mm (inch)
Varistor Type
20mm
T max W1 max.
181K 8.5 (0.34) 3.4 (0.13)
201K 8.5 (0.34) 3.6 (0.14)
221K 8.5 (0.34) 3.7 (0.15)
241K 8.5 (0.34) 3.8 (0.15)
271K 9.0 (0.36) 3.9 (0.15)
301K
311K 9.0 (0.36) 4.3 (0.17)
331K 9.0 (0.36) 4.3 (0.17)
361K 9.5 (0.38) 4.4 (0.17)
391K 9.5 (0.38) 4.6 (0.18)
431K 9.5 (0.38) 4.8 (0.19)
471K 9.5 (0.38) 5.1 (0.20)
511K 10.5 (0.42) 5.4 (0.21)
561K 10.5 (0.42) 5.7 (0.22)
621K 10.5 (0.42) 5.9 (0.23)
681K 11.0 (0.44) *6.2 (0.24)
751K 11.0 (0.44) *6.6 (0.26)
781K 11.0 (0.44) *6.8 (0.27)
821K 12.0 (0.48) *7.0 (0.28)
911K 12.0 (0.48) *7.5 (0.30)
951K 12.0 (0.48) *8.0 (0.31)
102K 13.0 (0.52) *8.0 (0.31)
112K 13.0 (0.52) 8.2 (0.32)
122K 13.0 (0.52) *8.3 (0.33)
Series Size D max H max dø nom. a
TVZ20 20mm 23.0 (0.90) 30.0 (1.18) 0.8 (0.031) for 181 - 681K,
1.0 (0.039) for 751K - 122K
7.5 (0.30)
± 1.0 (0.039)
dø
a
W1 max.
T max.
SINCERA
T20EB271K
440
D max.
H max.
20.0 (0.78)
min.
MOV
TF
(Thermal Fuse Element)
3mm max.
In-line Crimp (2 leaded type)
Note: *Bulk parts for >681 varistor voltage come
standard with in-line crimp (see illustration below)
for straight disk seating on PC boards. Therefore,
W1 dimensions are not applicable. If required with-
out in-line crimp, please reference “Part Number
System” and add “N”.
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
Thermally Protected Varistors | 7
Thermal Link Configuration and Dimensions (continued)
25mm (Round Type)
2-Leaded
Unit: mm (inch)
Varistor Type
25mm
T max W1 max.
181K 7.7 (0.3) 3.6 (0.14)
201K 7.9 (0.31) 3.7 (0.15)
221K 8.2 (0.32) 3.8 (0.15)
241K 8.3 (0.33) 3.9 (0.15)
271K 8.4 (0.33) 4.0 (0.16)
301K 8.6 (0.34) 4.2 (0.17)
331K 8.8 (0.35) 4.4 (0.17)
361K 8.9 (0.35) 4.5 (0.18)
391K 9.0 (0.35) 4.7 (0.19)
431K 9.2 (0.36) 4.9 (0.19)
471K 9.5 (0.37) 5.2 (0.20)
511K 9.9 (0.39) 5.5 (0.22)
561K 10.1 (0.40) 5.7 (0.22)
621K 10.4 (0.41) 6.0 (0.24)
681K 10.7 (0.42) 6.3 (0.25)
751K 11.1 (0.44) *6.7 (0.26)
781K 11.3 (0.44) *6.9 (0.27)
821K 11.4 (0.45) *7.1 (0.28)
911K 11.8 (0.46) *7.6 (0.30)
102K 12.4 (0.49) *8.1 (0.32)
112K 12.6 (0.50) *8.7 (0.34)
122K 12.8 (0.50) *9.1 (0.36)
Series Size D max H max dø nom. a
TVZ25 25mm 28.5 (1.12) 35.5 (1.40) 1.0 (0.039) 19.2 (0.755)
± 1.0 (0.039)
dø
a
W1 max.
T max.
SINCERA
T25DB271K
440
D max.
H max.
20 (0.78)
min.
MOV
TF
(Thermal Fuse Element)
3mm max.
In-line Crimp (2 leaded type)
Note: *Bulk parts for >681 varistor voltage come
standard with in-line crimp (see illustration below)
for straight disk seating on PC boards. Therefore,
W1 dimensions are not applicable. If required with-
out in-line crimp, please reference “Part Number
System” and add “N”.
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
8 | Thermally Protected Varistors
Thermal Link Configuration and Dimensions (continued)
25mm (Rectangular Type)
2-Leaded
Unit: mm (inch)
Varistor Type
25mm (Rectangular Type)
T max W1 max.
181K 10.2 (0.40) 5.3 (0.21)
201K 10.4 (0.41) 5.3 (0.21)
221K 10.6 (0.42) 5.3 (0.21)
241K 10.7 (0.42) 5.3 (0.21)
271K 10.8 (0.43) 5.2 (0.21)
301K 10.9 (0.43) 6.4 (0.25)
331K 10.9 (0.43) 6.4 (0.25)
361K 11.1 (0.44) 6.4 (0.25)
391K 11.2 (0.44) 6.4 (0.25)
431K 11.4 (0.45) 6.4 (0.25)
471K 11.5 (0.45) 6.4 (0.25)
511K 11.8 (0.46) 7.5 (0.30)
561K 12.1 (0.48) 7.5 (0.30)
621K 12.4 (0.49) 7.5 (0.30)
681K 12.7 (0.50) 7.5 (0.30)
751K 12.7 (0.50) *8.5 (0.33)
781K 12.9 (0.51) *8.5 (0.33)
821K 13.1 (0.52) *8.5 (0.33)
911K 13.4 (0.53) *8.5 (0.33)
102K 13.9 (0.55) *8.5 (0.33)
112K 14.4 (0.57) *8.5 (0.33)
122K 14.9 (0.59) *8.5 (0.33)
Series Size D max H max dø nom. a
TVZ25R 25mm 29.0 (1.14) 35.5 (1.40) 1.0 (0.039) 19.2 (0.76)
± 1.0 (0.039)
3mm max.
In-line Crimp (2 leaded type)
Note: *Bulk parts for >681 varistor voltage come
standard with in-line crimp (see illustration below)
for straight disk seating on PC boards. Therefore,
W1 dimensions are not applicable. If required with-
out in-line crimp, please reference “Part Number
System” and add “N”.
MOV
TF
(Thermal Fuse Element)
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
Thermally Protected Varistors | 9
Thermal Link Configuration and Dimensions (continued)
34mm
2-Leaded
Unit: mm
Varistor Type T max (mm) S (mm)
111K 11.9 2.8 ± 0.65
131K 12.2 2.9 ± 0.65
141K 12.3 3.0 ± 0.85
151K 12.4 3.1 ± 0.85
181K 12.8 3.4 ± 0.85
201K 13.0 3.6 ± 0.85
251K 12.8 4.0 ± 0.85
271K 13.0 4.3 ± 0.85
301K 13.3 4.5 ± 1.0
321K 13.5 4.7 ± 1.0
331K 13.6 4.8 ± 1.0
351K 13.8 5.0 ± 1.0
391K 14.2 5.4 ± 1.0
421K 14.5 5.7 ± 1.0
461K 14.8 5.9 ± 1.0
481K 15.0 6.1 ± 1.0
511K 15.4 6.6 ± 1.0
551K 15.6 6.8 ± 1.0
571K 15.9 7.1 ± 1.0
621K 16.4 7.5 ± 1.0
661K 16.9 7.9 ± 1.0
681K 17.2 8.2 ± 1.0
751K 17.8 8.8 ± 1.0
0.51mm ± 0.1 1.4mm ± 0.1
4mm ± 0.5
T
37mm MAX
47.5mm MAX
7.0mm ± 0.1
25.4mm ± 1
S
MOV
TF
(Thermal Fuse Element)
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
10 | Thermally Protected Varistors
Thermal Link Configuration and Dimensions (continued)
14mm, 18mm, 20mm
3-Leaded, Thermal Link Located on Second Lead
Unit: mm (inch)
Varistor
Type
14mm 18mm 20mm
T max W1 max. W2 max. T max W1 max. W2 max. T max W1 max. W2 max.
181K 8.5 (0.34) 1.9 (0.07) 3.4 (0.13) 8.5 (0.34) 1.9 (0.07) 3.4 (0.13) 8.5 (0.34) 1.9 (0.07) 3.4 (0.13)
201K 8.5 (0.34) 2.0 (0.08) 3.5 (0.14) 8.5 (0.34) 2.0 (0.08) 3.5 (0.14) 8.5 (0.34) 2.0 (0.08) 3.6 (0.14)
221K 8.5 (0.34) 2.0 (0.08) 3.6 (0.14) 8.5 (0.34) 2.0 (0.08) 3.6 (0.14) 8.5 (0.34) 2.1 (0.08) 3.7 (0.15)
241K 8.5 (0.34) 2.1 (0.08) 3.7 (0.15) 8.5 (0.34) 2.1 (0.08) 3.7 (0.15) 8.5 (0.34) 2.2 (0.09) 3.8 (0.15)
271K 9.0 (0.36) 2.2 (0.09) 3.8 (0.15) 9.0 (0.36) 2.2 (0.09) 3.8 (0.15) 9.0 (0.36) 2.3 (0.09) 3.9 (0.15)
311K 9.0 (0.36) 2.4 (0.09) 4.0 (0.16) 9.0 (0.36) 2.4 (0.09) 4.0 (0.16) 9.0 (0.36) 2.5 (0.10) 4.1 (0.16)
331K 9.0 (.36) 2.5 (.10) 4.2 (0.17) 9.0 (0.36) 2.5 (0.10) 4.3 (0.17)
361K 9.5 (0.38) 2.7 (0.11) 4.3 (0.17) 9.5 (0.38) 2.7 (0.11) 4.3 (0.17) 9.5 (0.38) 2.8 (0.11) 4.4 (0.17)
391K 9.5 (0.38) 2.9 (0.11) 4.5 (0.18) 9.5 (0.38) 2.9 (0.11) 4.5 (0.18) 9.5 (0.38) 3.0 (0.12) 4.6 (0.18)
431K 9.5 (0.38) 3.0 (0.12) 4.7 (0.19) 9.5 (0.38) 3.0 (0.12) 4.7 (0.19) 9.5 (0.38) 3.2 (0.13) 4.8 (0.19)
471K 9.5 (0.38) 3.2 (0.13) 4.9 (0.19) 9.5 (0.38) 3.2 (0.13) 4.9 (0.19) 9.5 (0.38) 3.4 (0.13) 5.1 (0.20)
511K 10.5 (0.42) 3.4 (0.13) 5.2 (0.20) 10.5 (0.42) 3.4 (0.13) 5.2 (0.20) 10.5 (0.42) 3.6 (0.14) 5.4 (0.21)
561K 10.5 (0.42) 3.7 (0.15) 5.4 (0.21) 10.5 (0.42) 3.7 (0.15) 5.4 (0.21) 10.5 (0.42) 3.7 (0.15) 5.7 (0.22)
621K 10.5 (0.42) 3.9 (0.15) 5.7 (0.22) 10.5 (0.42) 3.9 (0.15) 5.7 (0.22) 10.5 (0.42) 4.1 (0.16) 5.9 (0.23)
681K 11.0 (0.44) *4.2 (0.17) *6.0 (0.24) 11.0 (0.44) *4.2 (0.17) *6.0 (0.24) 11.0 (0.44) *4.4 (0.17) *6.2 (0.24)
751K 11.0 (0.44) *4.5 (0.18) *6.4 (0.25) 11.0 (0.44) *4.7 (0.19) *6.6 (0.26)
781K *11.0 (0.44) *4.7 (0.19) *6.8 (0.27)
821K 12.0 (0.48) *4.9 (0.19) *6.8 (0.27) 12.0 (0.48) *5.1 (0.20) *7.0 (0.28)
911K 12.0 (0.48) *5.3 (0.21) *7.2 (0.28) 12.0 (0.48) *5.5 (0.22) *7.5 (0.30)
951K 12.0 (0.48) *5.5 (0.22) *7.5 (0.30) 12.0 (0.48) *5.5 (0.22) *7.8 (0.31)
102K 13.0 (0.52) *5.7 (0.22) *7.8 (0.31) 13.0 (0.52) *5.5 (0.22) *8.1 (0.32)
112K 13.0 (0.52) 13.0 (0.52) *6.0 (0.24) *8.5 (0.33)
122K 13.0 (0.52) *6.9 (0.27) *8.8 (0.35) 13.0 (0.52) *7.0 (0.27) *9.0 (0.35)
Series Size D max H max dø nom. a b
TVZ14 14mm 17.5 (0.69) 22.0 (0.87) 0.8 (0.03) 7.5 (0.30)
± 1.0 (0.039)
5.0 (0.20)
± 1.0 (0.039)
TVZ18 18mm 21.0 (0.83) 26.0 (1.02) 0.8 (0.031) for 181-681K
1.0 (0.039) for 751-122K
7.5 (0.30)
± 1.0 (0.039)
5.0 (0.20)
± 1.0 (0.039)
TVZ20 20mm 23.0 (0.90) 30.0 (1.18) 0.8 (0.031) for 181-681K
1.0 (0.039) for 751-122K
7.5 (0.30)
± 1.0 (0.039)
5.0 (0.20)
± 1.0 (0.039)
In-line Crimp (3 leaded type)*
Note: *Bulk parts for >681 varistor voltage come
standard with in-line crimp (see illustration below)
for straight disk seating on PC boards. Therefore,
W1 & W2 dimensions are not applicable. If required
without in-line crimp, please reference “Part Num-
ber System” and add “N”.
3 (Monitor Lead)
MOV
1
TF
2 (Thermal Fuse Element)
W1 max.
SINCERA
T18EC271K
611
D max.
dø
ab
H max.
6.0
(0.236)
min.
25(0.98)
min.
T max.
W2 max.
3
1
2
*NOTE: For 3 leaded 14mm, 18mm, and 20mm
types with in-line crimp monitor lead is straight.
For 25mm types monitor lead is in-line crimped.
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
Thermally Protected Varistors | 11
Thermal Link Configuration and Dimensions (continued)
25mm (Round Type)
3-Leaded, Thermal Link Located on Third Lead
Unit: mm (inch)
Varistor Type
25mm
T max W1 max. W2 max.
181K 7.7 (0.3) 2.0 (0.08) 3.6 (0.14)
201K 7.9 (0.31) 2.1 (0.08) 3.7 (0.15)
221K 8.2 (0.32) 2.2 (0.09) 3.8 (0.15)
241K 8.3 (0.33) 2.3 (0.09) 3.9 (0.15)
271K 8.4 (0.33) 2.4 (0.09) 4.0 (0.16)
301K 8.6 (0.34) 2.6 (0.10) 4.2 (0.17)
331K 8.8 (0.35) 2.8 (0.11) 4.4 (0.17)
361K 8.9 (0.35) 2.9 (0.11) 4.5 (0.18)
391K 9.0 (0.35) 3.1 (0.12) 4.7 (0.19)
431K 9.2 (0.36) 3.3 (0.13) 4.9 (0.19)
471K 9.5 (0.37) 3.5 (0.14) 5.2 (0.20)
511K 9.9 (0.39) 3.7 (0.15) 5.5 (0.22)
561K 10.1 (0.40) 3.9 (0.15) 5.7 (0.22)
621K 10.4 (0.41) 4.2 (0.17) 6.0 (0.24)
681K 10.7 (0.42) *4.5 (0.18) 6.3 (0.25)
751K 11.1 (0.44) *4.8 (0.19) *6.7 (0.26)
781K 11.3 (0.44) *5.0 (0.20) *6.9 (0.27)
821K 11.4 (0.45) *5.2 (0.20) *7.1 (0.28)
911K 11.8 (0.46) *5.6 (0.22) *7.6 (0.30)
102K 12.4 (0.49) *6.1 (0.24) *8.1 (0.32)
112K 12.6 (0.50) *6.6 (0.26) *8.7 (0.34)
122K 12.8 (0.50) *7.0 (0.27) *9.1 (0.36)
Series Size D max H max dø nom. a b
TVZ25 25mm 28.5 (1.12) 35.5 (1.40) 1.0 (0.039) 12.7 (0.50)
± 1.0 (0.039)
6.5 (0.255)
± 1.2 (0.047)
SINCERA
T25D271K
611
D max.
dø
ab
H max.
12.5(0.49)
min.
25 (0.98)
min.
T max.
W2 max.
W1 max.
3
12
2 (Monitor Lead)
MOV
1
3 (Thermal Fuse Element)
TF
In-line Crimp (3 leaded type)*
Note: *Bulk parts for >681 varistor voltage come
standard with in-line crimp (see illustration below)
for straight disk seating on PC boards. Therefore,
W1 dimensions are not applicable. If required with-
out in-line crimp, please reference “Part Number
System” and add “N”.
*NOTE: for 3 leaded 14mm, 18mm, and 20mm
types with in-line crimp monitor lead is straight. For
25mm types monitor lead is in-line crimped.
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
12 | Thermally Protected Varistors
Thermal Link Configuration and Dimensions (continued)
25mm (Rectangular Type)
3-Leaded, Thermal Link Located on Third Lead
Unit: mm (inch)
Varistor Type
25mm (Rectangular Type)
T max W1 max. W2 max.
181K 10.2 (0.40) 3.2 (0.126) 5.3 (0.21)
201K 10.4 (0.41) 3.2 (0.126) 5.3 (0.21)
221K 10.6 (0.42) 3.2 (0.126) 5.3 (0.21)
241K 10.7 (0.42) 3.2 (0.126) 5.3 (0.21)
271K 10.8 (0.43) 3.1 (0.122) 5.3 (0.21)
301K 10.9 (0.43) 4.2 (0.165) 6.4 (0.25)
331K 10.9 (0.43) 4.2 (0.165) 6.4 (0.25)
361K 11.1 (0.44) 4.2 (0.165) 6.4 (0.25)
391K 11.2 (0.44) 4.2 (0.165) 6.4 (0.25)
431K 11.4 (0.45) 4.2 (0.165) 6.4 (0.25)
471K 11.5 (0.45) 4.2 (0.165) 6.4 (0.25)
511K 11.8 (0.46) 5.5 (0.216) 7.5 (0.30)
561K 12.1 (0.48) 5.5 (0.216) 7.5 (0.30)
621K 12.4 (0.49) 5.5 (0.216) 7.5 (0.30)
681K 12.7 (0.50) 5.5 (0.216) 7.5 (0.30)
751K 12.7 (0.50) *6.5 (0.26) *8.5 (0.33)
781K 12.9 (0.51) *6.5 (0.26) *8.5 (0.33)
821K 13.1 (0.52) *6.5 (0.26) *8.5 (0.33)
911K 13.4 (0.53) *6.5 (0.26) *8.5 (0.33)
102K 13.9 (0.55) *6.5 (0.26) *8.5 (0.33)
112K 14.4 (0.57) *6.5 (0.26) *8.5 (0.33)
122K 14.9 (0.59) *6.5 (0.26) *8.5 (0.33)
Series Size D max H max dø nom. a b
TVZ25R 25mm 29.0 (1.14) 35.5 (1.40) 1.0 (0.039) 12.7 (0.5)
± 1.0 (0.039)
6.5 (0.26)
± 1.0 (0.039)
In-line Crimp (3 leaded type)*
Note: *Bulk parts for >681 varistor voltage come
standard with in-line crimp (see illustration below)
for straight disk seating on PC boards. Therefore,
W1 dimensions are not applicable. If required with-
out in-line crimp, please reference “Part Number
System” and add “N”.
*NOTE: for 3 leaded 14mm, 18mm, and 20mm
types with in-line crimp monitor lead is straight. For
25mm types monitor lead is in-line crimped.
2 (Monitor Lead)
MOV
1
3 (Thermal Fuse Element)
TF
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
Thermally Protected Varistors | 13
Thermal Link Configuration and Dimensions (continued)
34mm
3-Leaded, Thermal Link Located on Second Lead
Unit: mm
AC Voltage Type
34mm
T max S
111K 11.9 5.2 ± 0.65
131K 12.2 5.5 ± 0.65
141K 12.3 5.7 ± 0.85
151K 12.4 5.9 ± 0.85
181K 12.8 6.3 ± 0.85
201K 13.0 6.5 ± 0.85
251K 12.8 6.25 ± 0.85
271K 13.0 6.50 ± 0.85
301K 13.3 6.8 ± 1.0
321K 13.5 6.9 ± 1.0
331K 13.6 7.2 ± 1.0
351K 13.8 7.4 ± 1.0
391K 14.2 7.6 ± 1.0
421K 14.5 7.85 ± 1.0
461K 14.8 8.15 ± 1.0
481K 15.0 8.25 ± 1.0
511K 15.4 8.6 ± 1.0
551K 15.6 8.65 ± 1.0
571K 15.9 8.85 ± 1.0
621K 16.4 9.25 ± 1.0
661K 16.9 9.65 ± 1.0
681K 17.2 9.85 ± 1.0
751K 17.8 10.65 ± 1.0
Notes:
Dimension in mm are typical, unless otherwise specied.
37.0 max.
5.3±0.1
22.0 ± 1.0 Middle Terminal
47.5 max.
2.3 ± 0.2
0.8mm ± 0.1
(Middle Terminal
0.55 ± 0.1
S
2.5 to 5.0
42.5 max.
T
Monitor Terminal
3.0 ± 0.25
22.0 ± 1.0
7.5 ± 1.1
4.5 ± 1.1
6.0 ± 0.10
Outside Terminals
Center Terminal
2 Outside Terminals
Alternative Design with 3mm Monitor Terminal
Add suffix X33, see Part Number System.
Monitor
Terminal
Center to center outside terminals.
Center terminal does not
have seating crimp.
Faces of terminal in line ±0.75mm.
6.0±0.1
NOTE: Middle terminal is
not at center.
Faces of Terminal
in line ± 0.75
NOTE: Middle terminal is
not at center.
3 (Monitor Lead)
MOV
1
TF
2 (Thermal Fuse Element)
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
14 | Thermally Protected Varistors
Specifications
14mm Series
2-Leaded
Standard Series
Part Number
RoHS Compliant
Series
Part Number
Maximum Ratings Specifications
Maximum
Continuous
Working Voltage
Maximum
Non-
Repetitive
Surge
Current
(8/20us)
Maximum
Non-
Repetitive
Surge
Energy (2ms)
Maximum
Clamping
Voltage at
Specified
Current
(8/20us)/50A
Nominal Voltage
at 1mA(DC) Current
Typical
Capacitance
at 1MHz
VM(AC) RMS VM(DC) ITM WTM VCVN(DC) min. VN(DC) max. C
(V) (V) (A) (J) (V) (V) (V) (pF)
TVZ14EB181KBS TVZ14EBN181KBS 115 150 6000 35 300 162 198 1100
TVZ14EB201KBS TVZ14EBN201KBS 130 170 6000 50 340 184 226 980
TVZ14EB221KBS TVZ14EBN221KBS 140 180 6000 55 360 200 240 880
TVZ14EB241KBS TVZ14EBN241KBS 150 200 6000 60 395 216 264 780
TVZ14EB271KBS TVZ14EBN271KBS 175 225 6000 70 455 243 297 700
TVZ14EB311KBS TVZ14EBN311KBS 200 255 6000 75 530 281 344 600
TVZ14EB331KBS TVZ14EBN331KBS 210 275 6000 78 560 297 363 560
TVZ14EB361KBS TVZ14EBN361KBS 230 300 6000 80 595 324 396 520
TVZ14EB391KBS TVZ14EBN391KBS 250 320 6000 100 650 351 429 480
TVZ14EB431KBS TVZ14EBN431KBS 275 350 6000 110 710 387 473 440
TVZ14EB471KBS TVZ14EBN471KBS 300 385 6000 125 775 423 517 400
TVZ14EB511KBS TVZ14EBN511KBS 320 420 6000 136 840 459 561 370
TVZ14EB561KBS TVZ14EBN561KBS 360 470 6000 145 960 522 638 340
TVZ14EB621KBS TVZ14EBN621KBS 385 505 6000 150 1025 558 682 300
TVZ14EB681KBS TVZ14EBN681KBS 420 560 6000 160 1120 612 748 280
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
Thermally Protected Varistors | 15
Specifications (continued)
18mm Series
2-Leaded
Standard Series
Part Number
RoHS Compliant
Series
Part Number
Maximum Ratings Specifications
Maximum
Continuous
Working Voltage
Maximum
Non-
Repetitive
Surge
Current
(8/20us)
Maximum
Non-
Repetitive
Surge
Energy
(10/1000us)
Maximum
Clamping
Voltage at
Specified
Current
(8/20us)/80A
Nominal Voltage
at 1mA(DC) Current
Typical
Capacitance
at 1MHz
VM(AC) RMS VM(DC) ITM WTM VCVN(DC) min. VN(DC) max. C
(V) (V) (A) (J) (V) (V) (V) (pF)
TVZ18EB181KBS TVZ18EBN181KBS 115 150 9000 135 320 162 198 1800
TVZ18EB201KBS TVZ18EBN201KBS 130 170 9000 140 340 184 226 1600
TVZ18EB221KBS TVZ18EBN221KBS 140 180 9000 150 360 200 240 1450
TVZ18EB241KBS TVZ18EBN241KBS 150 200 9000 155 395 216 264 1300
TVZ18EB271KBS TVZ18EBN271KBS 175 225 9000 163 455 243 297 1150
TVZ18EB311KBS TVZ18EBN311KBS 200 255 9000 170 505 281 344 990
TVZ18EB361KBS TVZ18EBN361KBS 230 300 9000 190 545 324 396 850
TVZ18EB391KBS TVZ18EBN391KBS 250 320 9000 220 595 351 429 790
TVZ18EB431KBS TVZ18EBN431KBS 275 350 9000 245 650 387 473 710
TVZ18EB471KBS TVZ18EBN471KBS 300 385 9000 270 710 423 517 650
TVZ18EB511KBS TVZ18EBN511KBS 320 420 9000 290 775 459 561 600
TVZ18EB561KBS TVZ18EBN561KBS 360 470 9000 300 800 522 638 550
TVZ18EB621KBS TVZ18EBN621KBS 385 505 9000 314 840 558 682 500
TVZ18EB681KBS TVZ18EBN681KBS 420 560 9000 330 910 612 748 450
TVZ18EB751KBS TVZ18EBN751KBS 460 615 9000 345 1025 675 825 400
TVZ18EB821KBS TVZ18EBN821KBS 510 675 9000 355 1120 738 901 370
TVZ18EB911KBS TVZ18EBN911KBS 550 745 9000 365 1240 819 1001 340
TVZ18EB951KBS TVZ18EBN951KBS 575 785 9000 378 1250 856 1047 320
TVZ18EB102KBS TVZ18EBN102KBS 625 825 9000 388 1350 900 1100 300
TVZ18EB122KBS TVZ18EBN122KBS 750 975 9000 415 1400 1080 1320 260
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
16 | Thermally Protected Varistors
Specifications (continued)
20mm Series
2-Leaded
Standard Series
Part Number
RoHS Compliant
Series
Part Number
Maximum Ratings Specifications
Maximum
Continuous
Working Voltage
Maximum
Non-
Repetitive
Surge
Current
(8/20us)
Maximum
Non-
Repetitive
Surge
Energy (2ms)
Maximum
Clamping
Voltage at
Specified
Current
(8/20us)/100A
Nominal Voltage
at 1mA(DC) Current
Typical
Capacitance
at 1MHz
VM(AC) RMS VM(DC) ITM WTM VCVN(DC) min. VN(DC) max. C
(V) (V) (A) (J) (V) (V) (V) (pF)
TVZ20EB181KBS TVZ20EBN181KBS 115 150 10000 52 300 162 198 2100
TVZ20EB201KBS TVZ20EBN201KBS 130 170 10000 100 340 184 226 1900
TVZ20EB221KBS TVZ20EBN221KBS 140 180 10000 110 360 200 240 1720
TVZ20EB241KBS TVZ20EBN241KBS 150 200 10000 120 395 216 264 1580
TVZ20EB271KBS TVZ20EBN271KBS 175 225 10000 135 455 243 297 1360
TVZ20EB311KBS TVZ20EBN311KBS 200 255 10000 154 530 281 344 1180
TVZ20EB331KBS TVZ20EBN331KBS 210 275 10000 157 560 297 363 1100
TVZ20EB361KBS TVZ20EBN361KBS 230 300 10000 160 595 324 396 1020
TVZ20EB391KBS TVZ20EBN391KBS 250 320 10000 170 650 351 429 940
TVZ20EB431KBS TVZ20EBN431KBS 275 350 10000 190 710 387 473 850
TVZ20EB471KBS TVZ20EBN471KBS 300 385 10000 250 775 423 517 780
TVZ20EB511KBS TVZ20EBN511KBS 320 420 10000 272 840 459 561 720
TVZ20EB561KBS TVZ20EBN561KBS 360 470 10000 285 930 522 638 650
TVZ20EB621KBS TVZ20EBN621KBS 385 505 10000 300 1025 558 682 590
TVZ20EB681KBS TVZ20EBN681KBS 420 560 10000 320 1120 612 748 540
TVZ20EB751KBS TVZ20EBN751KBS 460 615 10000 340 1240 675 825 490
TVZ20EB781KBS TVZ20EBN781KBS 485 640 10000 345 1300 702 808 470
TVZ20EB821KBS TVZ20EBN821KBS 510 670 10000 350 1355 738 902 450
TVZ20EB911KBS TVZ20EBN911KBS 550 745 10000 360 1500 819 1001 400
TVZ20EB951KBS TVZ20EBN951KBS 575 785 10000 375 1568 856 1047 385
TVZ20EB102KBS TVZ20EBN102KBS 625 825 10000 400 1650 900 1100 370
TVZ20EB112KBS TVZ20EBN112KBS 680 895 10000 460 1815 962 1175 340
TVZ20EB122KBS TVZ20EBN122KBS 750 975 10000 480 1980 1080 1320 300
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
Thermally Protected Varistors | 17
Specifications (continued)
25mm Series (Round Type)
2-Leaded
Standard Series
Part Number
RoHS Compliant
Series
Part Number
Maximum Ratings Specifications
Maximum
Continuous
Working Voltage
Maximum
Non-
Repetitive
Surge
Current
(8/20us)
Maximum
Non-
Repetitive
Surge
Energy
(10/1000us)
Maximum
Clamping
Voltage at
Specified
Current
(8/20us)/100A
Nominal Voltage
at 1mA(DC) Current
Typical
Capacitance
at 1MHz
VM(AC) RMS VM(DC) ITM WTM VCVN(DC) min. VN(DC) max. C
(V) (V) (A) (J) (V) (V) (V) (pF)
TVZ25DB181KBS TVZ25DBN181KBS 120 160 18000 180 300 170 207 3900
TVZ25DB201KBS TVZ25DBN201KBS 130 175 18000 200 340 185 225 3080
TVZ25DB221KBS TVZ25DBN221KBS 140 180 18000 225 360 198 242 2800
TVZ25DB241KBS TVZ25DBN241KBS 150 200 18000 235 395 216 264 2570
TVZ25DB271KBS TVZ25DBN271KBS 180 230 18000 245 465 255 311 2280
TVZ25DB301KBS TVZ25DBN301KBS 195 250 18000 255 505 270 330 1920
TVZ25DB331KBS TVZ25DBN331KBS 210 275 18000 270 540 297 363 1800
TVZ25DB361KBS TVZ25DBN361KBS 230 300 18000 315 595 324 396 1650
TVZ25DB391KBS TVZ25DBN391KBS 250 330 18000 342 650 351 429 1530
TVZ25DB431KBS TVZ25DBN431KBS 275 370 18000 370 710 387 473 1390
TVZ25DB471KBS TVZ25DBN471KBS 300 385 18000 390 775 423 517 1270
TVZ25DB511KBS TVZ25DBN511KBS 320 420 18000 422 840 459 561 1170
TVZ25DB561KBS TVZ25DBN561KBS 360 470 18000 460 910 522 638 1060
TVZ25DB621KBS TVZ25DBN621KBS 390 505 18000 495 1025 558 682 960
TVZ25DB681KBS TVZ25DBN681KBS 420 560 18000 515 1120 612 748 880
TVZ25DB751KBS TVZ25DBN751KBS 460 615 18000 530 1240 675 825 790
TVZ25DB781KBS TVZ25DBN781KBS 485 640 18000 540 1240 702 858 760
TVZ25DB821KBS TVZ25DBN821KBS 510 675 18000 550 1350 738 902 730
TVZ25DB911KBS TVZ25DBN911KBS 550 745 18000 600 1400 819 1001 650
TVZ25DB102KBS TVZ25DBN102KBS 625 825 18000 630 1620 900 1100 600
TVZ25DB112KBS TVZ25DBN112KBS 680 865 18000 700 1800 962 1175 540
TVZ25DB122KBS TVZ25DBN122KBS 750 975 18000 720 2100 1080 1320 500
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
18 | Thermally Protected Varistors
Specifications (continued)
25mm Series (Rectangular Type)
2-Leaded
RoHS Compliant
Series
Part Number
Maximum Ratings Specifications
Maximum
Continuous
Working Voltage
Maximum
Non-
Repetitive
Surge
Current
(8/20us)
Maximum
Non-
Repetitive
Surge
Energy
(10/1000us)
Maximum
Clamping
Voltage at
Specified
Current
(8/20us)/100A
Nominal Voltage
at 1mA(DC) Current
Typical
Capacitance
at 1MHz
VM(AC) RMS VM(DC) ITM WTM VCVN(DC) min. VN(DC) max. C
(V) (V) (A) (J) (V) (V) (V) (pF)
TVZ25RBN181KBS 120 160 22000 225 300 170 207 4900
TVZ25RBN201KBS 130 175 22000 250 340 184 226 4500
TVZ25RBN221KBS 140 180 22000 281 360 200 240 4150
TVZ25RBN241KBS 150 200 22000 294 395 216 264 3810
TVZ25RBN271KBS 175 225 22000 306 475 243 297 3250
TVZ25RBN301KBS 195 250 22000 319 505 270 330 3000
TVZ25RBN331KBS 210 275 22000 338 540 297 363 2750
TVZ25RBN361KBS 230 300 22000 394 595 324 396 2560
TVZ25RBN391KBS 250 330 22000 428 650 351 429 2380
TVZ25RBN431KBS 275 370 22000 463 710 387 473 2130
TVZ25RBN471KBS 300 385 22000 488 775 423 517 2000
TVZ25RBN511KBS 320 420 22000 528 865 459 561 1750
TVZ25RBN561KBS 360 470 22000 575 960 522 638 1500
TVZ25RBN621KBS 385 500 22000 619 1040 558 682 1480
TVZ25RBN681KBS 420 560 22000 644 1120 612 748 1380
TVZ25RBN751KBS 460 615 22000 663 1240 675 825 1250
TVZ25RBN781KBS 485 640 22000 675 1290 702 858 1230
TVZ25RBN821KBS 510 675 22000 688 1350 735 902 1150
TVZ25RBN911KBS 550 745 22000 750 1400 819 1001 1100
TVZ25RBN102KBS 625 825 22000 788 1620 900 1100 950
TVZ25RBN112KBS 680 865 22000 875 1815 962 1175 820
TVZ25RBN122KBS 750 970 22000 925 1980 1080 1320 730
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
Thermally Protected Varistors | 19
Specifications (continued)
34mm Series
2-Leaded
Standard Series
Part Number
RoHS Compliant
Series
Part Number
Maximum Ratings Electrical Characteristics
Continuous
Rated Voltage
Rated Single Pulse
Transient
Varistor
Voltage
@ 1mA DC
Maximum
Clamping
Voltage @
Test Current
8/20us
200A
Typical
Capacitance
at 1MHz
AC RMS
Volts
DC
Volts
Energy
(2ms)
Peak Surge
Current
8/20us Min
Volts
Max
Volts Volts
C
WTM 1 x
Pulse
Joules
ITM 1 x Pulse
Amps (pF)
TVZ34RB111KBS TVZ34RBN111KBS 115 150 235 400001163 202 305 10000
TVZ34RB131KBS TVZ34RBN131KBS 130 175 270 400002184 228 345 9000
TVZ34RB141KBS TVZ34RBN141KBS 140 188 291 400003198 248 375 8100
TVZ34RB151KBS TVZ34RBN151KBS 150 200 300 400004212 268 405 7200
TVZ34RB181KBS TVZ34RBN181KBS 180 240 330 400005254 312 488 6300
TVZ34RB201KBS TVZ34RBN201KBS 200 265 335 40000 283 357 540 5300
TVZ34RB251KBS TVZ34RBN251KBS 250 330 370 40000 354 429 650 4800
TVZ34RB271KBS TVZ34RBN271KBS 275 369 400 40000 389 473 730 4100
TVZ34RB301KBS TVZ34RBN301KBS 300 400 435 40000 433 528 780 3700
TVZ34RB321KBS TVZ34RBN321KBS 320 420 460 40000 462 561 830 3600
TVZ34RB331KBS TVZ34RBN331KBS 330 435 475 40000 476 581 855 3500
TVZ34RB351KBS TVZ34RBN351KBS 350 460 500 40000 505 616 910 3400
TVZ34RB391KBS TVZ34RBN391KBS 385 506 550 40000 555 678 1005 2900
TVZ34RB421KBS TVZ34RBN421KBS 420 560 600 40000 610 748 1130 2800
TVZ34RB461KBS TVZ34RBN461KBS 460 610 620 40000 642 783 1188 2600
TVZ34RB481KBS TVZ34RBN481KBS 480 640 650 40000 670 825 1240 2400
TVZ34RB511KBS TVZ34RBN511KBS 510 675 700 40000 735 910 1350 2200
TVZ34RB551KBS TVZ34RBN551KBS 550 700 735 40000 770 939 1415 2000
TVZ34RB571KBS TVZ34RBN571KBS 575 730 770 40000 805 1000 1480 1800
TVZ34RB621KBS TVZ34RBN621KBS 620 800 840 40000 880 1074 1589 1600
TVZ34RB661KBS TVZ34RBN661KBS 660 850 900 40000 940 1160 1720 1500
TVZ34RB681KBS TVZ34RBN681KBS 680 890 950 40000 980 1195 1772 1400
TVZ34RB751KBS TVZ34RBN751KBS 750 970 1050 40000 1080 1320 2000 1200
Notes:
1. Peak current applies to applications rated up to 100VACrms, 132VDC. Peak current is 30kAmax for applications greater than 100VACrms, 132VDC.
2. Peak current applies to applications rated up to 115VACrms, 145VDC. Peak current is 30kAmax for applications greater than 115VACrms, 145VDC.
3. Peak current applies to applications rated up to 123VACrms, 165VDC. Peak current is 30kAmax for applications greater than 123VACrms, 165VDC.
4. Peak current applies to applications rated up to 132VACrms, 176VDC. Peak current is 30kAmax for applications greater than 132VACrms, 176VDC.
5. Peak current applies to applications rated up to 158VACrms, 211VDC. Peak current is 30kAmax for applications greater than 158VACrms, 211VDC.
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
20 | Thermally Protected Varistors
Specifications (continued)
14mm Series
3-Leaded, Thermal Link Located on Second Lead
Standard Series
Part Number
RoHS Compliant
Series
Part Number
Maximum Ratings Specifications
Maximum
Continuous
Working Voltage
Maximum
Non-
Repetitive
Surge
Current
(8/20us)
Maximum
Non-
Repetitive
Surge
Energy (2ms)
Maximum
Clamping
Voltage at
Specified
Current
(8/20us)/100A
Nominal Voltage
at 1mA(DC) Current
Typical
Capacitance
at 1MHz
VM(AC) RMS VM(DC) ITM WTM VCVN(DC) min. VN(DC) max. C
(V) (V) (A) (J) (V) (V) (V) (pF)
TVZ14EC181KBS TVZ14ECN181KBS 115 150 6000 35 300 162 198 1100
TVZ14EC201KBS TVZ14ECN201KBS 130 170 6000 50 340 184 226 980
TVZ14EC221KBS TVZ14ECN221KBS 140 180 6000 55 360 200 240 880
TVZ14EC241KBS TVZ14ECN241KBS 150 200 6000 60 395 216 264 780
TVZ14EC271KBS TVZ14ECN271KBS 175 225 6000 70 455 243 297 700
TVZ14EC311KBS TVZ14ECN311KBS 200 255 6000 75 530 281 344 600
TVZ14EC331KBS TVZ14ECN331KBS 210 275 6000 78 560 297 363 560
TVZ14EC361KBS TVZ14ECN361KBS 230 300 6000 80 595 324 396 520
TVZ14EC391KBS TVZ14ECN391KBS 250 320 6000 100 650 351 429 480
TVZ14EC431KBS TVZ14ECN431KBS 275 350 6000 110 710 387 473 440
TVZ14EC471KBS TVZ14ECN471KBS 300 385 6000 125 775 423 517 400
TVZ14EC511KBS TVZ14ECN511KBS 320 420 6000 136 840 459 561 370
TVZ14EC561KBS TVZ14ECN561KBS 360 470 6000 145 960 522 638 340
TVZ14EC621KBS TVZ14ECN621KBS 385 505 6000 150 1025 558 682 300
TVZ14EC681KBS TVZ14ECN681KBS 420 560 6000 160 1120 612 748 280
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
Thermally Protected Varistors | 21
Specifications (continued)
18mm Series
3-Leaded, Thermal Link Located on Second Lead
Standard Series
Part Number
RoHS Compliant
Series
Part Number
Maximum Ratings Specifications
Maximum
Continuous
Working Voltage
Maximum
Non-
Repetitive
Surge
Current
(8/20us)
Maximum
Non-
Repetitive
Surge
Energy
(10/1000us)
Maximum
Clamping
Voltage at
Specified
Current
(8/20us)/80A
Nominal Voltage
at 1mA(DC) Current
Typical
Capacitance
at 1MHz
VM(AC) RMS VM(DC) ITM WTM VCVN(DC) min. VN(DC) max. C
(V) (V) (A) (J) (V) (V) (V) (pF)
TVZ18EC181KBS TVZ18ECN181KBS 115 150 9000 135 320 162 198 1800
TVZ18EC201KBS TVZ18ECN201KBS 130 170 9000 140 340 184 226 1600
TVZ18EC221KBS TVZ18ECN221KBS 140 180 9000 150 360 200 240 1450
TVZ18EC241KBS TVZ18ECN241KBS 150 200 9000 155 395 216 264 1300
TVZ18EC271KBS TVZ18ECN271KBS 175 225 9000 163 455 243 297 1150
TVZ18EC311KBS TVZ18ECN311KBS 200 255 9000 170 505 281 344 990
TVZ18EC361KBS TVZ18ECN361KBS 230 300 9000 190 545 324 396 850
TVZ18EC391KBS TVZ18ECN391KBS 250 320 9000 220 595 351 429 790
TVZ18EC431KBS TVZ18ECN431KBS 275 350 9000 245 650 387 473 710
TVZ18EC471KBS TVZ18ECN471KBS 300 385 9000 270 710 423 517 650
TVZ18EC511KBS TVZ18ECN511KBS 320 420 9000 290 775 459 561 600
TVZ18EC561KBS TVZ18ECN561KBS 360 470 9000 300 800 522 638 550
TVZ18EC621KBS TVZ18ECN621KBS 385 505 9000 314 840 558 682 500
TVZ18EC681KBS TVZ18ECN681KBS 420 560 9000 330 910 612 748 450
TVZ18EC751KBS TVZ18ECN751KBS 460 615 9000 345 1025 675 825 400
TVZ18EC821KBS TVZ18ECN821KBS 510 675 9000 355 1120 738 901 370
TVZ18EC911KBS TVZ18ECN911KBS 550 745 9000 365 1240 819 1001 340
TVZ18EC951KBS TVZ18ECN951KBS 575 785 9000 378 1250 856 1047 320
TVZ18EC102KBS TVZ18ECN102KBS 625 825 9000 388 1350 900 1100 300
TVZ18EC122KBS TVZ18ECN122KBS 750 975 9000 415 1400 1080 1320 260
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
22 | Thermally Protected Varistors
Specifications (continued)
20mm Series
3-Leaded, Thermal Link Located on Second Lead
Standard Series
Part Number
RoHS Compliant
Series
Part Number
Maximum Ratings Specifications
Maximum
Continuous
Working Voltage
Maximum
Non-
Repetitive
Surge
Current
(8/20us)
Maximum
Non-
Repetitive
Surge
Energy (2ms)
Maximum
Clamping
Voltage at
Specified
Current
(8/20us)/100A
Nominal Voltage
at 1mA(DC) Current
Typical
Capacitance
at 1MHz
VM(AC) RMS VM(DC) ITM WTM VCVN(DC) min. VN(DC) max. C
(V) (V) (A) (J) (V) (V) (V) (pF)
TVZ20EC181KBS TVZ20ECN181KBS 115 150 10000 52 300 162 198 2100
TVZ20EC201KBS TVZ20ECN201KBS 130 170 10000 100 340 184 226 1900
TVZ20EC221KBS TVZ20ECN221KBS 140 180 10000 110 360 200 240 1720
TVZ20EC241KBS TVZ20ECN241KBS 150 200 10000 120 395 216 264 1580
TVZ20EC271KBS TVZ20ECN271KBS 175 225 10000 135 455 243 297 1360
TVZ20EC311KBS TVZ20ECN311KBS 200 255 10000 154 530 281 344 1180
TVZ20EC331KBS TVZ20ECN331KBS 210 275 10000 157 560 297 363 1100
TVZ20EC361KBS TVZ20ECN361KBS 230 300 10000 160 595 324 396 1020
TVZ20EC391KBS TVZ20ECN391KBS 250 320 10000 170 650 351 429 940
TVZ20EC431KBS TVZ20ECN431KBS 275 350 10000 190 710 387 473 850
TVZ20EC471KBS TVZ20ECN471KBS 300 385 10000 250 775 423 517 780
TVZ20EC511KBS TVZ20ECN511KBS 320 420 10000 272 840 459 561 720
TVZ20EC561KBS TVZ20ECN561KBS 360 470 10000 285 930 522 638 650
TVZ20EC621KBS TVZ20ECN621KBS 385 505 10000 300 1025 558 682 590
TVZ20EC681KBS TVZ20ECN681KBS 420 560 10000 320 1120 612 748 540
TVZ20EC751KBS TVZ20ECN751KBS 460 615 10000 340 1240 675 825 490
TVZ20EC781KBS TVZ20ECN781KBS 485 640 10000 345 1300 702 808 470
TVZ20EC821KBS TVZ20ECN821KBS 510 670 10000 350 1355 738 902 450
TVZ20EC911KBS TVZ20ECN911KBS 550 745 10000 360 1500 819 1001 400
TVZ20EC951KBS TVZ20ECN951KBS 575 785 10000 375 1568 856 1047 385
TVZ20EC102KBS TVZ20ECN102KBS 625 825 10000 400 1650 900 1100 370
TVZ20EC112KBS TVZ20ECN112KBS 680 895 10000 460 1815 962 1175 340
TVZ20EC122KBS TVZ20ECN122KBS 750 975 10000 480 1980 1080 1320 300
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
Thermally Protected Varistors | 23
Specifications (continued)
25mm Series (Round Type)
3-Leaded, Thermal Link Located on Third Lead
Standard Series
Part Number
RoHS Compliant
Series
Part Number
Maximum Ratings Specifications
Maximum
Continuous
Working Voltage
Maximum
Non-
Repetitive
Surge
Current
(8/20us)
Maximum
Non-
Repetitive
Surge
Energy
(10/1000us)
Maximum
Clamping
Voltage at
Specified
Current
(8/20us)/100A
Nominal Voltage
at 1mA(DC) Current
Typical
Capacitance
at 1MHz
VM(AC) RMS VM(DC) ITM WTM VCVN(DC) min. VN(DC) max. C
(V) (V) (A) (J) (V) (V) (V) (pF)
TVZ25D181KBS TVZ25DN181KBS 120 160 18000 180 300 170 207 3900
TVZ25D201KBS TVZ25DN201KBS 130 175 18000 200 340 185 225 3080
TVZ25D221KBS TVZ25DN221KBS 140 180 18000 225 360 198 242 2800
TVZ25D241KBS TVZ25DN241KBS 150 200 18000 235 395 216 264 2570
TVZ25D271KBS TVZ25DN271KBS 180 230 18000 245 465 255 311 2280
TVZ25D301KBS TVZ25DN301KBS 195 250 18000 255 505 270 330 1920
TVZ25D331KBS TVZ25DN331KBS 210 275 18000 270 540 297 363 1800
TVZ25D361KBS TVZ25DN361KBS 230 300 18000 315 595 324 396 1650
TVZ25D391KBS TVZ25DN391KBS 250 330 18000 342 650 351 429 1530
TVZ25D431KBS TVZ25DN431KBS 275 370 18000 370 710 387 473 1390
TVZ25D471KBS TVZ25DN471KBS 300 385 18000 390 775 423 517 1270
TVZ25D511KBS TVZ25DN511KBS 320 420 18000 422 840 459 561 1170
TVZ25D561KBS TVZ25DN561KBS 360 470 18000 460 910 522 638 1060
TVZ25D621KBS TVZ25DN621KBS 390 505 18000 495 1025 558 682 960
TVZ25D681KBS TVZ25DN681KBS 420 560 18000 515 1120 612 748 880
TVZ25D751KBS TVZ25DN751KBS 460 615 18000 530 1240 675 825 790
TVZ25D781KBS TVZ25DN781KBS 485 640 18000 540 1240 702 858 760
TVZ25D821KBS TVZ25DN821KBS 510 675 18000 550 1350 738 902 730
TVZ25D911KBS TVZ25DN911KBS 550 745 18000 600 1400 819 1001 650
TVZ25D102KBS TVZ25DN102KBS 625 825 18000 630 1620 900 1100 600
TVZ25D112KBS TVZ25DN112KBS 680 865 18000 700 1800 962 1175 540
TVZ25D122KBS TVZ25DN122KBS 750 975 18000 720 2100 1080 1320 500
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
24 | Thermally Protected Varistors
Specifications (continued)
25mm Series (Rectangular Type)
3-Leaded, Thermal Link Located on Third Lead
RoHS Compliant
Series
Part Number
Maximum Ratings Specifications
Maximum
Continuous
Working Voltage
Maximum
Non-
Repetitive
Surge
Current
(8/20us)
Maximum
Non-
Repetitive
Surge
Energy
(10/1000us)
Maximum
Clamping
Voltage at
Specified
Current
(8/20us)/100A
Nominal Voltage
at 1mA(DC) Current
Typical
Capacitance
at 1MHz
VM(AC) RMS VM(DC) ITM WTM VCVN(DC) min. VN(DC) max. C
(V) (V) (A) (J) (V) (V) (V) (pF)
TVZ25RCN181KBS 120 160 22000 225 300 170 207 4900
TVZ25RCN201KBS 130 175 22000 250 340 184 226 4500
TVZ25RCN221KBS 140 180 22000 281 360 200 240 4150
TVZ25RCN241KBS 150 200 22000 294 395 216 264 3810
TVZ25RCN271KBS 175 225 22000 306 475 243 297 3250
TVZ25RCN301KBS 195 250 22000 319 505 270 330 3000
TVZ25RCN331KBS 210 275 22000 338 540 297 363 2750
TVZ25RCN361KBS 230 300 22000 394 595 324 396 2560
TVZ25RCN391KBS 250 330 22000 428 650 351 429 2380
TVZ25RCN431KBS 275 370 22000 463 710 387 473 2130
TVZ25RCN471KBS 300 385 22000 488 775 423 517 2000
TVZ25RCN511KBS 320 420 22000 528 865 459 561 1750
TVZ25RCN561KBS 360 470 22000 575 960 522 638 1500
TVZ25RCN621KBS 385 500 22000 619 1040 558 682 1480
TVZ25RCN681KBS 420 560 22000 644 1120 612 748 1380
TVZ25RCN751KBS 460 615 22000 663 1240 675 825 1250
TVZ25RCN781KBS 485 640 22000 675 1290 702 858 1230
TVZ25RCN821KBS 510 675 22000 688 1350 735 902 1150
TVZ25RCN911KBS 550 745 22000 750 1400 819 1001 1100
TVZ25RCN102KBS 625 825 22000 788 1620 900 1100 950
TVZ25RCN112KBS 680 865 22000 875 1815 962 1175 820
TVZ25RCN122KBS 750 970 22000 925 1980 1080 1320 730
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
Thermally Protected Varistors | 25
Specifications (continued)
34mm Series
3-Leaded
Standard Series
Part Number
RoHS Compliant
Series
Part Number
Maximum Ratings Electrical Characteristics
Continuous
Rated Voltage
Rated Single Pulse
Transient
Varistor
Voltage
@ 1mA DC
Maximum
Clamping
Voltage @
Test Current
8/20us
200A
Typical
Capacitance
at 1MHz
AC RMS
Volts
DC
Volts
Energy
(2ms)
Peak Surge
Current
8/20us Min
Volts
Max
Volts Volts
C
WTM 1 x
Pulse
Joules
ITM 1 x Pulse
Amps (pF)
TVZ34RC111KBS TVZ34RCN111KBS 115 150 235 400001163 202 305 10000
TVZ34RC131KBS TVZ34RCN131KBS 130 175 270 400002184 228 345 9000
TVZ34RC141KBS TVZ34RCN141KBS 140 188 291 400003198 248 375 8100
TVZ34RC151KBS TVZ34RCN151KBS 150 200 300 400004212 268 405 7200
TVZ34RC181KBS TVZ34RCN181KBS 180 240 330 400005254 312 488 6300
TVZ34RC201KBS TVZ34RCN201KBS 200 265 335 40000 283 357 540 5300
TVZ34RC251KBS TVZ34RCN251KBS 250 330 370 40000 354 429 650 4800
TVZ34RC271KBS TVZ34RCN271KBS 275 369 400 40000 389 473 730 4100
TVZ34RC301KBS TVZ34RCN301KBS 300 400 435 40000 433 528 780 3700
TVZ34RC321KBS TVZ34RCN321KBS 320 420 460 40000 462 561 830 3600
TVZ34RC331KBS TVZ34RCN331KBS 330 435 475 40000 476 581 855 3500
TVZ34RC351KBS TVZ34RCN351KBS 350 460 500 40000 505 616 910 3400
TVZ34RC391KBS TVZ34RCN391KBS 385 506 550 40000 555 678 1005 2900
TVZ34RC421KBS TVZ34RCN421KBS 420 560 600 40000 610 748 1130 2800
TVZ34RC461KBS TVZ34RCN461KBS 460 610 620 40000 642 783 1188 2600
TVZ34RC481KBS TVZ34RCN481KBS 480 640 650 40000 670 825 1240 2400
TVZ34RC511KBS TVZ34RCN511KBS 510 675 700 40000 735 910 1350 2200
TVZ34RC551KBS TVZ34RCN551KBS 550 700 735 40000 770 939 1415 2000
TVZ34RC571KBS TVZ34RCN571KBS 575 730 770 40000 805 1000 1480 1800
TVZ34RC621KBS TVZ34RCN621KBS 620 800 840 40000 880 1074 1589 1600
TVZ34RC661KBS TVZ34RCN661KBS 660 850 900 40000 940 1160 1720 1500
TVZ34RC681KBS TVZ34RCN681KBS 680 890 950 40000 980 1195 1772 1400
TVZ34RC751KBS TVZ34RCN751KBS 750 970 1050 40000 1080 1320 2000 1200
Notes:
1. Peak current applies to applications rated up to 100VACrms, 132VDC. Peak current is 30kAmax for applications greater than 100VACrms, 132VDC.
2. Peak current applies to applications rated up to 115VACrms, 145VDC. Peak current is 30kAmax for applications greater than 115VACrms, 145VDC.
3. Peak current applies to applications rated up to 123VACrms, 165VDC. Peak current is 30kAmax for applications greater than 123VACrms, 165VDC.
4. Peak current applies to applications rated up to 132VACrms, 176VDC. Peak current is 30kAmax for applications greater than 132VACrms, 176VDC.
5. Peak current applies to applications rated up to 158VACrms, 211VDC. Peak current is 30kAmax for applications greater than 158VACrms, 211VDC.
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
26 | Thermally Protected Varistors
Thermal Characteristics & Soldering Profile
100%
20 100 1000
10000
10%
1%
Percentage of Peak Current Rating
Pulse Duration (µs)
0.1%
0.01%
Peak Current Per Pulse
Vs. Pulse Duration
1 Repetition - (Top line on graph)
2 Repetitions
10 Repetitions
102 Repetitions
103 Repetitions
104 Repetitions
105 Repetitions
106 Repetitions - (Bottom line on graph)
(Typical time to open according to UL1449 Abnormal Overvoltage
Limited Current Test.)
Percentage of
Rated Power Energy
120%
100%
80%
60%
40%
20%
0%
-55
50
60
70
80
90
100
110
120
130
Ambient Temperature °C
Temperature Derating Curve Power
and Energy Rating Vs. Temperature
For applications exceeding 85˚C ambient temper-
ature, the peak surge current and energy ratings
must be reduced as shown in above Figure.
Time(s)
Limited Current (A)
0.1
1
10
10 100 1000
10000
5 AMP
2.5 AMP
0.5 AMP
0.125 AMP
10 AMP
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
Thermally Protected Varistors | 27
Wave Solder Profile
±10% typical voltage change
±10% typical voltage change
±10% typical voltage change
MIL-STD-202, Method 215F
Level 1
Non lead free parts: Solder coated copper
wire, or tin coated copper wire
Lead free parts: Tin coated copper wire
Solderability per MIL- STD-202,
Method 208E
Cured, ame retardant epoxy polymer
meets UL94V-0 requirements
Ph
ysical Specifications Environmental Specifications
0
50
100
150
200
250
300
00.5 11.5 22.5 33.5 4
TIME (MINUTES)
TEMPERATURE
(ºC)
Maximum Wave 240C
Lead Free Profile
0
50
100
150
200
250
300
00.5 11.5 22.5 33.5 4
TIME (MINUTES)
TEMPERATURE
(ºC)
Maximum Wave 260C
Non Lead
Free Profile
B
ecause TVZ varistors contain a thermal protection device,
care
must be taken when soldering the devices into place.
Tw
o soldering methods are possible. First, hand soldering:
It is recommended to heat-sink the leads of the device. Second,
wave-soldering: It is critically important that all preheat stage and
the solder bath temperatures are rigidly controlled.
Lead Material
Soldering
Characteristics
Insulating Material
Operating/Storage
Temperature
Passive Aging
Humidity Aging
Thermal Shock
Solvent Resistance
Moisture Sensitivity
Thermal Characteristics & Soldering Profile (continued)
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
28 | Thermally Protected Varistors
V-I Characteristics
14mm Disc Size
681K - (Top line on graph)
621K
471K
431K
391K
361K
271K
241K
201K - (Bottom line on graph)
10
100
1000
Peak Voltage (V)
10000
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
10
0
10
1
10
2
10
3
10
4
10
5
Max. Leakage
Current
Max. Clamping
Voltage
Varistor Current (A)
Pulse: 8x20s Direct Current
18mm Disc Size
911K - (Top line on graph)
821K
681K
621K
511K
471K
431K
391K
361K
271K
241K
201K - (Bottom line on graph) 10
100
1000
Peak Voltage (V)
10000
10-6
10-5
10-4
10-3
10 -2
10-1
100
101
102
103
104
10
5
Max. Leakage
Current
Max. Clamping
Voltage
Varistor Current (A)
Pulse: 8x20µsDirect Current
20mm Disc Size
911K - (Top line on graph)
821K
681K
471K
431K
391K
271K
241K
221K
201K - (Bottom line on graph)
10
100
1000
Peak Voltage (V)
10000
10-6
10-5
10-4
10-3
10 -2
10-1
100
101
102
103
104
10
5
Varistor Current (A)
Pulse: 8x20µsDirect Current
Max. Leakage
Current
Max. Clamping
Voltage
At idle power, current levels shown to the left of the discontinuity illustrate typically the high end leakage current. However, if lower leakage current levels are
desired, they may be guaranteed. in the clamping voltage region to the right of the discontinuity, maximum clamping voltage is plotted.
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
Thermally Protected Varistors | 29
V-I Characteristics (continued)
25mm Disc Size
911K - (Top line on graph)
821K
751K
681K
621K
511K
471K
431K
391K
361K
271K
241K
201K - (Bottom line on graph)
10
100
1000
Peak Voltage (V)
10000
10-6
10-5
10-4
10-3
10 -2
10-1
100
101
102
103
104
10
5
Max. Leakage
Current
Max. Clamping
Voltage
Varistor Current (A)
Pulse: 8x20µsDirect Current
34mm Disc Size
751K - (Top line on graph)
681K
661K
571K
551K
511K
481K
441K
421K
391K
351K
331K
321K
301K
271K
251K
201K
181K - (Bottom line on graph)
1000
10000
0.001 0.01 0.1 110 100 10000
100000
TA = -55°C to 85°C
Current - AMPS
100
1000
Peak Voltage (V)
Varistor Current (A)
At idle power, current levels shown to the left of the discontinuity illustrate typically the high end leakage current. However, if lower leakage current levels are
desired, they may be guaranteed. in the clamping voltage region to the right of the discontinuity, maximum clamping voltage is plotted.
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
30 | Thermally Protected Varistors
Taping Specifications
14mm
Available for rated voltages <420VAC. Contact World Products Inc. for availability of higher voltages.
Unit: mm
W1
W
LX
P0F
W0
d
L
P2
D
d
DP2P
F
P0
W
D0LX
W0W2
L
H1
A
H0
W1
hh
T8(Ammo Box)
T16(Reel)
T1U(Ammo Box)
T1N(Reel)
1.7 mm
Max
t
P
D0
W2
H1
A
H0
Inward Crimp Outward Crimp
ITEM Disk Size
14F
Taping Code T1N, T1U, T8, T16
Body Diameter D 17.5 Max.
Lead Wire Diameter d 0.8 ± 0.05
Pitch of Component P 25.4 ± 1
Hole Center to Component Center P212.7 ± 0.3
Feed Hole Pitch P012.7 ± 0.2
Lead to Lead Distance (Center to Center) F 7.5 ± 0.8
Component Alignment ∆h 2.0 Max.
Base paper Tape Width W 18 +1, -0.5
Adhesive Tape Width W010 Min.
Hole Position W19.0 ± 0.5
Adhesive Tape Border W21.5 Max.
Lead Wire Clinch Height H016 ± 1
Component Height H140 Max.
Lead-Wire Protrusion Lx 1.0 Max.
Feed Hole Diameter D04.0 ± 0.2
Total Tape Thickness t < 0.7
Length of Clipped Lead L 11 Max.
Component Height from Seating Plane A 22.5 Max.
Based on EIA-468-B Specication.
Ammo Box
B
C
A
Unit: mm
Ammo Box Taping Codes:
T1U, T8
A = 65 max
B = 250 max
C = 340 max
<300VAC = 500 to 1000 pieces
>300VAC = 300 pieces
Reel
W
AB
D
Unit: mm
Reel Taping Codes:
T1N, T16
A = Approximately 30ø
B = Approximately 95ø
D = 350ømax
W = Approximately 50
<300VAC = 500 to 1000
pieces
>300VAC = 300 pieces
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
Thermally Protected Varistors | 31
Taping Specifications (continued)
18mm & 20mm
Unit: mm
d
d
D0
h
W2
F
P0
W0
L
H1
A
W1
W
LX
h
DP2P
H0
W2
F
P0D0
W0
L
H1
A
W1
W
LX
h
DP2P
H0
T2 (Ammo Box)
T25 (Reel)
W1
W
LX
P0F
W0
d
L
P2
D
1.7 mm
Max
t
P
D0
W2
H1
A
H0
T45 (Ammo Box)
T1X (Reel)
Outward Crimp
T40 (Ammo Box)
T4X (Reel)
Inward Crimp
In-Line Crimp
Applicable for both 2 leaded and 3 leaded types.
(Note: For 3 leaded types the monitor lead is straight.)
T44 (Ammo Box)
T1H (Reel)
Straight Lead
ITEM Disk Size
T18F, T20F
Taping Code T45, T1X, T40, T4X,T44,T1H T2, T25
Body Diameter D 24 Max* 24 Max*
Lead Wire Diameter d 0.8 ± 0.1** 0.8 ± 0.1**
Pitch of Component P 25.4 ± 1.0 25.4 ± 1.0
Feed Hole Pitch P012.7 ± 0.2 12.7 ± 0.2
Hole Center to Component Center P212.7 ± 0.3 12.7 ± 0.3
Lead to Lead Distance (Center to Center) F 7.5 ± 0.8 7.5 ± 0.8
Component Alignment ∆h 2.0 Max. 2.0 Max.
Base paper Tape Width W 18 +1, -0.5 18 +1, -0.5
Adhesive Tape Width W010 Min. 10 Min.
Hole Position W19 ± 0.5 9 ± 0.5
Adhesive Tape Border W21.5 Max. 1.5 Max.
Lead Wire Clinch Height H016 ± 1 16 ± 1
Component Height H148 Max.* 48 Max.*
Lead-Wire Protrusion Lx 1.0 Max. 1.0 Max.
Feed Hole Diameter D04 ± 0.2 4 ± 0.2
Total Tape Thickness t < 0.7 < 0.7
Length of Clipped Lead L 11 Max. 11 Max.
Component Height from Seating Plane A 29 Max.* 28 Max.*
*For 18ø, D = 22 Max., H1 = 46 Max. and A = 26 Max. Based on EIA-468-B specication.
**0.8mm ± 0.1 mm (181-681k), 1.0mm ± 0.1 mm (751-122k)
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
32 | Thermally Protected Varistors
Taping Specifications (continued)
18mm & 20mm (continued)
Available for rated voltages <420VAC. Contact World Products Inc. for availability of higher voltages.
Ammo Box
B
C
A
Unit: mm
Ammo Box Taping Codes:
T2, T45, T40
A = 65 max
B = 250 max
C = 340 max
<300VAC = 500 pieces
>300VAC = 300 pieces
Reel
W
AB
D
Unit: mm
Reel Taping Codes:
T25, T1X, T4X
A = Approximately 30ø
B = Approximately 95ø
D = 350ømax
W = Approximately 50
<300VAC = 500 pieces
>300VAC = 300 pieces
Standard Bulk Packaging
Disk Size mm Varistor Voltage Quantity pcs/bag Quantity pcs/carton
14 ALL 300 3000
18 ALL 200 2000
20 181K - 681K 100 1000
Above 751K 50 500
25 181K - 681K 50 500
Above 751K 30 300
34
111K - 251K 80 320
271K - 391K 60 240
421K - 751K 40 160
W
L
H
L = approx. 395mm
W = appr
ox. 285mm
H = approx. 180mm
Carton Size of Bulk Packaging
Thermally ProTecTecTed VarisTors
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com Rev. 12.9
Thermally Protected Varistors | 33
World Products Inc. Reserves Copyright
TVZ20EC241KBS
TVZ18EC201KBS
All application notes/circuits are shown as examples only. It is the responsibility of the purchaser to insure that the application meets purchaser’s
specifications. No representation or warranty, whether express or implied, is given and no liability is assumed by WPI with respect to the use of
such examples.
TVZ20EC241KBS
120V AC
C-M
CHOKE
Thermally Protected Varistors are surge protective components (SPC’s). The congurations available are either a two
or three leaded component. One lead is connected to a thermal link, which may open when the varistor is subjected to
prolonged over-voltage conditions in both AC and DC applications, thereby preventing failure mode of the varistor. This
component (in the three leaded conguration) further provides for diagnostic capabilities in the customers circuit.
Line
Line Fuse
Neutral
Normally On
Monitor Lead
LED
R
120VAC
VZ20D241KBS
VZ20D241KBS
TVZ20EC241KBS
AC Line Application Examples
DISCLAIMER: The names of the products and the specications in this catalog are subject to change without notice for the sake of improvement. World
Products Inc. also reserves the right to discontinue any of these products. The products in this catalog are intended for use in ordinary electronic products. If any
of these products are to be used in special applications requiring extremely high reliability, where product defects might pose a safety risk, please consult World
Products Inc. Though World Products Inc. has taken all possible precautions to ensure the quality and reliability of its products, improper use of products may
result in bodily injury, re, or similar accident. If you have any questions regarding the use of the products in question, please consult World Products Inc. Please
be advised that World Products Inc. accepts no responsibility for any infraction by users of World Products Inc. products on third party patents or industrial
copyrights.
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