Metal Oxide Varistor：TVT Series
Thermally Protected Varistor Series
THINKING ELECTRONIC INDUSTRIAL Co., LTD. 76 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
Features
1. RoHS compliant
2. Halogen-free series are available
3. Two-Terminal or Three-Terminal thermally protected metal oxide varistor,
Three-Terminal type is available for failure indication.
4. Body size: 14, 20, 25, 32, and 34*34 mm
5. Working voltage: 130Vac ~ 750Vac
6. Operating temperature range：-40°C ~ +85°C
Storage temperature range：-40°C ~ +110°C
7. Patent: US 7,453,681
8. Agency approval:
- TVT14 and TVT20 Series: UL1449 3rd & cUL/ TUV
- TVT25, 32, and 34 Series: TUV
UL Pending
9. UL1449 3rd SPD Type: Type 4 Assemblies
10. Meets UL 1449 3rd 39.4 limited current abnormal over- voltage test.
11. TVT14 and TVT20 Series meet IEC 60950-1 Annex Q requirement
12. Suitable for wave flow soldering
Recommended Applications
1. TVSS modules
2. Uninterruptible power supplies
3. Power supplies
4. Lighting products
5. Communication products
6. Smart meter
7. Photovoltaic industry
Part Number Code
T V T 1 4 2 4 1 K A K G B
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Product Type
TVT
THINKING Thermally
Protected Varistor
TVT Series
Varistor
Voltage(V1mA )
180 18x100V=18V
241 24x101V=240V
102 10x102V=1000V
Structure
ATwo-Terminal,
Coating Structure
BThree-Terminal,
Coating Structure
ETwo-Terminal,
Potting Structure
FThree-Terminal,
Potting Structure
Tolerance of V1mA
K ±10%
Optional Suffix
001~999
Packaging
B Bulk
E Box
Disc Size
14 Φ14mm
20 Φ20mm
25 Φ25mm
32 Φ32mm
34 34*34mm
Appearance
KG Straight lead
KO Outer kink lead
KI Inner kink lead
AU Flat wire (For TVT34 series)
Metal Oxide Varistor：TVT Series
Thermally Protected Varistor Series
THINKING ELECTRONIC INDUSTRIAL Co., LTD. 77 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
Structure and Dimensions
TVT14 ~ TVT20 Series
Two-Terminal Type Three-Terminal Type
(Unit: mm)
Series Lead Type D P P1 H H1 d W Tmax
TVT14201~122 Two-Terminal 15.5~18.5 7.5±1 -- 18.5~24 -- 0.8±0.05
TVT14201~122 Three-Terminal 15.5~18.5 7.5±1 4.0~6.0 18.5~24 7.0~18 0.8±0.05
TVT20201~681 0.8±0.05
TVT20751~122
Two-Terminal 19.5~23.5 7.5±1 -- 21.5~27 -- 1.0±0.05
TVT20201~681 0.8±0.05
TVT20751~122
Three-Terminal 19.5~23.5 7.5±1 4.0~6.0 21.5~27 12.5~18 1.0±0.05
Please Refer to
Electrical
Characteristics
W
P
H
T
D
d
T
P
W
P1
D
H
H1
Metal Oxide Varistor：TVT Series
Thermally Protected Varistor Series
THINKING ELECTRONIC INDUSTRIAL Co., LTD. 78 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
TVT25 ~ TVT32 Series
Two-Terminal Type Three-Terminal Type
TVT34 Series
Two-Terminal Type Three-Terminal Type
Series Lead Type D±1.0 H±1.0 H1min P±1.0 P1±1.0 d±0.05 W Tmax
Two -Terminal 10.0 ------ 1.0
TVT25
Three -Terminal
28.0 29.5
10.0 5.0 1.0
Two -Terminal 15.0 ------ 1.5
TVT32
Three -Terminal
35.0 36.5
15
15.0 9.0 1.5
Please Refer to
Electrical
Characteristics
Series Type D±1.0 Hmax H1max. P±1.0 P1±1.0 L1±0.05 L2±0.05 L3±0.05 W Tmax
Two -Terminal 21.5 ----- 6 6 -----
TVT34
Three -Terminal
37.5 44 8
23.5 12 6 5 3
Please Refer to
Electrical
Characteristics
(Unit: mm)
(Unit: mm)
d
D
H
Φd
T
P
W
P1
H1
d
Metal Oxide Varistor：TVT Series
Thermally Protected Varistor Series
THINKING ELECTRONIC INDUSTRIAL Co., LTD. 79 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
Electrical Characteristics
14mm Series
Varistor
Voltage
（＠1mA DC）
Max.
Continuous
Voltage
Max.
Clamping
Voltage
(8/20μs)
Max.
Surge
Current
(8/20μs)
Rated
Power
Max.
Energy
(10/1000μs)
Reference
Capacitance
@1KHz
Dimension
V1mA VAC(rms) VDC VP IP Imax P Wmax Cp Tmax W±1.0
Part No.
(V) (V) (V) (V) (A) (KA) (W) (J) (pF) (mm)
TVT14201 200 (180~220) 130 170 340 50 6 0.6 77 700 8.8 3.0
TVT14221 220 (198~242) 140 180 365 50 6 0.6 86 640 8.9 3.1
TVT14241 240 (216~264) 150 200 395 50 6 0.6 94 580 9.1 3.3
TVT14271 270 (243~297) 175 225 455 50 6 0.6 110 520 9.3 3.5
TVT14301 300 (270~330) 195 250 500 50 6 0.6 118 480 9.0 3.2
TVT14331 330 (297~363) 215 275 550 50 6 0.6 127 450 9.1 3.3
TVT14361 360 (324~396) 230 300 595 50 6 0.6 137 430 9.3 3.5
TVT14391 390 (351~429) 250 320 650 50 6 0.6 154 390 9.5 3.6
TVT14431 430 (387~473) 275 350 710 50 6 0.6 170 370 9.2 3.4
TVT14471 470 (423~517) 300 385 775 50 6 0.6 192 320 9.3 3.5
TVT14511 510 (459~561) 320 410 845 50 6 0.6 209 290 9.5 3.7
TVT14561 560 (504~616) 350 450 930 50 6 0.6 220 260 9.7 3.9
TVT14621 620 (558~682) 395 510 1025 50 6 0.6 231 240 10.0 4.1
TVT14681 680 (612~748) 420 560 1120 50 6 0.6 242 230 10.3 4.4
TVT14751 750 (675~825) 465 615 1240 50 6 0.6 247 220 10.6 4.7
TVT14781 780 (702~858) 485 640 1290 50 6 0.6 260 200 10.1 4.3
TVT14821 820 (738~902) 510 670 1355 50 6 0.6 270 180 10.2 4.5
TVT14911 910 (819~1001) 550 745 1500 50 6 0.6 280 170 10.6 4.8
TVT14951 950 (855~1045) 575 765 1570 50 6 0.6 290 160 10.7 4.9
TVT14102 1000 (900~1100) 625 825 1650 50 6 0.6 305 150 10.9 5.1
TVT14112 1100 (990~1210) 680 895 1815 50 6 0.6 340 140 11.2 5.4
TVT14122 1200 (1080~1320) 750 980 2000 50 6 0.6 350 130 11.6 5.8
Metal Oxide Varistor：TVT Series
Thermally Protected Varistor Series
THINKING ELECTRONIC INDUSTRIAL Co., LTD. 80 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
20mm Series
Varistor Voltage
（＠1mA DC）
Max.
Continuous
Voltage
Max.
Clamping
Voltage
(8/20μs)
Max.
Surge
Current
(8/20μs)
Rated
Power
Max.
Energy
(10/1000μs)
Reference
Capacitance
@1KHz
Dimension
V1mA VAC(rms) VDC VP IP Imax P Wmax Cp Tmax W±1.0
Part No.
(V) (V) (V) (V) (A) (KA) (W) (J) (pF) (mm)
TVT20201 200 (180~220) 130 170 340 100 10 1.0 140 1460 10.2 3.0
TVT20221 220 (198~242) 140 180 365 100 10 1.0 155 1320 10.3 3.1
TVT20241 240 (216~264) 150 200 395 100 10 1.0 170 1200 10.5 3.3
TVT20271 270 (243~297) 175 225 455 100 10 1.0 190 1100 10.7 3.5
TVT20301 300 (270~330) 195 250 500 100 10 1.0 205 1000 10.4 3.2
TVT20331 330 (297~363) 215 275 550 100 10 1.0 215 950 10.5 3.3
TVT20361 360 (324~396) 230 300 595 100 10 1.0 225 900 10.7 3.5
TVT20391 390 (351~429) 250 320 650 100 10 1.0 240 800 10.9 3.6
TVT20431 430 (387~473) 275 350 710 100 10 1.0 270 700 10.6 3.4
TVT20471 470 (423~517) 300 385 775 100 10 1.0 350 620 10.7 3.5
TVT20511 510 (459~561) 320 410 845 100 10 1.0 386 530 10.9 3.7
TVT20561 560 (504~616) 350 450 930 100 10 1.0 400 480 11.1 3.9
TVT20621 620 (558~682) 395 510 1025 100 10 1.0 425 450 11.4 4.1
TVT20681 680 (612~748) 420 560 1120 100 10 1.0 455 440 11.7 4.4
TVT20751 750 (675~825) 465 615 1240 100 10 1.0 509 420 12.0 4.7
TVT20781 780 (702~858) 485 640 1290 100 10 1.0 515 400 11.5 4.3
TVT20821 820 (738~902) 510 670 1355 100 10 1.0 475 390 11.6 4.5
TVT20911 910 (819~1001) 550 745 1500 100 10 1.0 509 360 12.0 4.8
TVT20951 950 (855~1045) 575 765 1570 100 10 1.0 530 340 12.1 4.9
TVT20102 1000 (900~1100) 625 825 1650 100 10 1.0 560 330 12.3 5.1
TVT20112 1100 (990~1210) 680 895 1815 100 10 1.0 610 310 12.6 5.4
TVT20122 1200 (1080~1320) 750 980 2000 100 10 1.0 620 290 13.0 5.8
Metal Oxide Varistor：TVT Series
Thermally Protected Varistor Series
THINKING ELECTRONIC INDUSTRIAL Co., LTD. 81 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
25mm Series
Varistor Voltage
（＠1mA DC）
Max.
Continuous
Voltage
Max.
Clamping
Voltage
(8/20μs)
Max.
Surge
Current
(8/20μs)
Nominal
Discharge
Current*1
(8/20μs)
Rated
Power
Max.
Energy
(10/1000μs)
Reference
Capacitance
@1KHz
Dimension
V1mA VAC(rms) VDC VP IP Imax In P Wmax Cp Tmax W±1.0
Part No.
(V) (V) (V) (V) (A) (KA) (KA) (W) (J) (pF) (mm)
TVT25201 200 (180~220) 130 170 340 150 15 5 1.0 210 2200 3.5
TVT25221 220 (198~242) 140 180 360 150 15 5 1.0 230 2000 3.6
TVT25241 240 (216~264) 150 200 395 150 15 5 1.0 255 1900 3.8
TVT25271 270 (243~297) 175 225 455 150 15 5 1.0 285 1600 4.0
TVT25301 300 (270~330) 195 250 500 150 15 5 1.0 310 1500 3.7
TVT25331 330 (297~363) 215 275 550 150 15 5 1.0 325 1400 3.8
TVT25361 360 (324~396) 230 300 595 150 15 5 1.0 340 1300 4.0
TVT25391 390 (351~429) 250 320 650 150 15 5 1.0 360 1100 4.2
TVT25431 430 (387~473) 275 350 710 150 15 5 1.0 440 1000 4.1
TVT25471 470 (423~517) 300 385 775 150 15 5 1.0 490 950 4.3
TVT25511 510 (459~561) 320 410 845 150 15 5 1.0 530 900 4.5
TVT25561 560 (504~616) 350 450 930 150 15 5 1.0 560 800 4.7
TVT25621 620 (558~682) 395 510 1020 150 15 5 1.0 590 700 5.0
TVT25681 680 (612~748) 420 560 1120 150 15 5 1.0 620 650 5.3
TVT25751 750 (675~825) 465 615 1235 150 15 5 1.0 630 600 5.6
TVT25781 780 (702~858) 485 640 1290 150 15 5 1.0 675 550 4.8
TVT25821 820 (738~902) 510 670 1355 150 15 5 1.0 690 520 5.0
TVT25911 910 (819~1001) 550 745 1500 150 15 5 1.0 715 500 5.3
TVT25951 950 (855~1045) 575 765 1570 150 15 5 1.0 740 450 5.4
TVT25102 1000 (900~1100) 625 825 1650 150 15 5 1.0 770 430 5.6
TVT25112 1100 (990~1210) 680 895 1815 150 15 5 1.0 840 400 5.9
TVT25122 1200 (1080~1320) 750 980 2000 150 15 5 1.0 910 380
13.5
6.3
Note:
*1: Nominal discharge current is the specification defined in UL 1449 3rd and use 8/20μs current waveform to test the varistor.
Metal Oxide Varistor：TVT Series
Thermally Protected Varistor Series
THINKING ELECTRONIC INDUSTRIAL Co., LTD. 82 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
32mm Series
Varistor Voltage
（＠1mA DC）
Max.
Continuous
Voltage
Max.
Clamping
Voltage
(8/20μs)
Max.
Surge
Current
(8/20μs)
Nominal
Discharge
Current*1
(8/20μs)
Rated
Power
Max.
Energy
(10/1000μs)
Reference
Capacitance
@1KHz
Dimension
V1mA VAC(rms) VDC VP IP Imax In Cp Wmax Cp Tmax W±1.0
Part No.
(V) (V) (V) (V) (A) (KA) (KA) (W) (J) (pF) (mm)
TVT32201 200 (180~220) 130 170 340 200 25 10 1.2 295 3900 3.5
TVT32221 220 (198~242) 140 180 360 200 25 10 1.2 315 3500 3.6
TVT32241 240 (216~264) 150 200 395 200 25 10 1.2 340 3300 3.8
TVT32271 270 (243~297) 175 225 455 200 25 10 1.2 360 2800 4.0
TVT32301 300 (270~330) 195 250 500 200 25 10 1.2 380 2600 3.7
TVT32331 330 (297~363) 215 275 550 200 25 10 1.2 400 2400 3.8
TVT32361 360 (324~396) 230 300 595 200 25 10 1.2 420 2200 4.0
TVT32391 390 (351~429) 250 320 650 200 25 10 1.2 465 2000 4.2
TVT32431 430 (387~473) 275 350 710 200 25 10 1.2 505 1800 4.1
TVT32471 470 (423~517) 300 385 775 200 25 10 1.2 570 1700 4.3
TVT32511 510 (459~561) 320 410 845 200 25 10 1.2 605 1600 4.5
TVT32561 560 (504~616) 350 450 930 200 25 10 1.2 660 1400 4.7
TVT32621 620 (558~682) 395 510 1020 200 25 10 1.2 770 1250 5.0
TVT32681 680 (612~748) 420 560 1120 200 25 10 1.2 840 1150 5.3
TVT32751 750 (675~825) 465 615 1235 200 25 10 1.2 925 1100 5.6
TVT32781 780 (702~858) 485 640 1290 200 25 10 1.2 955 1050 4.8
TVT32821 820 (738~902) 510 670 1355 200 25 10 1.2 770 950 5.0
TVT32911 910 (819~1001) 550 745 1500 200 25 10 1.2 870 900 5.3
TVT32951 950 (855~1045) 575 765 1570 200 25 10 1.2 925 850 5.4
TVT32102 1000 (900~1100) 625 825 1650 200 25 10 1.2 965 800 5.0
TVT32112 1100 (990~1210) 680 895 1815 200 25 10 1.2 1065 750 5.3
TVT32122 1200 (1080~1320) 750 980 2000 200 25 10 1.2 1120 650
13.5
6.3
Note:
*1: Nominal discharge current is the specification defined in UL 1449 3rd and use 8/20μs current waveform to test the varistor.
Metal Oxide Varistor：TVT Series
Thermally Protected Varistor Series
THINKING ELECTRONIC INDUSTRIAL Co., LTD. 83 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
34*34mm Series
Varistor Voltage
（＠1mA DC）
Max.
Continuous
Voltage
Max.
Clamping
Voltage
(8/20μs)
Max.
Surge
Current
(8/20μs)
Nominal
Discharge
Current*1
(8/20μs)
Rated
Power
Max.
Energy
(10/1000μs)
Reference
Capacitance
@1KHz
Dimension
V1mA VAC(rms) VDC VP IP Imax In P Wmax Cp Tmax W±1.0
Part No.
(V) (V) (V) (V) (A) (KA) (KA) (W) (J) (pF) (mm)
TVT34201 200 (180~220) 130 170 340 300 40 20 1.4 435 5600 5.0
TVT34221 220 (198~242) 140 180 360 300 40 20 1.4 480 5000 5.1
TVT34241 240 (216~264) 150 200 395 300 40 20 1.4 505 4800 5.3
TVT34271 270 (243~297) 175 225 455 300 40 20 1.4 560 4100 5.5
TVT34301 300 (270~330) 195 250 500 300 40 20 1.4 590 3800 5.2
TVT34331 330 (297~363) 215 275 550 300 40 20 1.4 620 3500 5.3
TVT34361 360 (324~396) 230 300 595 300 40 20 1.4 645 3200 5.5
TVT34391 390 (351~429) 250 320 650 300 40 20 1.4 690 2800 5.7
TVT34431 430 (387~473) 275 350 710 300 40 20 1.4 770 2600 5.6
TVT34471 470 (423~517) 300 385 775 300 40 20 1.4 835 2400 5.8
TVT34511 510 (459~561) 320 410 845 300 40 20 1.4 900 2300 6.0
TVT34561 560 (504~616) 350 450 930 300 40 20 1.4 995 2000 6.2
TVT34621 620 (558~682) 395 510 1020 300 40 20 1.4 1120 1800 6.5
TVT34681 680 (612~748) 420 560 1120 300 40 20 1.4 1275 1700 6.8
TVT34751 750 (675~825) 465 615 1235 300 40 20 1.4 1400 1600 7.1
TVT34781 780 (702~858) 485 640 1290 300 40 20 1.4 1445 1500 6.0
TVT34821 820 (738~902) 510 670 1355 300 40 20 1.4 1205 1400 6.2
TVT34911 910 (819~1001) 550 745 1500 300 40 20 1.4 1345 1300 6.5
TVT34951 950 (855~1045) 575 765 1570 300 40 20 1.4 1400 1200 6.6
TVT34102 1000 (900~1100) 625 825 1650 300 40 20 1.4 1470 1150 6.8
TVT34112 1100 (990~1210) 680 895 1815 300 40 20 1.4 1610 1050 7.1
TVT34122 1200 (1080~1320) 750 980 2000 300 40 20 1.4 1750 950
13.5
7.5
Note:
*1: Nominal discharge current is the specification defined in UL 1449 3rd and use 8/20μs current waveform to test the varistor.
Metal Oxide Varistor：TVT Series
Thermally Protected Varistor Series
THINKING ELECTRONIC INDUSTRIAL Co., LTD. 84 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
Safety Approvals
is the code for Two -Terminal or Three -Terminal type.
Agency Agency
Part No.
UL1449 3rd & cUL:
E314979 J 50179371 IEC60950-1 2nd
Annex Q
Part No.
UL1449 3rd & cUL:
E314979 J 50179389 IEC60950-1 2nd
Annex Q
TVT14201- TVT20201-
TVT14221- TVT20221-
TVT14241- TVT20241-
TVT14271- TVT20271-
TVT14301- TVT20301-
TVT14331- TVT20331-
TVT14361- TVT20361-
TVT14391- TVT20391-
TVT14431- TVT20431-
TVT14471- TVT20471-
TVT14511- TVT20511-
TVT14561- TVT20561-
TVT14621- TVT20621-
TVT14681- TVT20681-
TVT14751- TVT20751-
TVT14781- TVT20781-
TVT14821- TVT20821-
TVT14911- TVT20911-
TVT14951- TVT20951-
TVT14102- TVT20102-
TVT14112- TVT20112-
TVT14122- TVT20122-
Metal Oxide Varistor：TVT Series
Thermally Protected Varistor Series
THINKING ELECTRONIC INDUSTRIAL Co., LTD. 85 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
is the code for Two -Terminal or Three -Terminal type.
Agency Agency Agency
Part No.
J 50226398
Part No.
J 50226398
Part No.
J 50226398
TVT25201- TVT32201- TVT34201-
TVT25221- TVT32221- TVT34221-
TVT25241- TVT32241- TVT34241-
TVT25271- TVT32271- TVT34271-
TVT25301- TVT32301- TVT34301-
TVT25331- TVT32331- TVT34331-
TVT25361- TVT32361- TVT34361-
TVT25391- TVT32391- TVT34391-
TVT25431- TVT32431- TVT34431-
TVT25471- TVT32471- TVT34471-
TVT25511- TVT32511- TVT34511-
TVT25561- TVT32561- TVT34561-
TVT25621- TVT32621- TVT34621-
TVT25681- TVT32681- TVT34681-
TVT25751- TVT32751- TVT34751-
TVT25781- TVT32781- TVT34781-
TVT25821- TVT32821- TVT34821-
TVT25911- TVT32911- TVT34911-
TVT25951- TVT32951- TVT34951-
TVT25102- TVT32102- TVT34102-
TVT25112- TVT32112- TVT34112-
TVT25122- TVT32122- TVT34122-
Metal Oxide Varistor：TVT Series
Thermally Protected Varistor Series
THINKING ELECTRONIC INDUSTRIAL Co., LTD. 86 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
Power Derating Curve Surge Current Standard Waveform
Lead Configuration
Two -Terminal Type Three -Terminal Type
Thermal
Fuse
Element
MOV
2
1
3
12 3
Monitor
Lead
2
Thermal
Fuse
Element
1
MOV
3
LCT=-40 LUT=85 110
Ambient temperature (℃)
Max. Power Rating (%)
100
Time
0
10
50
100
90
Tr
Tr
Td
Td
Current (%)
Example:
8/20 s: Tr= 8 s
Td = 20s
Imax
Leading
edge Trailing
edge
Example:
8/20s: Tr= 8s
Td= 20s
Time
0
10
50
100
90
Tr
Tr
Td
Td
Current (%)
Example:
8/20 s: Tr= 8 s
Td = 20s
Imax
Leading
edge Trailing
edge
Example:
8/20s: Tr= 8s
Td= 20s
Metal Oxide Varistor：TVT Series
Thermally Protected Varistor Series
THINKING ELECTRONIC INDUSTRIAL Co., LTD. 87 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
Typical Application Circuit
Signal Phase: Line to Line Signal Phase: Line to Line & Line to Ground
Three Phase: Line to Line & Line to Ground
Current Fuse
Thermally
Varistor
TVT Series
Monitor Lead
LED
R
MOV
Thermal
fuse
element Circuit to be
protected
Power
Input
L
N
Metal Oxide Varistor：TVT Series
Thermally Protected Varistor Series
THINKING ELECTRONIC INDUSTRIAL Co., LTD. 88 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
Max. Surge Current Derating Curves
Impulse Width (μs)
TVT32201~TVT32122
TVT25201 ~ TVT25122
TVT14201 ~ TVT14112
0.1
1
10
100
1000
10000
100000
10 100 1000 10000
Td(us)
Max. Surge Current (A)
10
6
10
5
10
4
10
3
10
2
2
10
1
Td (μs)
TVT20201 ~ TVT20112
0.1
1
10
100
1000
10000
100000
10 100 1000 10000
Td(us)
Max. Surge Current (A)
106
105
104
103
102
2
10
1
Td (μs)
0.1
1
10
100
1000
10000
100000
10 100 1000 10000
Td(us)
Max. Surge Current (A)
10
6
10
5
10
4
10
3
10
2
2
10
1
Td (μs)
0.1
1
10
100
1000
10000
100000
10 100 1000 10000
Td(us)
Max. Surge Current (A)
10
6
10
5
10
4
10
3
10
2
2
10
1
Td (μs)
Metal Oxide Varistor：TVT Series
Thermally Protected Varistor Series
THINKING ELECTRONIC INDUSTRIAL Co., LTD. 89 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
Max. Surge Current Derating Curves
Max. Leakage Current and Max. Clamping Voltage Curves
Max. Leakage Current and Max. Clamping Voltage Curves (TVT14201 ~ TVT14122)
0.1
1
10
100
1000
10000
100000
10 100 1000 10000
Td(us)
Max. Surge Current (A)
10
6
10
5
10
4
10
3
10
2
2
10
1
TVT34201~TVT34122
Td (μs)
10
100
1000
10000
Current(A)
Voltage(V)
TVT14122
TVT14112
TVT14102
TVT14951
TVT14911
TVT14821
TVT14781
TVT14751
TVT14681
TVT14621
TVT14561
TVT14511
TVT14471
TVT14431
TVT14391
TVT14361
TVT14331
TVT14301
TVT14271
TVT14241
TVT14221
TVT14201
Max. Leakage Current
Max. Clamping Voltage
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
110
1
10
2
10
3
10
4
10
5
Metal Oxide Varistor：TVT Series
Thermally Protected Varistor Series
THINKING ELECTRONIC INDUSTRIAL Co., LTD. 90 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
Max. Leakage Current and Max. Clamping Voltage Curves
Max. Leakage Current and Max. Clamping Voltage Curves (TVT25201 ~ TVT25122)
Max. Leakage Current and Max. Clamping Voltage Curves (TVT20201 ~ TVT20122)
10
100
1000
10000
Current(A)
Voltage(V)
Max. Leakage Current
Max. Clamping Voltage
10-6 10-5 10-4 10-3 10-2 10-1 1101102103104105
TVT20122
TVT20112
TVT20102
TVT20951
TVT20911
TVT20821
TVT20781
TVT20751
TVT20681
TVT20621
TVT20561
TVT20511
TVT20471
TVT20431
TVT20391
TVT20361
TVT20331
TVT20301
TVT20271
TVT20241
TVT20221
TVT20201
10
100
1000
10000
Current(A)
Voltage(V)
Max. Leakage Current
Max. Clamping Voltage
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
110
1
10
2
10
3
10
4
10
5
TVT25122
TVT25112
TVT25102
TVT25951
TVT25911
TVT25821
TVT25781
TVT25751
TVT25681
TVT25621
TVT25561
TVT25511
TVT25471
TVT25431
TVT25391
TVT25361
TVT25331
TVT25301
TVT25271
TVT25241
TVT25221
TVT25201
Metal Oxide Varistor：TVT Series
Thermally Protected Varistor Series
THINKING ELECTRONIC INDUSTRIAL Co., LTD. 91 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
Max. Leakage Current and Max. Clamping Voltage Curves
Max. Leakage Current and Max. Clamping Voltage Curves (TVT32201 ~ TVT32122)
Max. Leakage Current and Max. Clamping Voltage Curves ( TVT34201 ~ TVT34122 )
10
100
1000
10000
Current(A)
Voltage(V)
Max. Leakage Current
Max. Clamping Voltage
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
110
1
10
2
10
3
10
4
10
5
TVT32112
TVT32102
TVT32951
TVT32911
TVT32821
TVT32781
TVT32751
TVT32681
TVT32621
TVT32561
TVT32511
TVT32471
TVT32431
TVT32391
TVT32361
TVT32331
TVT32301
TVT32271
TVT32241
TVT32221
TVT32201
10
100
1000
10000
Current(A)
Voltage(V)
TVT34112
TVT34102
TVT34951
TVT34911
TVT34821
TVT34781
TVT34751
TVT34681
TVT34621
TVT34561
TVT34511
TVT34471
TVT34431
TVT34391
TVT34361
TVT34331
TVT34301
TVT34271
TVT34241
TVT34221
TVT34201
Max. Leakage Current
Max. Clamping Voltage
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
110
1
10
2
10
3
10
4
10
5
10
6
Metal Oxide Varistor：TVT Series
Thermally Protected Varistor Series
THINKING ELECTRONIC INDUSTRIAL Co., LTD. 92 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
Soldering Recommendation
Wave Soldering Profile
Recommended Reworking Conditions With Soldering Iron
Item Conditions
Temperature of Soldering Iron-tip 360℃ (max.)
Soldering Time 3 sec (max.)
Distance from Varistor 2 mm (min.)
Temperature
130±20℃
260℃ max.
Tamb
Cooling Soldering Preheating
Time
30~90 sec. ＜1 sec. ＜10 sec.
Note 1
Note 2 Note 3
Note 1: (1~3℃)/sec
Note 2: Approx. 200℃/sec
Note 3: 5℃/sec. (Max)
Metal Oxide Varistor：TVT Series
Thermally Protected Varistor Series
THINKING ELECTRONIC INDUSTRIAL Co., LTD. 93 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
Reliability
Item Standard Test Conditions / Methods Specifications
Tensile
Strength of
Terminals
IEC 60068-2-21
Gradually apply the specified force and keep the unit fixed for 10±1 sec.
Terminal diameter Terminal
cross-sectional Force
(mm) area (mm2) (Kg)
0.5<d≦0.8 0.2＜S≦0.5 1.0
0.8<d≦1.25 0.5＜S≦1.2 2.0
1.25<d 1.2<S 4.0
│V
△1mA/V1mA│≦5%
No visible damage
Bending
Strength of
Terminals
IEC 60068-2-21
Hold specimen and apply the force specified below to each lead. Bend the
specimen to 90°, and then return to the original position. Repeat the
procedure in the opposite direction.
Terminal diameter Terminal
cross-sectional Force
(mm) area (mm2) (Kg)
0.5<d≦0.8 0.2＜S≦0.5 0.5
0.8<d≦1.25 0.5＜S≦1.2 1.0
1.25<d 1.2<S 2.0
│△V1mA /V1mA│5%≦
No visible damage
Vibration IEC 61051-1
Frequency range: 10 ~ 55 Hz
Amplitude: 0.75mm or 98 m/s2
Direction: 3 mutually perpendicular directions, 2 hrs each.
│△V1mA /V1mA│5%≦
No visible damage
Solderability IEC 60068-2-20 245±3℃ , 3±0.3 sec
At least 95% of terminal
electrode is covered by
new solder
Resistance to
Soldering Heat IEC 60068-2-20 260±3℃ , 10±1 sec │△V1mA /V1mA│5%≦
No visible damage
High
Temperature
Storage
IEC 60068-2-2 110±5℃ x 1000± 24 hrs │△V1mA /V1mA│5%≦
No visible damage
Damp Heat,
Steady State IEC 60068-2-78 a. 40±2 , 90 ~ 95 % RH, 1344 hrs℃
b. 40±2 ,
℃90 ~ 95 % RH, at 10%Vdc, 1344 hrs
│△V1mA /V1mA│≦10%
No visible damage
Insulation Resistance
≧100MΩ
Rapid Change of
Temperature IEC 60068-2-14
The conditions shown below shall be repeated 5 cycles
Step Temperature (℃) Period (minutes)
1 -40±3 30±3
2 Room temperature 5±3
3 85±2 30±3
4 Room temperature 5±3
│△V1mA /V1mA│5%≦
No visible damage
Endurance at
Upper Category
Temperature
IEC 61051-1 85±2℃, 1000±24 hrs at VDC or Vrms (Max. Continuous Voltage) │△V1mA /V1mA│≦10%
No visible damage
8/20μs
Surge Life IEC 61051-1 8/20μs waveform, 10 surge currents, unipolar, interval 30 secs,
amplitude corresponding to max. surge current derating curves for 20μs.
│△V1mA /V1mA│≦10%
No visible damage
10/1000μs Surge
Life IEC 61051-1 10/1000μs waveform, 10 surge currents, unipolar, interval 2 mins,
amplitude corresponding to max. surge current derating curves for 1000μs.
│△V1mA /V1mA│≦10%
No visible damage
Operating Duty
Cycle Test UL 1449 3rd
6KV/3KA 1.2/50μs+8/20μs combination waveform with Vac(@ Deg 90)
for 15 times. Interval time between tests is 60 secs.
(For TVT14 and TVT20 series test only)
∣△Vp /Vp∣≦10 %
No visible damage
Nominal
Discharge
Current Test
UL 1449 3rd
3KA 8/20μs waveform with Vac (@ Deg 90) for 15 times.
Interval time between tests is 60 secs.
(For TVT25, TVT32, and TVT34 series test only)
∣△Vp /Vp∣≦10 %
No visible damage
Metal Oxide Varistor：TVT Series
Thermally Protected Varistor Series
THINKING ELECTRONIC INDUSTRIAL Co., LTD. 94 www.thinking.com.tw 2012.08
All specifications are subject to change without notice.
Reliability
Item Standard Test Conditions / Methods Specifications
Limited Current
Abnormal
Overvoltage Test
UL 1449 3rd
Test voltage: refer to UL 1449 3rd Table 39.1
Short current condition:
Series Current (A)
TVT14 0.125A, 0.5A, 2.5A, 5A
TVT20, 25, 32, 34 0.5A, 2.5A, 5A, 10A
Test voltage is applied with each short circuit current respectively across the
varistor. The power supply is to incorporate a series variable resistor that can
be adjusted to obtain the short-circuit current.
No flame
Voltage Proof IEC 61051-1 Metal balls method, 2500 Vac 1 min No visible damage
Varistor
Voltage Temp.
Coefficient
Specification
Standard
,
-0.05≦TC≦0.05
(%/℃)
Packaging
Bulk Packing
Series Quantity (pcs/bag)
TVT14 50
TVT20 25
TVT25 25
TVT32 10
Box Packing (For potting structure)
Series Quantity (pcs/ box)
TVT**201~431 50
TVT**471~112 20
Note: ** is dimension for 25, 32, and 34mm.
Warehouse Storage Conditions of Products
Storage Conditions:
1. Storage temperature: -10℃~+40℃
2. Relative humidity: ≦75%RH
3. Keep away from corrosive atmosphere and sunlight.
Period of Storage: 1 year
)/%(%100
60
1
25@1
25@185@1 C
V
VV
mA
mAmA
℃
℃℃ )/%(%100
65
1
25@1
25@140@1 C
V
VV
mA
mAmA
℃
℃℃
(Unit: mm)
