BIDIRECTIONAL VARISTORS
SCOTTSDALE DIVISION
MSV101A thru MSV101G
MSV201A thru MSV701A
WWW.Microsemi .COM MSV101A – 101G and
MSV201A – 701A
DESCRIPTION APPEARANCE
The MSV series consists of a matched set of silicon p-n junctions
configured for bidirectional application. They can be used in telephone
equipment, replacing copper-oxide varistors, fractional voltage regulators,
negative-temperature-coefficient resistors, signal limiters and expanders.
They are ideally suited for meter/galvanometer protection, wave shaping,
threshold limiters and zener diode compensation.
The MSV varistor uses two or more forward biased matched silicon diodes
in anti-parallel legs in a two-electrode device configuration. It provides a
voltage-dependent nonlinear resistance that drops markedly as the applied
voltage is increased similar to a TVS except it offers lower voltage features.
MSV devices are designed for controlled protection at various current
levels and are rated at various peak pulse currents.
These varistors are supplied in Microsemi’s cost-effective, highly reliable,
molded axial-leaded package. Non-standard voltages are also available.
Devices in this series with VC2 clamping are rated to U.L.497B
requirements. (See table).
DO-201AA
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
FEATURES APPLICATIONS / BENEFITS
• Bidirectional low voltage clamping 1.5 V to 9.0 V
using forward biased diodes in series and antiparallel
• Options for screening in accordance with MIL-PRF-
19500 for JAN, JANTX, JANTXV, and JANS are
available by adding MQ, MX, MV, or MSP prefixes
respectively to part numbers
• Moisture classification is Level 1 with no dry pack
required per IPC/JEDEC J-STD-020B
• Negative temperature coefficient (see Figure 2)
• Low voltage clamping protection well be low
conventional TVS components
• Telephone equipment protection
• Protects from switching transients
• Protection from ESD and EFT per IEC 61000-4-2
and IEC61000-4-4
• Secondary lightning protection
• Clamping voltages also specified per U.L. 497B with
100 V/µs rise time
MAXIMUM RATINGS MECHANICAL AND PACKAGING
• Steady State Power: 1.0 Watt at 50oC.
• Operating and Storage temperatures: -65oC to
+150oC.
• Surge: 30 Amps, 8.4 ms @ 25oC.
• Pulse: 1.0 ms @ 25oC for VC1 clamping*.
• tclamping (0 volts to VBR min.): Less than 1x10-8
seconds (theoretical)
• Solder temperatures: 260oC for 10 s (maximum)
• CASE: Void free molded thermosetting epoxy body
meeting UL94V-0
• FINISH: Tin-lead plated copper readily solderable
per MIL-STD-750, method 2026
• POLARITY: Not marked for Bidirectional
• MARKING: Part Number
• TAPE & REEL option: Standard per EIA-296 (add
“TR” suffix to part number)
• WEIGHT: 1.5 gram (approx.)
• See package dimensions on last page
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
Copyright 2003
12-23-2003 REV A
BIDIRECTIONAL VARISTORS
SCOTTSDALE DIVISION
MSV101A thru MSV101G
MSV201A thru MSV701A
WWW.Microsemi .COM MSV101A – 101G and
MSV201A – 701A
ELECTRICAL CHARACTERISTICS
MICROSEMI
PART
NUMBER
VBR @ IBR
V / µA
Minimum
VBR @ IBR
V / mA
Maximum
VC1 @ IPP*
V / A
Maximum
CJ @ 0 VOLTS
f = 1 MHz
pF
Maximum
VC2**
V
Maximum
MSV101A
MSV101B
MSV101C
.05 / 10
.14 / 100
.05 / 10
.14 / 100
.05 / 10
.14 / 100
-
.51 / 1,000
-
.66 / 1,000
-
.50 / 1,000
-
-
-
-
-
-
200
200
200
-
-
-
MSV101D
MSV101E
MSV101F
.43 / 100
.56 / 1,000
.43 / 100
.56 / 1,000
.20 / 10
.56 / 1,000
.72 / 10
-
.90 / 100
-
.90 / 100
-
1.5 / 50
-
1.5 / 50
-
1.5 / 50
-
1500
1500
1500
3.8
3.8
3.8
MSV101G
MSV201A
MSV301A
.20 / 10
.56 / 1,000
.86 / 100
1.10 / 1,000
-
1.60 / 1,000
.90 / 100
-
1.48 / 10
-
-
2.40 / 50
1.5 / 50
-
3.0 / 45
-
4.5 / 40
-
1500
750
500
3.8
4.4
5.4
MSV401A
MSV401B
MSV401C
1.72 / 100
2.20 / 1,000
1.30 / 10
2.20 / 1,000
-
2.20 / 1,000
2.92 / 10
-
2.92 / 10
-
-
3.10 / 50
4.5 / 35
-
5.5 / 35
-
5.5 / 35
-
400
400
400
6.4
6.4
6.4
MSV501A
MSV601A
MSV701A
1.70 / 10
2.80 / 1,000
1.30 / 10
2.20 / 1,000
-
2.20 / 1,000
5.00 / 100
-
4.60 / 100
-
5.00 / 5.0
-
6.5 / 30
-
8.0 / 30
-
9.0 / 30
-
300
250
220
7.4
8.4
9.4
* Conditions: Pulse is 10/1000 µs wave shape. ** Per U.L.497B with 100 V/µs rise time.
- 10 µs rise, 1000 µs triangle fall to ½ amplitude.
- Voltage limits measured at IPP peak pulse current.
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 2
Copyright 2003
12-23-2003 REV A
BIDIRECTIONAL VARISTORS
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 3
Copyright 2003
12-23-2003 REV A
WWW.Microsemi .COM
SCOTTSDALE DIVISION
MSV101A thru MSV101G
MSV201A thru MSV701A
MSV101A – 101G and
MSV201A – 701A
– 101G and
MSV201A – 701A
GRAPHS
FIGURE 2
Temperature Coefficient (TC)
of Voltage vs. Current †
PACKAGE DIMENSIONS &
SCHEMATIC
SCHEMATIC
FIGURE 1
Typical Current vs. Voltage †
† NOTE: In Figures 1 & 2, multiply applicable VBR voltage or
TC by 2 for MSV201, by 3 for MSV301, by 4 for MSV401, by 5
for MSV501, by 6 for MSV601, and by 7 for MSV701.
M d SV101A – 101G an
MSV201A – 701A
