STMicroelectronics Transient Suppression Devices 2,400+

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Part RoHS Manufacturer Diode Type Terminal Position Terminal Form No. of Terminals Surface Mount Package Shape Package Body Material Working Test Current Config Nominal Reference Voltage Maximum Output Current Maximum Non Repetitive Peak Reverse Power Dissipation Maximum Forward Voltage (VF) Nominal Breakdown Voltage Maximum Reverse Recovery Time Technology Maximum Reverse Current No. of Elements Reverse Test Voltage Package Style (Meter) Sub-Category Maximum Voltage Tolerance Maximum Repetitive Peak Reverse Voltage Maximum Operating Temperature Maximum Dynamic Impedance Minimum Operating Temperature Terminal Finish JESD-30 Code Moisture Sensitivity Level (MSL) Polarity Case Connection Qualification Maximum Power Dissipation Minimum Diode Capacitance Additional Features JEDEC-95 Code Maximum Clamping Voltage Minimum Breakdown Voltage Maximum Non Repetitive Peak Forward Current JESD-609 Code Maximum Time At Peak Reflow Temperature (s) Peak Reflow Temperature (C) Diode Element Material Maximum Breakdown Voltage Reference Standard

SM4T7V5C

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

400 W

7.5 V

AVALANCHE

500 uA

1

SMALL OUTLINE

Transient Suppressors

6.1 V

150 Cel

R-PDSO-C2

BIDIRECTIONAL

Not Qualified

5 W

1550 pF

14.5 V

7.13 V

SILICON

8.25 V

BZW04-299RL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

400 W

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

299 V

175 Cel

MATTE TIN

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

80 pF

DO-15

618 V

332 V

e3

SILICON

UL RECOGNIZED

BZW06-26

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

30 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

26 V

175 Cel

MATTE TIN

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

1075 pF

DO-15

53.5 V

28.5 V

e3

SILICON

UL RECOGNIZED

1.5KE160ARL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

1500 W

160 V

AVALANCHE

5 uA

1

LONG FORM

175 Cel

TIN

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

5 W

800 pF

282 V

152 V

e3

SILICON

168 V

UL RECOGNIZED

P6KE13PRL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

13 V

AVALANCHE

5 uA

1

LONG FORM

175 Cel

-65 Cel

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

5 W

2150 pF

23.6 V

12.4 V

SILICON

14.3 V

UL RECOGNIZED

SM6T220

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

600 W

220 V

AVALANCHE

5 uA

1

SMALL OUTLINE

Transient Suppressors

178 V

150 Cel

-55 Cel

MATTE TIN

R-PDSO-C2

1

UNIDIRECTIONAL

Not Qualified

4 W

330 pF

388 V

209 V

e3

SILICON

242 V

UL RECOGNIZED

SM4T7V5A

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

400 W

7.5 V

AVALANCHE

500 uA

1

SMALL OUTLINE

Transient Suppressors

6.4 V

150 Cel

R-PDSO-C2

UNIDIRECTIONAL

Not Qualified

5 W

3100 pF

14.5 V

7.13 V

SILICON

7.88 V

BZW04P94B

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

400 W

110 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

94 V

175 Cel

MATTE TIN

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

92.5 pF

195 V

105 V

e3

SILICON

121 V

UL RECOGNIZED

BZW06P44B

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

51 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

44 V

175 Cel

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

375 pF

91 V

48.5 V

SILICON

56.1 V

UL RECOGNIZED

ITA6V1M3

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

GULL WING

20

YES

RECTANGULAR

PLASTIC/EPOXY

COMMON ANODE, 18 ELEMENTS

AVALANCHE

18

SMALL OUTLINE

Transient Suppressors

5 V

TIN LEAD

R-PDSO-G20

UNIDIRECTIONAL

Not Qualified

12 V

e0

SILICON

6.1 V

BZW04-48BRL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

400 W

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

48 V

175 Cel

MATTE TIN

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

160 pF

DO-15

100 V

53.2 V

e3

SILICON

UL RECOGNIZED

BZW06-5V8B

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

6.8 V

AVALANCHE

1000 uA

1

LONG FORM

Transient Suppressors

5.8 V

175 Cel

MATTE TIN

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

2000 pF

DO-15

13.4 V

6.45 V

e3

SILICON

UL RECOGNIZED

BZW06P17B

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

20 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

17 V

175 Cel

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

750 pF

36.1 V

19 V

SILICON

22 V

UL RECOGNIZED

SM6T6V220CA

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

600 W

AVALANCHE

1

SMALL OUTLINE

150 Cel

-55 Cel

R-PDSO-C2

BIDIRECTIONAL

Not Qualified

5 W

DO-214AA

190 V

SILICON

210 V

UL RECOGNIZED

BZW04P78BRL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

400 W

91 V

AVALANCHE

5 uA

1

LONG FORM

175 Cel

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

105 pF

162 V

86.5 V

SILICON

100 V

UL RECOGNIZED

BZW06-13BRL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

13 V

175 Cel

MATTE TIN

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

950 pF

DO-15

27.2 V

14.3 V

e3

SILICON

UL RECOGNIZED

P6KE160PRL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

160 V

AVALANCHE

5 uA

1

LONG FORM

175 Cel

-65 Cel

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

5 W

380 pF

282 V

152 V

SILICON

176 V

UL RECOGNIZED

BZW04P273BRL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

400 W

320 V

AVALANCHE

5 uA

1

LONG FORM

175 Cel

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

42.5 pF

564 V

304 V

SILICON

352 V

UL RECOGNIZED

BZW04P78

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

400 W

91 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

78 V

175 Cel

MATTE TIN

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

210 pF

162 V

86.5 V

e3

SILICON

100 V

UL RECOGNIZED

SM4T6V8C

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

400 W

6.8 V

AVALANCHE

1000 uA

1

SMALL OUTLINE

Transient Suppressors

5.5 V

150 Cel

R-PDSO-C2

BIDIRECTIONAL

Not Qualified

5 W

1750 pF

13.4 V

SILICON

1.5KE150CARL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

1500 W

150 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

128 V

175 Cel

Matte Tin (Sn)

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

5 W

425 pF

DO-201

265 V

143 V

e3

SILICON

158 V

UL RECOGNIZED

SM15T10

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1500 W

10 V

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

8.1 V

150 Cel

MATTE TIN

R-PDSO-C2

UNIDIRECTIONAL

Not Qualified

5 W

15 V

9.5 V

e3

SILICON

11 V

UL RECOGNIZED

SM4T10C

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

400 W

10 V

AVALANCHE

10 uA

1

SMALL OUTLINE

Transient Suppressors

8.1 V

150 Cel

R-PDSO-C2

BIDIRECTIONAL

Not Qualified

5 W

1000 pF

18.6 V

9.5 V

SILICON

11 V

BZW04P17BRL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

400 W

20 V

AVALANCHE

5 uA

1

LONG FORM

175 Cel

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

425 pF

36.1 V

19 V

SILICON

22 V

UL RECOGNIZED

1N5647

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

NO

39 V

Transient Suppressors

32 V

175 Cel

TIN LEAD

UNIDIRECTIONAL

56.4 V

e0

HSP031-1BM6

STMicroelectronics

BZW06-15B

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

18 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

15 V

175 Cel

MATTE TIN

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

800 pF

DO-15

32.5 V

17.1 V

e3

SILICON

UL RECOGNIZED

P6KE22PRL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

22 V

AVALANCHE

5 uA

1

LONG FORM

175 Cel

-65 Cel

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

5 W

1350 pF

39.3 V

20.9 V

SILICON

24.2 V

UL RECOGNIZED

P6KE27CP

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

27 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

23 V

175 Cel

Tin/Lead (Sn/Pb)

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

5 W

575 pF

48.3 V

25.7 V

e0

SILICON

29.7 V

UL RECOGNIZED

BZW06P111RL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

130 V

AVALANCHE

5 uA

1

LONG FORM

175 Cel

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

420 pF

230 V

124 V

SILICON

143 V

UL RECOGNIZED

BZW06-9V4RL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

11 V

AVALANCHE

5 uA

1

LONG FORM

175 Cel

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

2500 pF

20.3 V

10.5 V

SILICON

11.6 V

UL RECOGNIZED

BZW50-10

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

5000 W

12 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

10 V

175 Cel

MATTE TIN

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

6.5 W

24000 pF

23.4 V

11.1 V

e3

SILICON

UL RECOGNIZED

BZW04P48BRL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

400 W

56 V

AVALANCHE

5 uA

1

LONG FORM

175 Cel

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

160 pF

100 V

53.2 V

SILICON

61.6 V

UL RECOGNIZED

1N5640A

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

UNSPECIFIED

SINGLE

1500 W

20 V

AVALANCHE

1

LONG FORM

Transient Suppressors

17 V

TIN LEAD

O-XALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

DO-13

27.7 V

19 V

e0

SILICON

21 V

1N5646

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

NO

1500 W

36 V

1

Transient Suppressors

29 V

175 Cel

TIN LEAD

UNIDIRECTIONAL

DO-13

52 V

e0

SILICON

BZW06P64RL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

75 V

AVALANCHE

5 uA

1

LONG FORM

175 Cel

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

575 pF

134 V

71.3 V

SILICON

82.5 V

UL RECOGNIZED

1.5KE200CP

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

1500 W

200 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

171 V

175 Cel

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

5 W

337.5 pF

353 V

190 V

SILICON

220 V

UL RECOGNIZED

BZW06-188B

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

220 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

188 V

175 Cel

MATTE TIN

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

165 pF

DO-15

388 V

209 V

e3

SILICON

UL RECOGNIZED

1.5KE8V2P

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

1500 W

8.2 V

AVALANCHE

200 uA

1

LONG FORM

Transient Suppressors

7 V

175 Cel

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

5 W

8000 pF

15.5 V

7.79 V

SILICON

9.02 V

UL RECOGNIZED

ESDALC5-1BT2Y

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

BOTTOM

NO LEAD

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

150 W

8 V

AVALANCHE

.06 uA

1

CHIP CARRIER

125 Cel

-50 Cel

R-PBCC-N2

1

BIDIRECTIONAL

12.5 V

5.8 V

SILICON

11 V

AEC-Q101; IEC-61000-4-2; ISO 7637-3; ISO 10605

1.5KE10CP

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

1500 W

10 V

AVALANCHE

10 uA

1

LONG FORM

Transient Suppressors

8.6 V

175 Cel

Tin/Lead (Sn/Pb)

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

5 W

3500 pF

18.6 V

9.5 V

e0

SILICON

11 V

UL RECOGNIZED

BZW06-40

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

47 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

40 V

175 Cel

MATTE TIN

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

800 pF

DO-15

84 V

44.7 V

e3

SILICON

UL RECOGNIZED

SM15T150C

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1500 W

150 V

AVALANCHE

1

128 V

SMALL OUTLINE

Transient Suppressors

128 V

150 Cel

-65 Cel

MATTE TIN

R-PDSO-C2

BIDIRECTIONAL

Not Qualified

5 W

DO-214AB

207 V

143 V

e3

SILICON

165 V

UL RECOGNIZED

P6KE30P

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

30 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

26 V

175 Cel

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

5 W

1075 pF

53.5 V

28.5 V

SILICON

33 V

UL RECOGNIZED

P6KE82CPRL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

82 V

AVALANCHE

5 uA

1

LONG FORM

175 Cel

-65 Cel

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

5 W

275 pF

146 V

77.9 V

SILICON

90.2 V

UL RECOGNIZED

1.5KE440CP

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

1500 W

440 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

376 V

175 Cel

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

5 W

180 pF

776 V

418 V

SILICON

484 V

UL RECOGNIZED

BZW06P78B

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

91 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

78 V

175 Cel

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

262.5 pF

162 V

86.5 V

SILICON

100 V

UL RECOGNIZED

BZW06-256RL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

256 V

175 Cel

MATTE TIN

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

290 pF

DO-15

529 V

285 V

e3

SILICON

UL RECOGNIZED

Transient Suppression Devices

Transient suppression devices are electronic components used to protect electronic circuits from voltage spikes and surges that can damage or destroy sensitive components. These voltage transients can be caused by lightning strikes, power surges, electrostatic discharge, or electromagnetic interference.

Transient suppression devices work by providing a low-impedance path for the transient current to flow to ground, diverting the energy away from the sensitive components. There are several types of transient suppression devices, including:

1. Varistors: Varistors are voltage-dependent resistors that provide a high resistance under normal operating conditions, but a low resistance under high-voltage transient conditions. They are commonly used in power supplies, motor controls, and lighting systems.

2. Metal oxide semiconductor field-effect transistors (MOSFETs): MOSFETs are used as voltage clamps to limit the voltage to a safe level during transient events. They are commonly used in automotive electronics and power supplies.

3. TVS diodes: TVS (transient voltage suppressor) diodes are used to protect electronic circuits from voltage spikes and surges by providing a low-impedance path to ground. They are commonly used in telecommunications, power supplies, and automotive electronics.

4. Gas discharge tubes: Gas discharge tubes (GDTs) are used to protect electronic circuits from high-voltage surges by ionizing a gas within the tube to provide a low-impedance path to ground. They are commonly used in telecommunications and power systems.

Transient suppression devices come in different package sizes and current ratings, depending on the application and the required performance. They can be integrated into a circuit board or mounted in a separate enclosure, depending on the application and the space available.