Transient Suppression Devices

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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

RSA12LTE25

ROHM

TRANS VOLTAGE SUPPRESSOR DIODE

YES

14.7 V

Transient Suppressors

UNIDIRECTIONAL

19.5 V

1,5KE200A

Semikron International

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

Matte Tin (Sn)

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

5 W

675 pF

UL RECOGNIZED

DO-201

353 V

190 V

e3

NOT SPECIFIED

NOT SPECIFIED

SILICON

210 V

UL RECOGNIZED

1,5KE220A

Semikron International

1,5KE250A

Semikron International

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

1500 W

250 V

AVALANCHE

1

LONG FORM

Transient Suppressors

214 V

175 Cel

-55 Cel

MATTE TIN

O-PALF-W2

1

UNIDIRECTIONAL

ISOLATED

Not Qualified

6.5 W

EXCELLENT CLAMPING CAPABILITY

DO-201

344 V

237 V

e3

10

265

SILICON

263 V

UL RECOGNIZED

1,5KE400A

Semikron International

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

1500 W

400 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

342 V

175 Cel

Matte Tin (Sn)

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

5 W

390 pF

UL RECOGNIZED

DO-201

706 V

380 V

e3

NOT SPECIFIED

NOT SPECIFIED

SILICON

420 V

UL RECOGNIZED

1,5KE440A

Semikron International

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

1500 W

440 V

AVALANCHE

1

LONG FORM

Transient Suppressors

376 V

175 Cel

-55 Cel

MATTE TIN

O-PALF-W2

1

UNIDIRECTIONAL

ISOLATED

Not Qualified

6.5 W

EXCELLENT CLAMPING CAPABILITY

DO-201

602 V

418 V

e3

10

265

SILICON

462 V

UL RECOGNIZED

1,5KE180CA

Semikron International

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

1500 W

180 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

154 V

175 Cel

Matte Tin (Sn) - annealed

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

5 W

362.5 pF

UL RECOGNIZED

DO-201

317 V

171 V

e3

NOT SPECIFIED

NOT SPECIFIED

SILICON

189 V

UL RECOGNIZED

1,5KE200CA

Semikron International

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

Matte Tin (Sn) - annealed

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

5 W

337.5 pF

UL RECOGNIZED

DO-201

353 V

190 V

e3

NOT SPECIFIED

NOT SPECIFIED

SILICON

210 V

UL RECOGNIZED

1,5KE220CA

Semikron International

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

1500 W

220 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

188 V

175 Cel

MATTE TIN

O-PALF-W2

1

BIDIRECTIONAL

ISOLATED

Not Qualified

5 W

312.5 pF

UL RECOGNIZED

DO-201

388 V

209 V

e3

40

260

SILICON

231 V

UL RECOGNIZED

1,5KE250CA

Semikron International

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

1500 W

250 V

AVALANCHE

1

LONG FORM

Transient Suppressors

214 V

175 Cel

-55 Cel

MATTE TIN

O-PALF-W2

1

BIDIRECTIONAL

ISOLATED

Not Qualified

6.5 W

EXCELLENT CLAMPING CAPABILITY

DO-201

344 V

237 V

e3

10

265

SILICON

263 V

UL RECOGNIZED

1,5KE300CA

Semikron International

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

1500 W

300 V

AVALANCHE

1

LONG FORM

Transient Suppressors

256 V

175 Cel

-55 Cel

MATTE TIN

O-PALF-W2

1

BIDIRECTIONAL

ISOLATED

Not Qualified

6.5 W

EXCELLENT CLAMPING CAPABILITY

DO-201

414 V

285 V

e3

10

265

SILICON

315 V

UL RECOGNIZED

1,5KE400CA

Semikron International

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

1500 W

400 V

AVALANCHE

1

LONG FORM

Transient Suppressors

342 V

175 Cel

-55 Cel

MATTE TIN

O-PALF-W2

1

BIDIRECTIONAL

ISOLATED

Not Qualified

6.5 W

EXCELLENT CLAMPING CAPABILITY

DO-201

548 V

380 V

e3

10

265

SILICON

420 V

UL RECOGNIZED

1,5KE440CA

Semikron International

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

Matte Tin (Sn)

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

5 W

180 pF

UL RECOGNIZED

DO-201

776 V

418 V

e3

NOT SPECIFIED

NOT SPECIFIED

SILICON

462 V

UL RECOGNIZED

CPDER24V

Comchip Technology

TRANS VOLTAGE SUPPRESSOR DIODE

YES

28 V

Transient Suppressors

BIDIRECTIONAL

47 V

10

260

PESD12VL2BT/S911,2

NXP Semiconductors

TRANS VOLTAGE SUPPRESSOR DIODE

YES

15.8 V

Transient Suppressors

12 V

BIDIRECTIONAL

37 V

IP4386CX4/P,315

NXP Semiconductors

TRANS VOLTAGE SUPPRESSOR DIODE

YES

16 V

Transient Suppressors

UNIDIRECTIONAL

20 V

IP4387CX4/P,315

NXP Semiconductors

TRANS VOLTAGE SUPPRESSOR DIODE

YES

10 V

Transient Suppressors

UNIDIRECTIONAL

13 V

IP4286CZ6-TBF,115

NXP Semiconductors

TRANS VOLTAGE SUPPRESSOR DIODE

YES

7.5 V

Transient Suppressors

Tin (Sn)

1

UNIDIRECTIONAL

e3

ESD5V3U2U-03F-E6327

Infineon Technologies

TRANS VOLTAGE SUPPRESSOR DIODE

YES

6 V

Transient Suppressors

5.3 V

1

UNIDIRECTIONAL

12 V

260

IP4285CZ6-TY,125

NXP Semiconductors

TRANS VOLTAGE SUPPRESSOR DIODE

YES

7.5 V

Transient Suppressors

UNIDIRECTIONAL

4.2 V

DF2B12M1CT(TPL3)

Toshiba

TRANS VOLTAGE SUPPRESSOR DIODE

YES

10 V

Transient Suppressors

8 V

BIDIRECTIONAL

18 V

BGF148E6327XTSA1

Infineon Technologies

TRANS VOLTAGE SUPPRESSOR DIODE

YES

6.5 V

Transient Suppressors

UNIDIRECTIONAL

9 V

IP4790CZ38,118

NXP Semiconductors

TRANS VOLTAGE SUPPRESSOR DIODE

YES

7.5 V

Transient Suppressors

UNIDIRECTIONAL

8 V

IP4790CZ38/1,118

NXP Semiconductors

TRANS VOLTAGE SUPPRESSOR DIODE

YES

7.5 V

Transient Suppressors

UNIDIRECTIONAL

8 V

SM15T47CAY

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

10000 W

47 V

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

40.2 V

150 Cel

-40 Cel

R-PDSO-C2

BIDIRECTIONAL

Not Qualified

DO-214AB

64.5 V

44.7 V

NOT SPECIFIED

NOT SPECIFIED

SILICON

SM6T22AY

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

600 W

22 V

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

18.8 V

150 Cel

-55 Cel

Matte Tin (Sn) - annealed

R-PDSO-C2

1

UNIDIRECTIONAL

Not Qualified

DO-214AA

39.3 V

20.9 V

e3

30

260

SILICON

23.1 V

AEC-Q101

SM6T24CAY

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

600 W

24 V

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

20.5 V

150 Cel

-55 Cel

Matte Tin (Sn) - annealed

R-PDSO-C2

1

BIDIRECTIONAL

Not Qualified

DO-214AA

42.8 V

22.8 V

e3

30

260

SILICON

25.2 V

AEC-Q101

SMDA24CDR2G

Onsemi

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

GULL WING

8

YES

RECTANGULAR

PLASTIC/EPOXY

SEPARATE, 4 ELEMENTS

300 W

AVALANCHE

4

SMALL OUTLINE

Transient Suppressors

24 V

150 Cel

-55 Cel

Tin (Sn)

R-PDSO-G8

1

BIDIRECTIONAL

Not Qualified

55 V

26.7 V

e3

NOT SPECIFIED

NOT SPECIFIED

SILICON

SP4061-04UTG

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

NO LEAD

10

YES

SQUARE

PLASTIC/EPOXY

SINGLE

300 W

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

2.5 V

150 Cel

S-PDSO-N10

UNIDIRECTIONAL

Not Qualified

LOW CAPACITANCE

11.5 V

40

260

SILICON

SP4062-04UTG

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

NO LEAD

10

YES

SQUARE

PLASTIC/EPOXY

SINGLE

300 W

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

3.3 V

150 Cel

MATTE TIN

S-PDSO-N10

UNIDIRECTIONAL

Not Qualified

LOW CAPACITANCE

11.5 V

e3

40

260

SILICON

SP3012-04UTG

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

NO LEAD

10

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

5 V

R-PDSO-N10

UNIDIRECTIONAL

ANODE

Not Qualified

7 V

40

260

SILICON

DESD6V8DLP-7B

Diodes Incorporated

TRANS VOLTAGE SUPPRESSOR DIODE

BOTTOM

NO LEAD

3

YES

RECTANGULAR

PLASTIC/EPOXY

COMMON ANODE, 2 ELEMENTS

70 W

6.8 V

AVALANCHE

2

CHIP CARRIER

Transient Suppressors

5.25 V

150 Cel

-55 Cel

NICKEL PALLADIUM GOLD

R-PBCC-N3

1

UNIDIRECTIONAL

ANODE

Not Qualified

.385 W

LOW CAPACITANCE

6.4 V

e4

30

260

SILICON

7.2 V

DESD6V8DLP-7

Diodes Incorporated

TRANS VOLTAGE SUPPRESSOR DIODE

BOTTOM

NO LEAD

3

YES

RECTANGULAR

PLASTIC/EPOXY

COMMON ANODE, 2 ELEMENTS

70 W

6.8 V

AVALANCHE

2

CHIP CARRIER

Transient Suppressors

5.25 V

150 Cel

-55 Cel

NICKEL PALLADIUM GOLD

R-PBCC-N3

1

UNIDIRECTIONAL

ANODE

Not Qualified

.385 W

LOW CAPACITANCE

6.4 V

e4

30

260

SILICON

7.2 V

SMA6J15CA-TP

Micro Commercial Components

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

600 W

17.6 V

AVALANCHE

1 uA

1

15 V

SMALL OUTLINE

15 V

175 Cel

-55 Cel

MATTE TIN

R-PDSO-C2

1

BIDIRECTIONAL

Not Qualified

3 W

PRSM-MIN

DO-214AC

24.4 V

16.7 V

e3

10

260

SILICON

18.5 V

SMA6J28CA-TP

Micro Commercial Components

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

600 W

32.75 V

AVALANCHE

1 uA

1

28 V

SMALL OUTLINE

28 V

175 Cel

-55 Cel

MATTE TIN

R-PDSO-C2

1

BIDIRECTIONAL

Not Qualified

3 W

PRSM-MIN

DO-214AC

45.4 V

31.1 V

e3

10

260

SILICON

34.4 V

SP4040-02BTG

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

GULL WING

8

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

2100 W

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

3.3 V

150 Cel

MATTE TIN

R-PDSO-G8

UNIDIRECTIONAL

Not Qualified

LOW CAPACITANCE

20 V

3.3 V

e3

40

260

SILICON

SMAJ160A-M3/5A

Vishay Intertechnology

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

300 W

3.5 V

187.5 V

AVALANCHE

1 uA

1

160 V

SMALL OUTLINE

Transient Suppressors

160 V

150 Cel

-55 Cel

Matte Tin (Sn)

R-PDSO-C2

1

UNIDIRECTIONAL

Not Qualified

3.3 W

EXCELLENT CLAMPING CAPABILITY

DO-214AC

259 V

178 V

e3

30

260

SILICON

197 V

UL RECOGNIZED

SMAJ160A-M3/61

Vishay Intertechnology

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

300 W

3.5 V

187.5 V

AVALANCHE

1 uA

1

160 V

SMALL OUTLINE

Transient Suppressors

160 V

150 Cel

-55 Cel

Matte Tin (Sn)

R-PDSO-C2

1

UNIDIRECTIONAL

Not Qualified

3.3 W

EXCELLENT CLAMPING CAPABILITY

DO-214AC

259 V

178 V

e3

30

260

SILICON

197 V

UL RECOGNIZED

SMAJ188CA-M3/5A

Vishay Intertechnology

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

300 W

220 V

AVALANCHE

1 uA

1

188 V

SMALL OUTLINE

Transient Suppressors

188 V

150 Cel

-55 Cel

Matte Tin (Sn)

R-PDSO-C2

1

BIDIRECTIONAL

Not Qualified

3.3 W

EXCELLENT CLAMPING CAPABILITY

DO-214AC

328 V

209 V

e3

30

260

SILICON

231 V

UL RECOGNIZED

SMAJ188CA-M3/61

Vishay Intertechnology

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

300 W

220 V

AVALANCHE

1 uA

1

188 V

SMALL OUTLINE

Transient Suppressors

188 V

150 Cel

-55 Cel

Matte Tin (Sn)

R-PDSO-C2

1

BIDIRECTIONAL

Not Qualified

3.3 W

EXCELLENT CLAMPING CAPABILITY

DO-214AC

328 V

209 V

e3

30

260

SILICON

231 V

UL RECOGNIZED

SMDJ100A-HR

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

3000 W

117 V

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

100 V

150 Cel

-65 Cel

MATTE TIN

R-PDSO-C2

1

UNIDIRECTIONAL

Not Qualified

6.5 W

EXCELLENT CLAMPING CAPABILITY, HIGH RELIABILITY

DO-214AB

162 V

111 V

e3

40

260

SILICON

123 V

UL RECOGNIZED

SMDJ10A-HR

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

3000 W

11.7 V

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

10 V

150 Cel

-65 Cel

MATTE TIN

R-PDSO-C2

1

UNIDIRECTIONAL

Not Qualified

6.5 W

EXCELLENT CLAMPING CAPABILITY, HIGH RELIABILITY

DO-214AB

17 V

11.1 V

e3

40

260

SILICON

12.3 V

UL RECOGNIZED

SMDJ10CA-HR

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

3000 W

11.7 V

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

10 V

150 Cel

-65 Cel

MATTE TIN

R-PDSO-C2

1

BIDIRECTIONAL

Not Qualified

6.5 W

EXCELLENT CLAMPING CAPABILITY, HIGH RELIABILITY

DO-214AB

17 V

11.1 V

e3

40

260

SILICON

12.3 V

UL RECOGNIZED

SMDJ110A-HR

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

3000 W

128.5 V

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

110 V

150 Cel

-65 Cel

MATTE TIN

R-PDSO-C2

1

UNIDIRECTIONAL

Not Qualified

6.5 W

EXCELLENT CLAMPING CAPABILITY, HIGH RELIABILITY

DO-214AB

177 V

122 V

e3

40

260

SILICON

135 V

UL RECOGNIZED

SMDJ11A-HR

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

3000 W

12.85 V

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

11 V

150 Cel

-65 Cel

MATTE TIN

R-PDSO-C2

1

UNIDIRECTIONAL

Not Qualified

6.5 W

EXCELLENT CLAMPING CAPABILITY, HIGH RELIABILITY

DO-214AB

18.2 V

12.2 V

e3

40

260

SILICON

13.5 V

UL RECOGNIZED

SMDJ11CA-HR

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

3000 W

12.85 V

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

11 V

150 Cel

-65 Cel

MATTE TIN

R-PDSO-C2

1

BIDIRECTIONAL

Not Qualified

6.5 W

EXCELLENT CLAMPING CAPABILITY, HIGH RELIABILITY

DO-214AB

18.2 V

12.2 V

e3

40

260

SILICON

13.5 V

UL RECOGNIZED

SMDJ120A-HR

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

3000 W

140 V

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

120 V

150 Cel

-65 Cel

MATTE TIN

R-PDSO-C2

1

UNIDIRECTIONAL

Not Qualified

6.5 W

EXCELLENT CLAMPING CAPABILITY, HIGH RELIABILITY

DO-214AB

193 V

133 V

e3

40

260

SILICON

147 V

UL RECOGNIZED

SMDJ12A-HR

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

3000 W

14 V

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

12 V

150 Cel

-65 Cel

MATTE TIN

R-PDSO-C2

1

UNIDIRECTIONAL

Not Qualified

6.5 W

EXCELLENT CLAMPING CAPABILITY, HIGH RELIABILITY

DO-214AB

19.9 V

13.3 V

e3

40

260

SILICON

14.7 V

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.