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

SM4T30CAY

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

400 W

30.4 V

AVALANCHE

.2 uA

1

26 V

SMALL OUTLINE

26 V

150 Cel

-55 Cel

Matte Tin (Sn)

R-PDSO-C2

1

BIDIRECTIONAL

Not Qualified

DO-214AC

53.5 V

28.9 V

e3

30

260

SILICON

31.9 V

AEC-Q101; ISO 7637-2; ISO 10605

P6KE62PRL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

62 V

AVALANCHE

5 uA

1

LONG FORM

175 Cel

-65 Cel

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

5 W

650 pF

111 V

58.9 V

SILICON

68.2 V

UL RECOGNIZED

BZW50-22BRL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

5000 W

AVALANCHE

1

LONG FORM

Transient Suppressors

22 V

175 Cel

MATTE TIN

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

6.5 W

39.4 V

24.4 V

e3

SILICON

UL RECOGNIZED

BZW04-256RL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

400 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

90 pF

DO-15

529 V

285 V

e3

SILICON

UL RECOGNIZED

BZW04P342B

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

400 W

400 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

342 V

175 Cel

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

37.5 pF

706 V

380 V

SILICON

440 V

UL RECOGNIZED

1.5KE400PRL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

1500 W

400 V

AVALANCHE

5 uA

1

LONG FORM

175 Cel

TIN

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

5 W

390 pF

706 V

380 V

e3

SILICON

440 V

UL RECOGNIZED

SM15T24C

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1500 W

24 V

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

19 V

150 Cel

MATTE TIN

R-PDSO-C2

BIDIRECTIONAL

Not Qualified

5 W

34.7 V

22.8 V

e3

SILICON

26.4 V

UL RECOGNIZED

SM6T18

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

600 W

18 V

AVALANCHE

5 uA

1

SMALL OUTLINE

Transient Suppressors

14 V

150 Cel

-55 Cel

MATTE TIN

R-PDSO-C2

1

UNIDIRECTIONAL

Not Qualified

4 W

1600 pF

32.5 V

17.1 V

e3

SILICON

19.8 V

UL RECOGNIZED

SM4T39CA

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

400 W

39 V

AVALANCHE

5 uA

1

SMALL OUTLINE

Transient Suppressors

33 V

150 Cel

R-PDSO-C2

BIDIRECTIONAL

Not Qualified

5 W

225 pF

69.7 V

37.1 V

SILICON

41 V

1N5664A

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

METAL

SINGLE

1500 W

180 V

AVALANCHE

1

LONG FORM

Transient Suppressors

154 V

175 Cel

TIN LEAD

O-MALF-W2

UNIDIRECTIONAL

ISOLATED

5 W

DO-13

246 V

171 V

e0

SILICON

189 V

SM6T68ATR

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

600 W

AVALANCHE

1

SMALL OUTLINE

150 Cel

-55 Cel

MATTE TIN

R-PDSO-C2

1

UNIDIRECTIONAL

5 W

DO-214AA

121 V

64.6 V

e3

30

260

SILICON

71.4 V

UL RECOGNIZED

SMC30J13CA

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

3000 W

AVALANCHE

1

SMALL OUTLINE

13 V

175 Cel

-55 Cel

MATTE TIN

R-PDSO-C2

1

BIDIRECTIONAL

DO-214AB

14.4 V

e3

260

SILICON

BZW04P31

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

400 W

36 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

31 V

175 Cel

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

480 pF

64.3 V

34.2 V

SILICON

39.6 V

UL RECOGNIZED

1N5642

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

NO

24 V

Transient Suppressors

19 V

TIN LEAD

UNIDIRECTIONAL

34.7 V

e0

BZW06-13

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

15 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

13 V

175 Cel

MATTE TIN

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

1900 pF

DO-15

27.2 V

14.3 V

e3

SILICON

UL RECOGNIZED

P6KE7V5CARL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

7.5 V

AVALANCHE

500 uA

1

LONG FORM

Transient Suppressors

6.4 V

175 Cel

-65 Cel

MATTE TIN

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

5 W

1850 pF

14.5 V

7.13 V

e3

SILICON

7.88 V

UL RECOGNIZED

BZW04P64BRL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

400 W

75 V

AVALANCHE

5 uA

1

LONG FORM

175 Cel

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

125 pF

134 V

71.3 V

SILICON

82.5 V

UL RECOGNIZED

BZW04P70

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

400 W

82 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

70 V

175 Cel

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

230 pF

146 V

77.9 V

SILICON

90.2 V

UL RECOGNIZED

BZW06P145RL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

170 V

AVALANCHE

5 uA

1

LONG FORM

175 Cel

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

370 pF

301 V

161 V

SILICON

187 V

UL RECOGNIZED

SM6T36C

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

600 W

36 V

AVALANCHE

5 uA

1

SMALL OUTLINE

Transient Suppressors

29 V

150 Cel

-55 Cel

MATTE TIN

R-PDSO-C2

1

BIDIRECTIONAL

Not Qualified

4 W

475 pF

64.3 V

34.2 V

e3

SILICON

39.6 V

UL RECOGNIZED

BZW04P136RL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

400 W

160 V

AVALANCHE

5 uA

1

LONG FORM

175 Cel

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

140 pF

282 V

152 V

SILICON

176 V

UL RECOGNIZED

BZW50-18BRL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

5000 W

AVALANCHE

1

LONG FORM

Transient Suppressors

18 V

175 Cel

TIN

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

6.5 W

32.2 V

20 V

e3

SILICON

UL RECOGNIZED

BZW04-145RL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

400 W

170 V

AVALANCHE

5 uA

1

LONG FORM

175 Cel

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

135 pF

301 V

161 V

SILICON

179 V

UL RECOGNIZED

ESDAVLC6-1BF4

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

BOTTOM

NO LEAD

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

8 V

AVALANCHE

.1 uA

1

3 V

CHIP CARRIER

3 V

85 Cel

-30 Cel

R-PBCC-N2

BIDIRECTIONAL

LOW CAPACITANCE

6 V

NOT SPECIFIED

NOT SPECIFIED

SILICON

10 V

IEC61000-4-2

1N5645A

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

METAL

SINGLE

1500 W

33 V

AVALANCHE

1

LONG FORM

Transient Suppressors

28.2 V

175 Cel

TIN LEAD

O-MALF-W2

UNIDIRECTIONAL

ISOLATED

5 W

DO-13

45.7 V

31.4 V

e0

SILICON

34.7 V

1N5635

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

NO

12 V

Transient Suppressors

9.7 V

175 Cel

TIN LEAD

UNIDIRECTIONAL

17.3 V

e0

BZW06-20BRL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

20 V

175 Cel

MATTE TIN

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

625 pF

DO-15

42.8 V

22.8 V

e3

SILICON

UL RECOGNIZED

BZW04-64B

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

400 W

75 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

64 V

175 Cel

MATTE TIN

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

125 pF

134 V

71.3 V

e3

SILICON

78.8 V

UL RECOGNIZED

BZW06P154

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

180 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

154 V

175 Cel

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

360 pF

317 V

171 V

SILICON

198 V

UL RECOGNIZED

P6KE20CPRL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

20 V

AVALANCHE

5 uA

1

LONG FORM

175 Cel

-65 Cel

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

5 W

750 pF

36.1 V

19 V

SILICON

22 V

UL RECOGNIZED

P6KE150CPRL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

150 V

AVALANCHE

5 uA

1

LONG FORM

175 Cel

-65 Cel

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

5 W

200 pF

265 V

143 V

SILICON

165 V

UL RECOGNIZED

BZW06-154RL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

154 V

175 Cel

MATTE TIN

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

360 pF

DO-15

317 V

171 V

e3

SILICON

UL RECOGNIZED

P6KE16CPRL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

16 V

AVALANCHE

5 uA

1

LONG FORM

175 Cel

-65 Cel

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

5 W

900 pF

28.9 V

15.2 V

SILICON

17.6 V

UL RECOGNIZED

1.5KE16CPRL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

1500 W

16 V

AVALANCHE

5 uA

1

LONG FORM

175 Cel

TIN

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

5 W

2350 pF

28.9 V

15.2 V

e3

SILICON

17.6 V

UL RECOGNIZED

BZW04-256B

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

400 W

300 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

256 V

175 Cel

MATTE TIN

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

45 pF

DO-15

529 V

285 V

e3

SILICON

UL RECOGNIZED

SM15T7V5

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1500 W

7.5 V

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

6 V

150 Cel

MATTE TIN

R-PDSO-C2

UNIDIRECTIONAL

Not Qualified

5 W

11.7 V

7.13 V

e3

SILICON

8.25 V

UL RECOGNIZED

1.5KE200P

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

UNIDIRECTIONAL

ISOLATED

Not Qualified

5 W

675 pF

353 V

190 V

SILICON

220 V

UL RECOGNIZED

SM15T200CA-TR

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1500 W

200 V

AVALANCHE

.2 uA

1

171 V

SMALL OUTLINE

171 V

150 Cel

-55 Cel

MATTE TIN

R-PDSO-C2

1

BIDIRECTIONAL

DO-214AB

274 V

190 V

e3

245

SILICON

210 V

IEC-61000-4-2, 4-4, 4-5

BZW04P28

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

400 W

33 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

28 V

175 Cel

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

510 pF

59 V

31.4 V

SILICON

36.3 V

UL RECOGNIZED

1N5651

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

NO

56 V

Transient Suppressors

45 V

TIN LEAD

UNIDIRECTIONAL

80.5 V

e0

SMC30J8.5A

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

3000 W

AVALANCHE

1

SMALL OUTLINE

8.5 V

175 Cel

-55 Cel

MATTE TIN

R-PDSO-C2

1

UNIDIRECTIONAL

DO-214AB

9.4 V

e3

260

SILICON

BZW04P299B

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

400 W

350 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

299 V

175 Cel

MATTE TIN

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

40 pF

618 V

332 V

e3

SILICON

385 V

UL RECOGNIZED

BZW04P171BRL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

400 W

200 V

AVALANCHE

5 uA

1

LONG FORM

175 Cel

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

60 pF

353 V

190 V

SILICON

220 V

UL RECOGNIZED

ESDA19SC6

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

GULL WING

6

YES

RECTANGULAR

PLASTIC/EPOXY

COMMON ANODE, 4 ELEMENTS

300 W

20 V

AVALANCHE

4

SMALL OUTLINE

Transient Suppressors

150 Cel

Matte Tin (Sn)

R-PDSO-G6

1

UNIDIRECTIONAL

Not Qualified

19 V

e3

30

260

SILICON

21 V

BZW06P102

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

600 W

120 V

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

102 V

175 Cel

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

450 pF

212 V

114 V

SILICON

132 V

UL RECOGNIZED

HSP053-4M5

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

NO LEAD

5

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

AVALANCHE

1

SMALL OUTLINE

5 V

150 Cel

-40 Cel

R-PDSO-N5

1

UNIDIRECTIONAL

ULTRA LOW CAPACITANCE

5.3 V

SILICON

IEC-61000-4-2

1.5KE62CPRL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

1500 W

62 V

AVALANCHE

5 uA

1

LONG FORM

175 Cel

TIN

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

5 W

850 pF

111 V

58.9 V

e3

SILICON

68.2 V

UL RECOGNIZED

BZW04-28RL

STMicroelectronics

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

400 W

AVALANCHE

5 uA

1

LONG FORM

Transient Suppressors

28 V

175 Cel

MATTE TIN

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

1.7 W

510 pF

DO-15

59 V

31.4 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.