Littelfuse 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

SMCJ16CA-HR

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1500 W

AVALANCHE

1

SMALL OUTLINE

16 V

150 Cel

-55 Cel

MATTE TIN

R-PDSO-C2

1

BIDIRECTIONAL

6.5 W

EXCELLENT CLAMPING CAPABILITY, HIGH RELIABILITY

DO-214AB

17.8 V

e3

40

260

SILICON

19.7 V

UL RECOGNIZED

SMCJ17A-HR

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1500 W

AVALANCHE

1

SMALL OUTLINE

17 V

150 Cel

-55 Cel

MATTE TIN

R-PDSO-C2

1

UNIDIRECTIONAL

6.5 W

EXCELLENT CLAMPING CAPABILITY, HIGH RELIABILITY

DO-214AB

18.9 V

e3

40

260

SILICON

20.9 V

UL RECOGNIZED

SMBJ9.0T1

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

600 W

AVALANCHE

1

SMALL OUTLINE

MATTE TIN

R-PDSO-C2

1

UNIDIRECTIONAL

Not Qualified

1.5 W

DO-214AA

10 V

e3

40

260

SILICON

12.6 V

UL RECOGNIZED

5KP5.0-B

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

5000 W

6.7 V

AVALANCHE

1

LONG FORM

Transient Suppressors

5 V

175 Cel

-55 Cel

Matte Tin (Sn)

O-PALF-W2

1

UNIDIRECTIONAL

ISOLATED

Not Qualified

8 W

9.2 V

6.4 V

e3

40

260

SILICON

7 V

UL RECOGNIZED

SMCG64CA-HRA

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

L BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1500 W

AVALANCHE

1

SMALL OUTLINE

64 V

150 Cel

-65 Cel

MATTE TIN

R-PDSO-L2

1

BIDIRECTIONAL

6.5 W

EXCELLENT CLAMPING CAPABILITY, HIGH RELIABILITY

DO-215AB

71.1 V

e3

30

260

SILICON

78.6 V

IEC-61000-4-2, 4-4; UL RECOGNIZED

5KP90CAB-2

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

5000 W

AVALANCHE

1

LONG FORM

175 Cel

-55 Cel

MATTE TIN

O-PALF-W2

1

BIDIRECTIONAL

ISOLATED

Not Qualified

8 W

100 V

e3

SILICON

111 V

UL LISTED

15KP120B

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

15000 W

133 V

AVALANCHE

1

LONG FORM

Transient Suppressors

120 V

Matte Tin (Sn)

O-PALF-W2

2

UNIDIRECTIONAL

ISOLATED

Not Qualified

8 W

EXCELLENT CLAMPING CAPABILITY

193 V

146.3 V

e3

30

260

SILICON

119.7 V

UL RECOGNIZED

SMBJ30CA-HR

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

J BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

600 W

AVALANCHE

1

SMALL OUTLINE

30 V

150 Cel

-65 Cel

MATTE TIN

R-PDSO-J2

1

BIDIRECTIONAL

5 W

EXCELLENT CLAMPING CAPABILITY, HIGH RELIABILITY

DO-214AA

33.3 V

e3

40

260

SILICON

36.8 V

IEC-61000-4-2, 4-4; UL RECOGNIZED

3KP13CB

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

3000 W

15.15 V

AVALANCHE

1

LONG FORM

Transient Suppressors

13 V

Matte Tin (Sn)

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

7 W

21.5 V

14.4 V

e3

40

260

SILICON

15.9 V

UL RECOGNIZED

5KP150CA-HRA

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

5000 W

AVALANCHE

1

LONG FORM

150 V

175 Cel

-55 Cel

MATTE TIN

O-PALF-W2

BIDIRECTIONAL

ISOLATED

8 W

EXCELLENT CLAMPING CAPABILITY, HIGH RELIABILITY

167 V

e3

10

260

SILICON

185 V

IEC-61000-4-2, 4-4; UL RECOGNIZED

LCE15-B

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

1500 W

17.6 V

AVALANCHE

1

LONG FORM

Transient Suppressors

15 V

175 Cel

-55 Cel

Matte Tin (Sn)

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

5 W

LOW CAPACITANCE

DO-201AD

24.4 V

16.6 V

e3

40

260

SILICON

18.6 V

15KP280C

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

NO

346 V

Transient Suppressors

280 V

BIDIRECTIONAL

500 V

TP5KP18CA

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

5000 W

AVALANCHE

1

LONG FORM

18 V

150 Cel

-55 Cel

O-PALF-W2

BIDIRECTIONAL

ISOLATED

8 W

EXCELLENT CLAMPING CAPABILITY, HIGH RELIABILITY, UL RECOGNIZED

20 V

NOT SPECIFIED

NOT SPECIFIED

SILICON

22.1 V

AEC-Q101; IEC-61000-4-2, 4-4

P4KE43AT

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

400 W

AVALANCHE

1

LONG FORM

36.8 V

175 Cel

-55 Cel

Matte Tin (Sn)

O-PALF-W2

1

UNIDIRECTIONAL

ISOLATED

Not Qualified

1 W

LOW IMPEDANCE

DO-204AL

40.9 V

e3

10

265

SILICON

45.2 V

SMBJ33CAT3

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

600 W

AVALANCHE

1

SMALL OUTLINE

MATTE TIN

R-PDSO-C2

1

BIDIRECTIONAL

Not Qualified

1.5 W

DO-214AA

36.7 V

e3

40

260

SILICON

42.2 V

UL RECOGNIZED

5KP48CT

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

5000 W

AVALANCHE

1

LONG FORM

48 V

175 Cel

-55 Cel

Tin (Sn)

O-PALF-W2

2

BIDIRECTIONAL

ISOLATED

Not Qualified

8 W

53.2 V

e3

30

260

SILICON

58.8 V

UL RECOGNIZED

SMCG6.0CA-HRA

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

L BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1500 W

AVALANCHE

1

SMALL OUTLINE

6 V

150 Cel

-65 Cel

MATTE TIN

R-PDSO-L2

1

BIDIRECTIONAL

6.5 W

EXCELLENT CLAMPING CAPABILITY, HIGH RELIABILITY

DO-215AB

6.67 V

e3

30

260

SILICON

7.37 V

IEC-61000-4-2, 4-4; UL RECOGNIZED

1.5SMC9.1CAT

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1500 W

9.1 V

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

7.78 V

150 Cel

-55 Cel

Matte Tin (Sn)

R-PDSO-C2

1

BIDIRECTIONAL

EXCELLENT CLAMPING CAPABILITY, PRSM-MIN

DO-214AB

13.4 V

8.65 V

e3

40

260

SILICON

9.5 V

UL RECOGNIZED

ICT-45

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

METAL

SINGLE

1500 W

53 V

AVALANCHE

1

LONG FORM

Transient Suppressors

45 V

Tin/Lead (Sn/Pb)

O-MALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

1 W

LOW IMPEDANCE

DO-13

70 V

52.9 V

e0

SILICON

SMBJ150CA-HR

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

J BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

600 W

AVALANCHE

1

SMALL OUTLINE

150 V

150 Cel

-65 Cel

MATTE TIN

R-PDSO-J2

1

BIDIRECTIONAL

5 W

EXCELLENT CLAMPING CAPABILITY, HIGH RELIABILITY

DO-214AA

167 V

e3

40

260

SILICON

185 V

IEC-61000-4-2, 4-4; UL RECOGNIZED

LCE26CAB

Littelfuse

Matte Tin (Sn) - annealed

1

e3

10

265

15KP58AT-2

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

15000 W

AVALANCHE

1

LONG FORM

175 Cel

-55 Cel

Matte Tin (Sn)

O-PALF-W2

2

UNIDIRECTIONAL

ISOLATED

Not Qualified

7 W

LOW IMPEDANCE

64.4 V

e3

30

260

SILICON

15KP58T

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

15000 W

64.4 V

AVALANCHE

1

LONG FORM

Transient Suppressors

58 V

175 Cel

-55 Cel

Matte Tin (Sn)

O-PALF-W2

2

UNIDIRECTIONAL

ISOLATED

Not Qualified

8 W

EXCELLENT CLAMPING CAPABILITY

94 V

70.84 V

e3

30

260

SILICON

57.96 V

UL RECOGNIZED

5KP33AUTO

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

NO

38.65 V

Transient Suppressors

33 V

MATTE TIN

UNIDIRECTIONAL

56 V

e3

40

260

1.5SMC540

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1500 W

540 V

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

486 V

150 Cel

-65 Cel

Matte Tin (Sn)

R-PDSO-C2

UNIDIRECTIONAL

6.5 W

EXCELLENT CLAMPING CAPABILITY

DO-214AB

740 V

486 V

e3

40

260

SILICON

594 V

UL RECOGNIZED

3KP11A-B

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

3000 W

12.85 V

AVALANCHE

1

LONG FORM

Transient Suppressors

11 V

175 Cel

-55 Cel

Matte Tin (Sn)

O-PALF-W2

1

UNIDIRECTIONAL

ISOLATED

Not Qualified

7 W

18.2 V

12.2 V

e3

40

260

SILICON

13.5 V

UL RECOGNIZED

SMAJ200

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

400 W

3.5 V

235.5 V

AVALANCHE

1 uA

1

SMALL OUTLINE

Transient Suppressors

200 V

150 Cel

-65 Cel

Matte Tin (Sn)

R-PDSO-C2

1

UNIDIRECTIONAL

Not Qualified

3.3 W

EXCELLENT CLAMPING CAPABILITY, LOW INDUCTANCE

DO-214AC

324 V

211.95 V

e3

40

260

SILICON

259.05 V

15KPA200-B

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

15000 W

234 V

AVALANCHE

1

LONG FORM

Transient Suppressors

200 V

175 Cel

-55 Cel

MATTE TIN

O-PALF-W2

1

UNIDIRECTIONAL

ISOLATED

Not Qualified

8 W

335.1 V

223.4 V

e3

40

260

SILICON

UL RECOGNIZED

SMCJ150-001T13

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

SMCJ48A-HRAT7

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1500 W

3.5 V

56.1 V

AVALANCHE

1 uA

1

48 V

SMALL OUTLINE

48 V

150 Cel

-65 Cel

R-PDSO-C2

UNIDIRECTIONAL

6.5 W

EXCELLENT CLAMPING CAPABILITY; HIGH RELIABILITY

DO-214AB

77.4 V

53.3 V

NOT SPECIFIED

NOT SPECIFIED

SILICON

58.9 V

MIL-PRF-19500; MIL-STD-750; UL RECOGNIZED

1.5SMC540CAT

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1500 W

540 V

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

459 V

150 Cel

-55 Cel

Matte Tin (Sn)

R-PDSO-C2

1

BIDIRECTIONAL

EXCELLENT CLAMPING CAPABILITY, PRSM-MIN

DO-214AB

740 V

513 V

e3

40

260

SILICON

567 V

UL RECOGNIZED

SA51AT

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

500 W

59.7 V

AVALANCHE

1

LONG FORM

Transient Suppressors

51 V

175 Cel

-55 Cel

Matte Tin (Sn)

O-PALF-W2

1

UNIDIRECTIONAL

ISOLATED

Not Qualified

3 W

EXCELLENT CLAMPING CAPABILITY

DO-204AC

82.4 V

56.7 V

e3

30

260

SILICON

62.7 V

UL RECOGNIZED

15KP70AB

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

15000 W

77.8 V

AVALANCHE

1

LONG FORM

Transient Suppressors

70 V

Matte Tin (Sn)

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

8 W

EXCELLENT CLAMPING CAPABILITY

114 V

81.69 V

e3

30

260

SILICON

73.91 V

UL RECOGNIZED

SMBJ18AT1

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

600 W

AVALANCHE

1

SMALL OUTLINE

MATTE TIN

R-PDSO-C2

1

UNIDIRECTIONAL

Not Qualified

1.5 W

DO-214AA

20 V

e3

40

260

SILICON

23.3 V

UL RECOGNIZED

15KP60A-2

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

15000 W

AVALANCHE

1

LONG FORM

Matte Tin (Sn)

O-PALF-W2

2

UNIDIRECTIONAL

ISOLATED

Not Qualified

7 W

LOW IMPEDANCE

66.7 V

e3

30

260

SILICON

LCE28CAB

Littelfuse

Matte Tin (Sn) - annealed

1

e3

10

265

P4KE47A-B

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

400 W

47 V

AVALANCHE

1

LONG FORM

Transient Suppressors

40.2 V

175 Cel

-55 Cel

MATTE TIN

O-PALF-W2

1

UNIDIRECTIONAL

ISOLATED

Not Qualified

1.5 W

DO-204AL

64.8 V

44.7 V

e3

10

265

SILICON

49.4 V

UL RECOGNIZED

LTKAK10-066C

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

SINGLE

C BEND

1

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

AVALANCHE

1

SMALL OUTLINE

66 V

125 Cel

-55 Cel

R-PSSO-C1

BIDIRECTIONAL

72 V

NOT SPECIFIED

NOT SPECIFIED

SILICON

80 V

IEC-61000-4-5

5KP30AUTO

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

NO

35.05 V

Transient Suppressors

30 V

MATTE TIN

UNIDIRECTIONAL

50.8 V

e3

40

260

15KPA150CA-HR

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

15000 W

AVALANCHE

1

LONG FORM

150 V

175 Cel

-55 Cel

MATTE TIN

O-PALF-W2

BIDIRECTIONAL

ISOLATED

8 W

EXCELLENT CLAMPING CAPABILITY, HIGH RELIABILITY

167.6 V

e3

SILICON

183.5 V

IEC-61000-4-2, 4-4; UL RECOGNIZED

P4KE36AT

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

400 W

AVALANCHE

1

LONG FORM

30.8 V

175 Cel

-55 Cel

Matte Tin (Sn)

O-PALF-W2

1

UNIDIRECTIONAL

ISOLATED

Not Qualified

1 W

LOW IMPEDANCE

DO-204AL

34.2 V

e3

10

265

SILICON

37.8 V

5KP190AT

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

5000 W

AVALANCHE

1

LONG FORM

190 V

175 Cel

-55 Cel

Tin (Sn)

O-PALF-W2

2

UNIDIRECTIONAL

ISOLATED

Not Qualified

8 W

211 V

e3

30

260

SILICON

233 V

UL RECOGNIZED

SMCJ220C

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1500 W

259 V

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

220 V

Matte Tin (Sn)

R-PDSO-C2

1

BIDIRECTIONAL

Not Qualified

EXCELLENT CLAMPING CAPABILITY, LOW INDUCTANCE

DO-214AB

356 V

233.1 V

e3

40

260

SILICON

284.9 V

UL RECOGNIZED

5KP58AT

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

5000 W

AVALANCHE

1

LONG FORM

58 V

175 Cel

-55 Cel

Tin (Sn)

O-PALF-W2

2

UNIDIRECTIONAL

ISOLATED

Not Qualified

8 W

64.4 V

e3

30

260

SILICON

71.2 V

UL RECOGNIZED

5KP8.0AT

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

5000 W

AVALANCHE

1

LONG FORM

8 V

175 Cel

-55 Cel

Tin (Sn)

O-PALF-W2

2

UNIDIRECTIONAL

ISOLATED

Not Qualified

8 W

8.89 V

e3

30

260

SILICON

9.83 V

UL RECOGNIZED

SMCJ8.5-001

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

3KP90CA-B

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

3000 W

105.5 V

AVALANCHE

1

LONG FORM

Transient Suppressors

90 V

175 Cel

-55 Cel

Matte Tin (Sn)

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

7 W

146 V

100 V

e3

40

260

SILICON

111 V

UL RECOGNIZED

SMCJ16A-001T13

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

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.