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

SLD5S22A

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

MATTE TIN

2

e3

30

260

SMCJ5.0A-HR

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1500 W

AVALANCHE

1

SMALL OUTLINE

5 V

150 Cel

-55 Cel

MATTE TIN

R-PDSO-C2

1

UNIDIRECTIONAL

6.5 W

EXCELLENT CLAMPING CAPABILITY, HIGH RELIABILITY

DO-214AB

6.4 V

e3

40

260

SILICON

7 V

UL RECOGNIZED

SMBJ75AT3

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

83.3 V

e3

40

260

SILICON

95.8 V

UL RECOGNIZED

5KP6.0AT

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

5000 W

AVALANCHE

1

LONG FORM

6 V

175 Cel

-55 Cel

Tin (Sn)

O-PALF-W2

2

UNIDIRECTIONAL

ISOLATED

Not Qualified

8 W

6.67 V

e3

30

260

SILICON

7.37 V

UL RECOGNIZED

5KP8.5CAT

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

5000 W

AVALANCHE

1

LONG FORM

8.5 V

175 Cel

-55 Cel

Tin (Sn)

O-PALF-W2

2

BIDIRECTIONAL

ISOLATED

Not Qualified

8 W

9.44 V

e3

30

260

SILICON

10.4 V

UL RECOGNIZED

SMCJ150C-001T13

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

SMBJ130-001

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

600 W

3.5 V

160 V

AVALANCHE

1 uA

1

130 V

SMALL OUTLINE

130 V

150 Cel

-55 Cel

R-PDSO-C2

UNIDIRECTIONAL

5 W

EXCELLENT CLAMPING CAPABILITY

DO-214AA

230 V

144 V

SILICON

176 V

UL RECOGNIZED

SMBJ100-001T13

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

600 W

3.5 V

123.5 V

AVALANCHE

1 uA

1

100 V

SMALL OUTLINE

100 V

150 Cel

-55 Cel

R-PDSO-C2

UNIDIRECTIONAL

5 W

EXCELLENT CLAMPING CAPABILITY

DO-214AA

179 V

111 V

SILICON

136 V

UL RECOGNIZED

SMAJ250C

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

400 W

3.5 V

294 V

AVALANCHE

1 uA

1

SMALL OUTLINE

Transient Suppressors

250 V

150 Cel

-65 Cel

Matte Tin (Sn)

R-PDSO-C2

1

BIDIRECTIONAL

Not Qualified

3.3 W

EXCELLENT CLAMPING CAPABILITY, LOW INDUCTANCE

DO-214AC

405 V

264.6 V

e3

40

260

SILICON

323.4 V

15KP85CAT-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

BIDIRECTIONAL

ISOLATED

Not Qualified

7 W

LOW IMPEDANCE

94.4 V

e3

30

260

SILICON

SP1124T-01UTG

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

BOTTOM

NO LEAD

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

858 W

AVALANCHE

1 uA

1

24 V

CHIP CARRIER

24 V

125 Cel

-40 Cel

R-PBCC-N2

1

UNIDIRECTIONAL

42.9 V

26.7 V

40

260

SILICON

AEC-Q101, IEC-61000-4-2, 4-4, 4-5

3KP17B

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

3000 W

19.9 V

AVALANCHE

1

LONG FORM

Transient Suppressors

17 V

175 Cel

-55 Cel

Matte Tin (Sn)

O-PALF-W2

1

UNIDIRECTIONAL

ISOLATED

Not Qualified

7 W

27.6 V

18.9 V

e3

40

260

SILICON

20.9 V

UL RECOGNIZED

TP1.5KE43CA

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

1500 W

AVALANCHE

1

LONG FORM

36.8 V

150 Cel

-55 Cel

MATTE TIN

O-PALF-W2

1

BIDIRECTIONAL

ISOLATED

6.5 W

EXCELLENT CLAMPING CAPABILITY, HIGH RELIABILITY

DO-201

40.9 V

e3

10

265

SILICON

45.2 V

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

15KP240B

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

15000 W

267 V

AVALANCHE

1

LONG FORM

Transient Suppressors

240 V

Matte Tin (Sn)

O-PALF-W2

2

UNIDIRECTIONAL

ISOLATED

Not Qualified

8 W

EXCELLENT CLAMPING CAPABILITY

388 V

293.7 V

e3

30

260

SILICON

240.3 V

UL RECOGNIZED

SLT3602AB

Littelfuse

15KPA51CA

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

15000 W

AVALANCHE

1

LONG FORM

Transient Suppressors

51 V

175 Cel

-55 Cel

MATTE TIN

O-PALF-W2

1

BIDIRECTIONAL

ISOLATED

Not Qualified

8 W

EXCELLENT CLAMPING CAPABILITY

82.8 V

57 V

e3

40

260

SILICON

62.4 V

UL RECOGNIZED

LCE7.5T

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

1500 W

AVALANCHE

1

LONG FORM

7.5 V

175 Cel

-55 Cel

MATTE TIN

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

5 W

LOW CAPACITANCE

DO-201AD

8.23 V

e3

40

260

SILICON

9.31 V

15KP90CB

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

15000 W

100 V

AVALANCHE

1

LONG FORM

Transient Suppressors

90 V

Matte Tin (Sn)

O-PALF-W2

2

BIDIRECTIONAL

ISOLATED

Not Qualified

8 W

EXCELLENT CLAMPING CAPABILITY

146 V

110 V

e3

30

260

SILICON

90 V

UL RECOGNIZED

SMCJ58-001

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

P4KE7.5T

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

400 W

AVALANCHE

1

LONG FORM

6.4 V

175 Cel

-55 Cel

Matte Tin (Sn)

O-PALF-W2

2

UNIDIRECTIONAL

ISOLATED

Not Qualified

1 W

LOW IMPEDANCE

DO-204AL

6.75 V

e3

30

260

SILICON

8.25 V

SMCJ170A-HRA

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1500 W

5 V

199 V

AVALANCHE

1 uA

1

170 V

SMALL OUTLINE

170 V

150 Cel

-65 Cel

MATTE TIN

R-PDSO-C2

1

UNIDIRECTIONAL

6.5 W

EXCELLENT CLAMPING CAPABILITY; HIGH RELIABILITY

DO-214AB

275 V

189 V

e3

40

260

SILICON

209 V

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

SMBJ11AT1

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

12.2 V

e3

40

260

SILICON

14 V

UL RECOGNIZED

SMCJ20C-001T13

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

3KP16A-B

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

3000 W

18.75 V

AVALANCHE

1

LONG FORM

Transient Suppressors

16 V

175 Cel

-55 Cel

Matte Tin (Sn)

O-PALF-W2

1

UNIDIRECTIONAL

ISOLATED

Not Qualified

7 W

26 V

17.8 V

e3

40

260

SILICON

19.7 V

UL RECOGNIZED

15KP130T-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

144 V

e3

30

260

SILICON

SLD18U-017-B

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AVALANCHE

MATTE TIN

2

e3

30

260

SILICON

5KP9.0CA-2

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

5000 W

AVALANCHE

1

LONG FORM

MATTE TIN

O-PALF-W2

1

BIDIRECTIONAL

ISOLATED

Not Qualified

8 W

10 V

e3

SILICON

11.1 V

UL LISTED

SMCG8.5A-HRA

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

L BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1500 W

AVALANCHE

1

SMALL OUTLINE

8.5 V

150 Cel

-65 Cel

MATTE TIN

R-PDSO-L2

1

UNIDIRECTIONAL

6.5 W

EXCELLENT CLAMPING CAPABILITY, HIGH RELIABILITY

DO-215AB

9.44 V

e3

30

260

SILICON

10.4 V

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

1.5SMC600C

Littelfuse

5KP70AT-2

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

5000 W

AVALANCHE

1

LONG FORM

175 Cel

-55 Cel

TIN

O-PALF-W2

2

UNIDIRECTIONAL

ISOLATED

Not Qualified

8 W

77 V

e3

30

260

SILICON

86 V

UL LISTED

TP5KP11A

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

5000 W

AVALANCHE

1

LONG FORM

11 V

150 Cel

-55 Cel

MATTE TIN

O-PALF-W2

1

UNIDIRECTIONAL

ISOLATED

8 W

EXCELLENT CLAMPING CAPABILITY, HIGH RELIABILITY, UL RECOGNIZED

12.2 V

e3

10

265

SILICON

13.5 V

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

5KP48A-HRA

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

MATTE TIN

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

8 W

EXCELLENT CLAMPING CAPABILITY, HIGH RELIABILITY

53.3 V

e3

10

260

SILICON

58.9 V

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

1.5SMC16CAT

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1500 W

16 V

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

13.6 V

150 Cel

-55 Cel

Matte Tin (Sn)

R-PDSO-C2

1

BIDIRECTIONAL

EXCELLENT CLAMPING CAPABILITY, PRSM-MIN

DO-214AB

22.5 V

15.2 V

e3

40

260

SILICON

16.8 V

UL RECOGNIZED

15KP150CB-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

BIDIRECTIONAL

ISOLATED

Not Qualified

7 W

LOW IMPEDANCE

167 V

e3

30

260

SILICON

1.5SMC10C

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1500 W

AVALANCHE

1

SMALL OUTLINE

8.55 V

150 Cel

-65 Cel

Matte Tin (Sn)

R-PDSO-C2

BIDIRECTIONAL

6.5 W

EXCELLENT CLAMPING CAPABILITY

DO-214AB

9 V

e3

40

260

SILICON

11 V

UL RECOGNIZED

5KP40CA-HRA

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

5000 W

AVALANCHE

1

LONG FORM

40 V

175 Cel

-55 Cel

MATTE TIN

O-PALF-W2

BIDIRECTIONAL

ISOLATED

8 W

EXCELLENT CLAMPING CAPABILITY, HIGH RELIABILITY

44.4 V

e3

10

260

SILICON

49.1 V

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

SMA6L45A

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

FLAT

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

600 W

52.7 V

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

45 V

150 Cel

-65 Cel

MATTE TIN

R-PDSO-F2

1

UNIDIRECTIONAL

3 W

EXCELLENT CLAMPING CAPABILITY

DO-221AC

72.7 V

50 V

e3

30

260

SILICON

55.3 V

SA36-B

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

500 W

42.1 V

AVALANCHE

1

LONG FORM

Transient Suppressors

36 V

175 Cel

-55 Cel

Matte Tin (Sn)

O-PALF-W2

1

UNIDIRECTIONAL

ISOLATED

Not Qualified

3 W

EXCELLENT CLAMPING CAPABILITY

DO-204AC

58.1 V

37.89 V

e3

30

260

SILICON

46.31 V

UL RECOGNIZED

SMBJ110CA-HR

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

J BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

600 W

AVALANCHE

1

SMALL OUTLINE

110 V

150 Cel

-65 Cel

MATTE TIN

R-PDSO-J2

1

BIDIRECTIONAL

5 W

EXCELLENT CLAMPING CAPABILITY, HIGH RELIABILITY

DO-214AA

122 V

e3

40

260

SILICON

135 V

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

ICTE-8C

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

UNSPECIFIED

SINGLE

1500 W

AVALANCHE

1

LONG FORM

Transient Suppressors

8 V

Tin/Lead (Sn/Pb)

O-XALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

5 W

DO-201AD

11.6 V

9.4 V

e0

SILICON

5KP7.0A-2

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

5000 W

AVALANCHE

1

LONG FORM

MATTE TIN

O-PALF-W2

1

UNIDIRECTIONAL

ISOLATED

Not Qualified

8 W

7.78 V

e3

SILICON

8.6 V

UL LISTED

1N6066AT

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

METAL

SINGLE

1500 W

AVALANCHE

1

LONG FORM

O-MALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

1 W

LOW IMPEDANCE

DO-13

124 V

SILICON

137 V

MPTE-45CB

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

1500 W

AVALANCHE

1

LONG FORM

45 V

O-PALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

5 W

DO-201AD

52.9 V

SILICON

SA6.5CAT

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

500 W

7.6 V

AVALANCHE

1

LONG FORM

Transient Suppressors

6.5 V

175 Cel

-55 Cel

Matte Tin (Sn)

O-PALF-W2

1

BIDIRECTIONAL

ISOLATED

Not Qualified

3 W

EXCELLENT CLAMPING CAPABILITY

DO-204AC

11.2 V

7.22 V

e3

30

260

SILICON

7.98 V

UL RECOGNIZED

SMCJ8.5CA-HRA

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1500 W

9.92 V

AVALANCHE

20 uA

1

8.5 V

SMALL OUTLINE

8.5 V

150 Cel

-65 Cel

MATTE TIN

R-PDSO-C2

1

BIDIRECTIONAL

6.5 W

EXCELLENT CLAMPING CAPABILITY; HIGH RELIABILITY

DO-214AB

14.4 V

9.44 V

e3

40

260

SILICON

10.4 V

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

SMBJ150CT1

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

167 V

e3

40

260

SILICON

211.5 V

UL RECOGNIZED

SMBJ78A-001T13

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

600 W

3.5 V

91.25 V

AVALANCHE

1 uA

1

78 V

SMALL OUTLINE

78 V

150 Cel

-55 Cel

R-PDSO-C2

UNIDIRECTIONAL

5 W

EXCELLENT CLAMPING CAPABILITY

DO-214AA

126 V

86.7 V

SILICON

95.8 V

UL RECOGNIZED

SMCJ180C-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.