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

P4KE18T

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

400 W

AVALANCHE

1

LONG FORM

15.3 V

175 Cel

-55 Cel

Matte Tin (Sn)

O-PALF-W2

2

UNIDIRECTIONAL

ISOLATED

Not Qualified

1 W

LOW IMPEDANCE

DO-204AL

16.2 V

e3

30

260

SILICON

19.8 V

5KP33CAT-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

BIDIRECTIONAL

ISOLATED

Not Qualified

8 W

36.7 V

e3

30

260

SILICON

40.6 V

UL LISTED

SMBJ36T1

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

40 V

e3

40

260

SILICON

50.7 V

UL RECOGNIZED

15KPA170C-B

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

15000 W

AVALANCHE

1

LONG FORM

170 V

MATTE TIN

O-PALF-W2

1

BIDIRECTIONAL

ISOLATED

Not Qualified

8 W

189.9 V

e3

40

260

SILICON

UL RECOGNIZED

SMCJ28-001

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

15KP280CB

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

15000 W

311 V

AVALANCHE

1

LONG FORM

Transient Suppressors

280 V

Matte Tin (Sn)

O-PALF-W2

2

BIDIRECTIONAL

ISOLATED

Not Qualified

8 W

EXCELLENT CLAMPING CAPABILITY

452 V

342.1 V

e3

30

260

SILICON

279.9 V

UL RECOGNIZED

5KP70-B

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

5000 W

81.9 V

AVALANCHE

1

LONG FORM

Transient Suppressors

70 V

175 Cel

-55 Cel

Matte Tin (Sn)

O-PALF-W2

1

UNIDIRECTIONAL

ISOLATED

Not Qualified

8 W

113 V

77.8 V

e3

40

260

SILICON

86 V

UL RECOGNIZED

15KPA150A-HRA

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

15000 W

175.55 V

AVALANCHE

2 uA

1

150 V

LONG FORM

150 V

175 Cel

-55 Cel

MATTE TIN

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

8 W

EXCELLENT CLAMPING CAPABILITY; HIGH RELIABILITY

241.9 V

167.6 V

e3

SILICON

183.5 V

IEC-61000-4-2,4-4; MIL-STD-750; UL RECOGNIZED

5KP7.5AB-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

8.33 V

e3

30

260

SILICON

9.21 V

UL LISTED

5KP75CAT-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

83.3 V

e3

SILICON

92.1 V

UL LISTED

SMBJ15CA-001

Littelfuse

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

150 Cel

-55 Cel

R-PDSO-C2

BIDIRECTIONAL

5 W

EXCELLENT CLAMPING CAPABILITY

DO-214AA

24.4 V

16.7 V

SILICON

18.5 V

UL RECOGNIZED

LC17AB

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 CAPACITANCE, LOW IMPEDANCE

DO-13

18.6 V

SILICON

20.9 V

SMCJ40A-HRAT7

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1500 W

3.5 V

46.75 V

AVALANCHE

1 uA

1

40 V

SMALL OUTLINE

40 V

150 Cel

-65 Cel

R-PDSO-C2

UNIDIRECTIONAL

6.5 W

EXCELLENT CLAMPING CAPABILITY; HIGH RELIABILITY

DO-214AB

64.5 V

44.4 V

NOT SPECIFIED

NOT SPECIFIED

SILICON

49.1 V

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

SMCJ16A-HRAT7

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1500 W

3.5 V

18.75 V

AVALANCHE

1 uA

1

16 V

SMALL OUTLINE

16 V

150 Cel

-65 Cel

R-PDSO-C2

UNIDIRECTIONAL

6.5 W

EXCELLENT CLAMPING CAPABILITY; HIGH RELIABILITY

DO-214AB

26 V

17.8 V

NOT SPECIFIED

NOT SPECIFIED

SILICON

19.7 V

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

LCE15T

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

1500 W

AVALANCHE

1

LONG FORM

15 V

175 Cel

-55 Cel

MATTE TIN

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

5 W

LOW CAPACITANCE

DO-201AD

16.6 V

e3

40

260

SILICON

18.6 V

SMBJ8.5CA-001T13

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

600 W

9.92 V

AVALANCHE

40 uA

1

8.5 V

SMALL OUTLINE

8.5 V

150 Cel

-55 Cel

R-PDSO-C2

BIDIRECTIONAL

5 W

EXCELLENT CLAMPING CAPABILITY

DO-214AA

14.4 V

9.44 V

SILICON

10.4 V

UL RECOGNIZED

5KP6.5C-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

7.22 V

e3

SILICON

8.82 V

UL LISTED

SMBJ36T3

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

40 V

e3

40

260

SILICON

50.7 V

UL RECOGNIZED

LC18A

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

METAL

SINGLE

1500 W

20 V

AVALANCHE

1

LONG FORM

Transient Suppressors

18 V

O-MALF-W2

BIDIRECTIONAL

ISOLATED

Not Qualified

1 W

LOW CAPACITANCE, LOW IMPEDANCE

DO-13

29.2 V

20 V

SILICON

22.1 V

SMCJ16CA-HRAT7

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1500 W

18.75 V

AVALANCHE

1 uA

1

16 V

SMALL OUTLINE

16 V

150 Cel

-65 Cel

R-PDSO-C2

BIDIRECTIONAL

6.5 W

EXCELLENT CLAMPING CAPABILITY; HIGH RELIABILITY

DO-214AB

26 V

17.8 V

NOT SPECIFIED

NOT SPECIFIED

SILICON

19.7 V

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

15KP26AB

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

15000 W

28.9 V

AVALANCHE

1

LONG FORM

Transient Suppressors

26 V

Matte Tin (Sn)

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

8 W

EXCELLENT CLAMPING CAPABILITY

44 V

30.345 V

e3

30

260

SILICON

27.455 V

UL RECOGNIZED

15KPA30

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

15000 W

AVALANCHE

1

LONG FORM

Transient Suppressors

30 V

175 Cel

-55 Cel

MATTE TIN

O-PALF-W2

1

UNIDIRECTIONAL

ISOLATED

Not Qualified

8 W

EXCELLENT CLAMPING CAPABILITY

50.7 V

31.59 V

e3

40

260

SILICON

38.62 V

UL RECOGNIZED

SMCJ130CA-001T13

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

15KP60AB

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

15000 W

66.7 V

AVALANCHE

1

LONG FORM

Transient Suppressors

60 V

Matte Tin (Sn)

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

8 W

EXCELLENT CLAMPING CAPABILITY

97.3 V

70.035 V

e3

30

260

SILICON

63.365 V

UL RECOGNIZED

SMF6.5A-T13

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

FLAT

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1000 W

7.6 V

AVALANCHE

250 uA

1

6.5 V

SMALL OUTLINE

6.5 V

150 Cel

-65 Cel

MATTE TIN

R-PDSO-F2

1

UNIDIRECTIONAL

1 W

EXCELLENT CLAMPING CAPABILITY

11.2 V

7.22 V

e3

SILICON

7.98 V

IEC-61000-4-2, 4-4

SMCJ16A-HRA

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1500 W

3.5 V

18.75 V

AVALANCHE

1 uA

1

16 V

SMALL OUTLINE

16 V

150 Cel

-65 Cel

MATTE TIN

R-PDSO-C2

1

UNIDIRECTIONAL

6.5 W

EXCELLENT CLAMPING CAPABILITY; HIGH RELIABILITY

DO-214AB

26 V

17.8 V

e3

40

260

SILICON

19.7 V

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

SMBJ43-001

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

600 W

3.5 V

53.1 V

AVALANCHE

1 uA

1

43 V

SMALL OUTLINE

43 V

150 Cel

-55 Cel

R-PDSO-C2

UNIDIRECTIONAL

5 W

EXCELLENT CLAMPING CAPABILITY

DO-214AA

76.7 V

47.8 V

SILICON

58.4 V

UL RECOGNIZED

SMBJ13A-HRA

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

J BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

600 W

AVALANCHE

1

SMALL OUTLINE

13 V

150 Cel

-65 Cel

MATTE TIN

R-PDSO-J2

UNIDIRECTIONAL

5 W

EXCELLENT CLAMPING CAPABILITY, HIGH RELIABILITY

DO-214AA

14.4 V

e3

40

260

SILICON

15.9 V

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

AK10-530C-Y

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

SILVER

e4

30

260

15KPA260A-HRA

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

15000 W

304.2 V

AVALANCHE

2 uA

1

260 V

LONG FORM

260 V

175 Cel

-55 Cel

MATTE TIN

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

8 W

EXCELLENT CLAMPING CAPABILITY; HIGH RELIABILITY

416.7 V

290.4 V

e3

SILICON

318 V

IEC-61000-4-2,4-4; MIL-STD-750; UL RECOGNIZED

5KP8.0AB-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

UNIDIRECTIONAL

ISOLATED

Not Qualified

8 W

8.89 V

e3

SILICON

9.83 V

UL LISTED

SLT2103AC

Littelfuse

SMCJ17CA-001

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

5KP14A-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

15.6 V

e3

SILICON

17.2 V

UL LISTED

SMA6L5.0A

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

FLAT

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

600 W

6.7 V

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

5 V

150 Cel

-65 Cel

MATTE TIN

R-PDSO-F2

1

UNIDIRECTIONAL

3 W

EXCELLENT CLAMPING CAPABILITY

DO-221AC

9.2 V

6.4 V

e3

30

260

SILICON

7 V

1.5SMB51A

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1500 W

5 V

51.05 V

AVALANCHE

1 uA

1

43.6 V

SMALL OUTLINE

43.6 V

150 Cel

-65 Cel

MATTE TIN

R-PDSO-C2

1

UNIDIRECTIONAL

5 W

EXCELLENT CLAMPING CAPABILITY

DO-214AA

90.6 V

48.5 V

e3

40

260

SILICON

53.6 V

IEC-61000-4-2, 4-4

5KP14-B

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

5000 W

16.4 V

AVALANCHE

1

LONG FORM

Transient Suppressors

14 V

175 Cel

-55 Cel

Matte Tin (Sn)

O-PALF-W2

1

UNIDIRECTIONAL

ISOLATED

Not Qualified

8 W

23.2 V

15.6 V

e3

40

260

SILICON

17.2 V

UL RECOGNIZED

LCE40-B

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

1500 W

AVALANCHE

1

LONG FORM

40 V

Matte Tin (Sn)

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

5 W

LOW CAPACITANCE

DO-201AD

44.4 V

e3

40

260

SILICON

54.3 V

5KP120T

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

5000 W

AVALANCHE

1

LONG FORM

120 V

175 Cel

-55 Cel

Tin (Sn)

O-PALF-W2

2

UNIDIRECTIONAL

ISOLATED

Not Qualified

8 W

132.9 V

e3

30

260

SILICON

146.9 V

UL RECOGNIZED

5KP75-B

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

5000 W

87.7 V

AVALANCHE

1

LONG FORM

Transient Suppressors

75 V

175 Cel

-55 Cel

Matte Tin (Sn)

O-PALF-W2

1

UNIDIRECTIONAL

ISOLATED

Not Qualified

8 W

121 V

83.3 V

e3

40

260

SILICON

92.1 V

UL RECOGNIZED

1.5SMC27AT

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1500 W

27 V

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

23.1 V

150 Cel

-55 Cel

Matte Tin (Sn)

R-PDSO-C2

1

UNIDIRECTIONAL

EXCELLENT CLAMPING CAPABILITY, PRSM-MIN

DO-214AB

37.5 V

25.7 V

e3

40

260

SILICON

28.4 V

UL RECOGNIZED

5KP12AUTO

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

NO

14 V

Transient Suppressors

12 V

MATTE TIN

UNIDIRECTIONAL

20.9 V

e3

40

260

5KP36AAUTO-B

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

5000 W

42.1 V

AVALANCHE

1

LONG FORM

Transient Suppressors

36 V

Matte Tin (Sn)

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

8 W

EXCELLENT CLAMPING CAPABILITY

58.1 V

40 V

e3

40

260

SILICON

44.2 V

UL RECOGNIZED

SMBJ300C

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

600 W

353 V

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

300 V

MATTE TIN

R-PDSO-C2

1

BIDIRECTIONAL

Not Qualified

DO-214AA

486 V

335 V

e3

40

260

SILICON

371 V

UL RECOGNIZED

5KP54CT

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

5000 W

AVALANCHE

1

LONG FORM

54 V

175 Cel

-55 Cel

Tin (Sn)

O-PALF-W2

2

BIDIRECTIONAL

ISOLATED

Not Qualified

8 W

59.9 V

e3

30

260

SILICON

66.2 V

UL RECOGNIZED

5KP15AUTO

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

NO

17.6 V

Transient Suppressors

15 V

MATTE TIN

UNIDIRECTIONAL

25.6 V

e3

40

260

SMBJ160CA-HRA

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

J BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

600 W

AVALANCHE

1

SMALL OUTLINE

160 V

150 Cel

-65 Cel

MATTE TIN

R-PDSO-J2

BIDIRECTIONAL

5 W

EXCELLENT CLAMPING CAPABILITY, HIGH RELIABILITY

DO-214AA

178 V

e3

40

260

SILICON

197 V

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

1.5SMC11

Littelfuse

TRANS VOLTAGE SUPPRESSOR DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1500 W

11 V

AVALANCHE

1

SMALL OUTLINE

Transient Suppressors

9.4 V

150 Cel

-65 Cel

Matte Tin (Sn)

R-PDSO-C2

UNIDIRECTIONAL

6.5 W

EXCELLENT CLAMPING CAPABILITY

DO-214AB

15.6 V

9.95 V

e3

40

260

SILICON

12.16 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.