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Circuit Protection

Circuit Protection devices and components are available at Mouser Electronics from industry leading manufacturers. Mouser is an authorized distributor for many circuit protection manufacturers including Analog Devices, Bourns, Eaton, Phoenix Contact, TDK EPCOS, Littelfuse, Vishay, & more.
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Please view our selection of circuit protection devices below.

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Types of Circuit Protection

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Results: 359’646

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Part #

Varistors 20mm Radial Disc MOV - Kinked Leads, T&R

MOV-20D781KKTR
Bourns
1: CHF 1.66
3’974In Stock

Mfr. Part No.
MOV-20D781KKTR

Mouser Part No
652-MOV-20D781KKTR

Bourns

Varistors 20mm Radial Disc MOV - Kinked Leads, T&R

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Datasheet

3’974In Stock

Cut Tape

CHF 1.66

CHF 1.04

CHF 0.934

CHF 0.763

Reel

CHF 0.712

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MouseReel Available

Min.: 1
Mult.: 1

: 250

Industrial & Electrical Fuses 600V 50A RoHS

0JTD050.TXR
Littelfuse
1: CHF 50.33
58In Stock

Mfr. Part No.
0JTD050.TXR

Mouser Part No
576-0JTD050.TXR

Littelfuse

Industrial & Electrical Fuses 600V 50A RoHS

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Datasheet

58In Stock

CHF 50.33

CHF 42.95

CHF 39.73

CHF 34.99

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Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 5.0SMDJ - CA 250V

5.0SMDJ250CA
Littelfuse
1: CHF 2.45
1’740In Stock

Mfr. Part No.
5.0SMDJ250CA

Mouser Part No
576-5.0SMDJ250CA

Littelfuse

ESD Protection Diodes / TVS Diodes 5.0SMDJ - CA 250V

Datasheet

1’740In Stock

Cut Tape

CHF 2.45

CHF 1.59

CHF 1.17

CHF 0.992

CHF 0.837

Reel

CHF 0.797

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

ESD Protection Diodes / TVS Diodes Zen TVS 5000W 28V Bi DO-214AB TR13

SZ5KASMC28CAT3G
Littelfuse
1: CHF 2.94
3’918In Stock

Mfr. Part No.
SZ5KASMC28CAT3G

Mouser Part No
576-SZ5KASMC28CAT3G

Littelfuse

ESD Protection Diodes / TVS Diodes Zen TVS 5000W 28V Bi DO-214AB TR13

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Datasheet

3’918In Stock

Cut Tape

CHF 2.94

CHF 1.92

CHF 1.51

CHF 1.45

Reel

CHF 1.20

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MouseReel Available

Min.: 1
Mult.: 1

: 2’500

Thermal Cut-offs 16V 500A MAX

HCRTP-MINI-B
Littelfuse
1: CHF 1.22
4’000In Stock
New Product

Mfr. Part No.
HCRTP-MINI-B

Mouser Part No
650-HCRTP-MINI-B

New Product

Littelfuse

Thermal Cut-offs 16V 500A MAX

Datasheet

4’000In Stock

CHF 1.22

CHF 0.964

CHF 0.797

CHF 0.711

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Min.: 1
Mult.: 1

Industrial Surge Protectors DATA and SIGNAL SPD,2L,110V,Circuit 6

2510-2L6-48
Bourns
1: CHF 66.75
108In Stock

Mfr. Part No.
2510-2L6-48

Mouser Part No
652-2510-2L6-48

Bourns

Industrial Surge Protectors DATA and SIGNAL SPD,2L,110V,Circuit 6

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Datasheet

108In Stock

CHF 66.75

CHF 55.60

CHF 52.69

CHF 52.68

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Min.: 1
Mult.: 1

Automotive Fuses Fuse - Mega 70V (SF51) 2-M8 holes 250A

0998250.UX-2M8
Littelfuse
1: CHF 11.04
2’704In Stock

Mfr. Part No.
0998250.UX-2M8

Mouser Part No
576-0998250.UX-2M8

Littelfuse

Automotive Fuses Fuse - Mega 70V (SF51) 2-M8 holes 250A

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Datasheet

2’704In Stock

CHF 11.04

CHF 9.63

CHF 8.99

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 5.0SMDJ - A 400V

5.0SMDJ400A
Littelfuse
1: CHF 2.45
2’858In Stock

Mfr. Part No.
5.0SMDJ400A

Mouser Part No
576-5.0SMDJ400A

Littelfuse

ESD Protection Diodes / TVS Diodes 5.0SMDJ - A 400V

Datasheet

2’858In Stock

Cut Tape

CHF 2.45

CHF 1.59

CHF 1.17

CHF 0.992

CHF 0.917

Reel

CHF 0.917

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

ESD Protection Diodes / TVS Diodes Zen TVS 5000W 33V Bi DO-214AB TR13

SZ5KASMC33CAT3G
Littelfuse
1: CHF 2.94
3’560In Stock

Mfr. Part No.
SZ5KASMC33CAT3G

Mouser Part No
576-SZ5KASMC33CAT3G

Littelfuse

ESD Protection Diodes / TVS Diodes Zen TVS 5000W 33V Bi DO-214AB TR13

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Datasheet

3’560In Stock

Cut Tape

CHF 2.94

CHF 1.92

CHF 1.51

CHF 1.45

Reel

CHF 1.20

View

MouseReel Available

Min.: 1
Mult.: 1

: 2’500

Varistors 35VAC 45VDC 1800pF AEC-Q200

V45MLA1812NRAUTO
Littelfuse
1: CHF 2.45
1’404In Stock

Mfr. Part No.
V45MLA1812NRAUTO

Mouser Part No
576-V45MLA1812NRAUTO

Littelfuse

Varistors 35VAC 45VDC 1800pF AEC-Q200

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Datasheet

1’404In Stock

Cut Tape

CHF 2.45

CHF 1.77

CHF 1.67

CHF 1.42

Reel

CHF 1.04

View

MouseReel Available

Min.: 1
Mult.: 1

: 1’000

SCR Modules Bipolar Module - Thyristor ComPack

MCMA700PD1600CB
IXYS
1: CHF 261.41
74In Stock
3Expected 10/6/2026

Mfr. Part No.
MCMA700PD1600CB

Mouser Part No
747-MCMA700PD1600CB

IXYS

SCR Modules Bipolar Module - Thyristor ComPack

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Datasheet

74In Stock

3Expected 10/6/2026

CHF 261.41

CHF 210.74

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes Zen TVS 5000W 20V Bi DO-214AB TR13

SZ5KASMC20CAT3G
Littelfuse
1: CHF 2.94
7’370In Stock

Mfr. Part No.
SZ5KASMC20CAT3G

Mouser Part No
576-SZ5KASMC20CAT3G

Littelfuse

ESD Protection Diodes / TVS Diodes Zen TVS 5000W 20V Bi DO-214AB TR13

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Datasheet

7’370In Stock

Cut Tape

CHF 2.94

CHF 1.92

CHF 1.51

CHF 1.45

Reel

CHF 1.20

CHF 1.11

MouseReel Available

Min.: 1
Mult.: 1

: 2’500

Varistors 14mm Radial Disc MOV - Kinked Leads, T&R

MOV-14D271KKTR
Bourns
1: CHF 0.676
17’499In Stock

Mfr. Part No.
MOV-14D271KKTR

Mouser Part No
652-MOV-14D271KKTR

Bourns

Varistors 14mm Radial Disc MOV - Kinked Leads, T&R

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Datasheet

17’499In Stock

Cut Tape

CHF 0.676

CHF 0.407

CHF 0.256

CHF 0.225

Reel

CHF 0.192

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SMF DO219AB

SMF24A-HE3_A08
Vishay Semiconductors
1: CHF 0.418
23’680In Stock

Mfr. Part No.
SMF24A-HE3_A08

Mouser Part No
78-SMF24A-HE3A08

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SMF DO219AB

Datasheet

23’680In Stock

Cut Tape

CHF 0.418

CHF 0.264

CHF 0.168

CHF 0.135

Reel

CHF 0.095

View

Min.: 1
Mult.: 1

: 3’000

Surface Mount Fuses FUSE 32V HIGH I2T 0603 TL 3A

0408003.WR
Littelfuse
1: CHF 1.35
4’418In Stock

Mfr. Part No.
0408003.WR

Mouser Part No
576-0408003.WR

Littelfuse

Surface Mount Fuses FUSE 32V HIGH I2T 0603 TL 3A

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Datasheet

4’418In Stock

Cut Tape

CHF 1.35

CHF 1.17

CHF 1.09

CHF 0.901

View

Reel

CHF 0.578

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

NTC (Negative Temperature Coefficient) Thermistors 10 dia Power NTC 15ohm Y kink bulk

BN-LG10Y150MYB
Bourns
1: CHF 0.33
15’058In Stock

Mfr. Part No.
BN-LG10Y150MYB

Mouser Part No
652-BN-LG10Y150MYB

Bourns

NTC (Negative Temperature Coefficient) Thermistors 10 dia Power NTC 15ohm Y kink bulk

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Datasheet

15’058In Stock

CHF 0.33

CHF 0.296

CHF 0.259

CHF 0.227

View

Min.: 1
Mult.: 1

Automotive Fuses POWrFuse BD 275Vac 500Vdc 15A

PF-KB1-15
Bourns
1: CHF 17.24
144In Stock

Mfr. Part No.
PF-KB1-15

Mouser Part No
652-PF-KB1-15

Bourns

Automotive Fuses POWrFuse BD 275Vac 500Vdc 15A

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Datasheet

144In Stock

CHF 17.24

CHF 15.28

CHF 15.23

CHF 13.93

Min.: 1
Mult.: 1

Connectorised Surge Protectors Combined Ethernet Surge Protective Device (SPD) and POE 48V injector/splitter

MSP-VM48/RINJ
Citel
1: CHF 123.63
20In Stock

Mfr. Part No.
MSP-VM48/RINJ

Mouser Part No
703-MSP-VM48/RINJ

Citel

Connectorised Surge Protectors Combined Ethernet Surge Protective Device (SPD) and POE 48V injector/splitter

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Datasheet

20In Stock

CHF 123.63

CHF 102.50

CHF 96.74

CHF 96.72

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 600W,16V 5%, DFN3820A TVS

6DFN16A-M3/I
Vishay Semiconductors
1: CHF 0.595
27’820In Stock

Mfr. Part No.
6DFN16A-M3/I

Mouser Part No
78-6DFN16A-M3/I

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 600W,16V 5%, DFN3820A TVS

Learn More

Datasheet

27’820In Stock

Cut Tape

CHF 0.595

CHF 0.366

CHF 0.235

CHF 0.179

Reel

CHF 0.119

View

Min.: 1
Mult.: 1

: 14’000

ESD Protection Diodes / TVS Diodes 600W,24V 5%, DFN3820A TVS

6DFN24A-M3/I
Vishay Semiconductors
1: CHF 0.595
26’751In Stock

Mfr. Part No.
6DFN24A-M3/I

Mouser Part No
78-6DFN24A-M3/I

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 600W,24V 5%, DFN3820A TVS

Learn More

Datasheet

26’751In Stock

Cut Tape

CHF 0.595

CHF 0.367

CHF 0.236

CHF 0.18

View

Reel

CHF 0.104

Min.: 1
Mult.: 1

: 14’000

ESD Protection Diodes / TVS Diodes 600W,33V 5%, DFN3820A TVS

6DFN33A-M3/I
Vishay Semiconductors
1: CHF 0.579
27’287In Stock

Mfr. Part No.
6DFN33A-M3/I

Mouser Part No
78-6DFN33A-M3/I

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 600W,33V 5%, DFN3820A TVS

Learn More

Datasheet

27’287In Stock

Cut Tape

CHF 0.579

CHF 0.356

CHF 0.228

CHF 0.174

View

Reel

CHF 0.104

Min.: 1
Mult.: 1

: 14’000

ESD Protection Diodes / TVS Diodes MSMP - A 8V

MSMP8.0AHM3/H
Vishay Semiconductors
1: CHF 0.322
44’805In Stock

Mfr. Part No.
MSMP8.0AHM3/H

Mouser Part No
78-MSMP8.0AHM3/H

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes MSMP - A 8V

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Datasheet

44’805In Stock

Cut Tape

CHF 0.322

CHF 0.143

CHF 0.124

CHF 0.094

Reel

CHF 0.054

View

MouseReel Available

Min.: 1
Mult.: 1

: 4’500

ESD Protection Diodes / TVS Diodes T4F - A 43V

T4F43AHM3/H
Vishay Semiconductors
1: CHF 0.371
35’928In Stock

Mfr. Part No.
T4F43AHM3/H

Mouser Part No
78-T4F43AHM3/H

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes T4F - A 43V

Learn More

Datasheet

35’928In Stock

Cut Tape

CHF 0.371

CHF 0.175

CHF 0.142

CHF 0.11

Reel

CHF 0.08

View

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

ESD Protection Diodes / TVS Diodes T4F - A 51V

T4F51AHM3/H
Vishay Semiconductors
1: CHF 0.217
35’790In Stock

Mfr. Part No.
T4F51AHM3/H

Mouser Part No
78-T4F51AHM3/H

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes T4F - A 51V

Learn More

Datasheet

35’790In Stock

Cut Tape

CHF 0.217

CHF 0.115

CHF 0.098

CHF 0.08

Reel

CHF 0.07

View

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

ESD Protection Diodes / TVS Diodes 4-Line 3.3V 0.3pF ESD SMF2510N10 Z-Ultra

RCLAMP03354P.C
Semtech
1: CHF 0.955
11’319In Stock

Mfr. Part No.
RCLAMP03354P.C

Mouser Part No
947-RCLAMP03354P.C

Semtech

ESD Protection Diodes / TVS Diodes 4-Line 3.3V 0.3pF ESD SMF2510N10 Z-Ultra

Learn More

Datasheet

11’319In Stock

Cut Tape

CHF 0.955

CHF 0.548

CHF 0.469

CHF 0.371

Reel

CHF 0.279

View

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

Circuit Protection

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