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Circuit Protection

Circuit Protection devices and components are available at Mouser from industry leading manufacturers. Mouser is an authorized distributor for many circuit protection manufacturers including Bourns, Eaton, TDK, Littelfuse, Semtech, Vishay, & more.
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Types of Circuit Protection

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Results: 360,063

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Part #

ESD Protection Diodes / TVS Diodes 5.0SMDJ - CA 440V

5.0SMDJ440CA
Littelfuse
1: $3.32
3,362In Stock
3,000Expected 17/12/2026

Mfr. Part No.
5.0SMDJ440CA

Mouser Part No
576-5.0SMDJ440CA

Littelfuse

ESD Protection Diodes / TVS Diodes 5.0SMDJ - CA 440V

Datasheet

3,362In Stock

3,000Expected 17/12/2026

Cut Tape

$3.32

$1.94

$1.49

$1.23

$1.21

Reel

$1.06

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

PTC (Positive Temperature Coefficient) Thermistors 35ohms 10A 410V 30%

PTC305C20
Vishay / Cera-Mite
1: $16.00
548In Stock

Mfr. Part No.
PTC305C20

Mouser Part No
75-PTC305C20

Vishay / Cera-Mite

PTC (Positive Temperature Coefficient) Thermistors 35ohms 10A 410V 30%

Datasheet

548In Stock

$16.00

$14.14

$12.67

$12.00

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Min.: 1
Mult.: 1

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

5.0SMDJ400A
Littelfuse
1: $3.05
1,805In Stock

Mfr. Part No.
5.0SMDJ400A

Mouser Part No
576-5.0SMDJ400A

Littelfuse

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

Datasheet

1,805In Stock

Cut Tape

$3.05

$1.98

$1.45

$1.23

$1.14

Reel

$1.14

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

SZ5KASMC33CAT3G
Littelfuse
1: $3.65
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

$3.65

$2.38

$1.87

$1.58

Reel

$1.49

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Varistors 35VAC 45VDC 1800pF AEC-Q200

V45MLA1812NRAUTO
Littelfuse
1: $3.05
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

$3.05

$2.20

$2.07

$1.77

Reel

$1.29

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Fuse Holder Inline Fuseholder Unassembled 150330

01500330HXU
Littelfuse
1: $3.92
4,832In Stock

Mfr. Part No.
01500330HXU

Mouser Part No
576-01500330HXU

Littelfuse

Fuse Holder Inline Fuseholder Unassembled 150330

Datasheet

4,832In Stock

$3.92

$3.57

$3.45

$2.71

View

Min.: 1
Mult.: 1

Varistors 60VAC 85VDC 1100pF AEC-Q200

V85MLA1812NRAUTO
Littelfuse
1: $3.05
1,871In Stock

Mfr. Part No.
V85MLA1812NRAUTO

Mouser Part No
576-V85MLA1812NRAUTO

Littelfuse

Varistors 60VAC 85VDC 1100pF AEC-Q200

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Datasheet

1,871In Stock

Cut Tape

$3.05

$2.20

$2.07

$1.77

Reel

$1.22

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SMF DO219AB

SMF24A-HE3_A08
Vishay Semiconductors
1: $0.52
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

$0.52

$0.328

$0.209

$0.167

Reel

$0.119

View

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 8.0SMDJ - CA 110V

8.0SMDJ110CA
Littelfuse
1: $5.39
9,053In Stock

Mfr. Part No.
8.0SMDJ110CA

Mouser Part No
576-8.0SMDJ110CA

Littelfuse

ESD Protection Diodes / TVS Diodes 8.0SMDJ - CA 110V

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Datasheet

9,053In Stock

Cut Tape

$5.39

$3.58

$2.89

$2.57

$2.25

Reel

$2.25

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

NTC (Negative Temperature Coefficient) Thermistors Uni-Curve w/ bare leads & epoxy

192-503QET-A01
Honeywell
1: $50.84
859In Stock

Mfr. Part No.
192-503QET-A01

Mouser Part No
785-192-503QET-A01

Honeywell

NTC (Negative Temperature Coefficient) Thermistors Uni-Curve w/ bare leads & epoxy

Datasheet

859In Stock

$50.84

$46.22

$42.37

$40.47

View

Min.: 1
Mult.: 1

SCR Modules Bipolar Module - Thyristor ComPack

MCMA700PD1600CB
IXYS
1: $322.25
65In Stock
42On Order

Mfr. Part No.
MCMA700PD1600CB

Mouser Part No
747-MCMA700PD1600CB

IXYS

SCR Modules Bipolar Module - Thyristor ComPack

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Datasheet

65In Stock

42On Order

$322.25

$261.80

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors RADIAL LEAD DISC POT ALUMTAB HSG NTC TER

A-850
Amphenol Advanced Sensors
1: $51.76
381In Stock
253On Order

Mfr. Part No.
A-850

Mouser Part No
527-A-850

Amphenol Advanced Sensors

NTC (Negative Temperature Coefficient) Thermistors RADIAL LEAD DISC POT ALUMTAB HSG NTC TER

Learn More

381In Stock

253On Order

$51.76

$47.32

$43.59

$40.87

View

Min.: 1
Mult.: 1

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

0998250.UX-2M8
Littelfuse
1: $13.72
2,478In 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

2,478In Stock

$13.72

$12.83

Min.: 1
Mult.: 1

Thermal Cut-offs TCO, High Current, SMD, 72C, Self Hold AEC-Q200

SD72ABB
Bourns
1: $2.83
3,479In Stock

Mfr. Part No.
SD72ABB

Mouser Part No
652-SD72ABB

Bourns

Thermal Cut-offs TCO, High Current, SMD, 72C, Self Hold AEC-Q200

Learn More

Datasheet

3,479In Stock

Cut Tape

$2.83

$2.45

$1.98

$1.68

View

Reel

$1.13

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Thermal Cut-offs THERMAL PROTECTOR

RP-1B
Sensata Technologies
1: $34.88
500In Stock

Mfr. Part No.
RP-1B

Mouser Part No
682-RP-1B

Sensata Technologies

Thermal Cut-offs THERMAL PROTECTOR

Datasheet

500In Stock

$34.88

Min.: 1
Mult.: 1

Circuit Breaker Accessories LG Handle Mech Close Couple Black

LHMCCB
Eaton Electrical
1: $351.70
1In Stock
New Product

Mfr. Part No.
LHMCCB

Mouser Part No
504-LHMCCB

New Product

Eaton Electrical

Circuit Breaker Accessories LG Handle Mech Close Couple Black

Datasheet

1In Stock

$351.70

$269.90

$254.03

$228.17

View

Min.: 1
Mult.: 1

Circuit Breaker Accessories PDG3 UVR, 380-440VAC, SCREW TERMINAL

PDG3XUV440ACV
Eaton Electrical
1: $529.21
1In Stock
New Product

Mfr. Part No.
PDG3XUV440ACV

Mouser Part No
504-PDG3XUV440ACV

New Product

Eaton Electrical

Circuit Breaker Accessories PDG3 UVR, 380-440VAC, SCREW TERMINAL

Datasheet

1In Stock

$529.21

$438.40

$404.10

View

Min.: 1
Mult.: 1

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

SMA6F33CA-M3/H
Vishay Semiconductors
1: $0.68
3,280In Stock
New Product

Mfr. Part No.
SMA6F33CA-M3/H

Mouser Part No
78-SMA6F33CA-M3\H

New Product

Vishay Semiconductors

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

Datasheet

3,280In Stock

Cut Tape

$0.68

$0.422

$0.27

$0.205

Reel

$0.157

View

Min.: 1
Mult.: 1

: 3,500

Circuit Breaker Accessories PDG6 AUXILIARY SWITCHES, 4 FORM C

PDG6X4AC
Eaton Electrical
1: $1,042.46
1In Stock
New Product

Mfr. Part No.
PDG6X4AC

Mouser Part No
504-PDG6X4AC

New Product

Eaton Electrical

Circuit Breaker Accessories PDG6 AUXILIARY SWITCHES, 4 FORM C

Datasheet

1In Stock

$1,042.46

Min.: 1
Mult.: 1

Circuit Breaker Accessories UNDERVOLTAGE RELEASE

NZM4-XU480-525AC
Eaton Electrical
1: $855.74
1In Stock
New Product

Mfr. Part No.
NZM4-XU480-525AC

Mouser Part No
504-NZM4-XU480-525AC

New Product

Eaton Electrical

Circuit Breaker Accessories UNDERVOLTAGE RELEASE

Datasheet

1In Stock

$855.74

$803.49

$767.80

View

Min.: 1
Mult.: 1

Circuit Breaker Accessories 1A/1B ALARM SW

MA1L1RPK
Eaton Electrical
1: $572.69
1In Stock
New Product

Mfr. Part No.
MA1L1RPK

Mouser Part No
504-MA1L1RPK

New Product

Eaton Electrical

Circuit Breaker Accessories 1A/1B ALARM SW

1In Stock

$572.69

$441.00

$421.22

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 600W,28V 5%, SlimSMA BIDIR TVS

SMA6F28CA-M3/H
Vishay Semiconductors
1: $0.69
3,460In Stock
New Product

Mfr. Part No.
SMA6F28CA-M3/H

Mouser Part No
78-SMA6F28CA-M3\H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 600W,28V 5%, SlimSMA BIDIR TVS

Datasheet

3,460In Stock

Cut Tape

$0.69

$0.423

$0.271

$0.206

Reel

$0.158

View

Min.: 1
Mult.: 1

: 3,500

ESD Protection Diodes / TVS Diodes TVS ARRAY

SP3130E-01WTG
Littelfuse
1: $0.53
18,404In Stock

Mfr. Part No.
SP3130E-01WTG

Mouser Part No
576-SP3130E-01WTG

Littelfuse

ESD Protection Diodes / TVS Diodes TVS ARRAY

Datasheet

18,404In Stock

Cut Tape

$0.53

$0.243

$0.205

$0.158

Reel

$0.096

View

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes TVS 5KW AECQ-101 TR13 RoHS

TP5.0SMDJ100A
Littelfuse
1: $5.40
5,087In Stock

Mfr. Part No.
TP5.0SMDJ100A

Mouser Part No
576-TP5.0SMDJ100A

Littelfuse

ESD Protection Diodes / TVS Diodes TVS 5KW AECQ-101 TR13 RoHS

Learn More

Datasheet

5,087In Stock

Cut Tape

$5.40

$2.98

$2.72

$2.41

Reel

$2.04

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes TVS 5KW AECQ-101 TR13 RoHS

TP5.0SMDJ150A
Littelfuse
1: $5.40
5,540In Stock

Mfr. Part No.
TP5.0SMDJ150A

Mouser Part No
576-TP5.0SMDJ150A

Littelfuse

ESD Protection Diodes / TVS Diodes TVS 5KW AECQ-101 TR13 RoHS

Learn More

Datasheet

5,540In Stock

Cut Tape

$5.40

$3.29

$2.81

$2.49

Reel

$2.04

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Circuit Protection

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