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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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Part #

Varistors PV 300V 10%

PV300K3225R2
Bourns
1: $0.58
8,824In Stock

Mfr. Part No.
PV300K3225R2

Mouser Part No
652-PV300K3225R2

Bourns

Varistors PV 300V 10%

Learn More

Datasheet

8,824In Stock

Cut Tape

$0.58

$0.364

$0.317

$0.295

Reel

$0.269

View

Min.: 1
Mult.: 1

: 1,000

Thermal Cut-offs 77C Low Profile SMD HC TCO

SC77AAB
Bourns
1: $1.06
9,544In Stock

Mfr. Part No.
SC77AAB

Mouser Part No
652-SC77AAB

Bourns

Thermal Cut-offs 77C Low Profile SMD HC TCO

Learn More

Datasheet

9,544In Stock

Cut Tape

$1.06

$0.973

$0.808

$0.67

View

Reel

$0.45

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Thermal Cut-offs 85C Reinforced Cover SMD HC TCO

SC85AAA
Bourns
1: $1.30
5,476In Stock

Mfr. Part No.
SC85AAA

Mouser Part No
652-SC85AAA

Bourns

Thermal Cut-offs 85C Reinforced Cover SMD HC TCO

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Datasheet

5,476In Stock

Cut Tape

$1.30

$1.20

$0.989

$0.906

View

Reel

$0.575

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses 0.5A Fast Acting 0402 SinglFuse

SF-0402F050-2
Bourns
1: $0.54
15,052In Stock

Mfr. Part No.
SF-0402F050-2

Mouser Part No
652-SF-0402F050-2

Bourns

Surface Mount Fuses 0.5A Fast Acting 0402 SinglFuse

Learn More

Datasheet

15,052In Stock

Cut Tape

$0.54

$0.493

$0.41

$0.378

View

Reel

$0.247

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

Surface Mount Fuses 0.63A Slow Blow 0603 SinglFuse

SF-0603S063-2
Bourns
1: $0.42
8,937In Stock

Mfr. Part No.
SF-0603S063-2

Mouser Part No
652-SF-0603S063-2

Bourns

Surface Mount Fuses 0.63A Slow Blow 0603 SinglFuse

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Datasheet

8,937In Stock

Cut Tape

$0.42

$0.375

$0.334

$0.305

View

Reel

$0.226

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses 0.5A Fast Acting 1206 SinglFuse

SF-1206F050-2
Bourns
1: $0.58
14,480In Stock

Mfr. Part No.
SF-1206F050-2

Mouser Part No
652-SF-1206F050-2

Bourns

Surface Mount Fuses 0.5A Fast Acting 1206 SinglFuse

Learn More

Datasheet

14,480In Stock

Cut Tape

$0.58

$0.477

$0.402

$0.334

View

Reel

$0.205

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Thyristor Surge Protection Devices - TSPD Sidacs Very Low Volt Bidirectional

TISP4025H1BJR-S
Bourns
1: $1.47
9,422In Stock

Mfr. Part No.
TISP4025H1BJR-S

Mouser Part No
652-TISP4025H1BJR-S

Bourns

Thyristor Surge Protection Devices - TSPD Sidacs Very Low Volt Bidirectional

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Datasheet

9,422In Stock

Cut Tape

$1.47

$0.819

$0.542

$0.422

$0.384

Reel

$0.337

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Thyristor Surge Protection Devices - TSPD 58V 600mA

TISP4070M3BJR-S
Bourns
1: $1.27
12,937In Stock
14,991On Order

Mfr. Part No.
TISP4070M3BJR-S

Mouser Part No
652-TISP4070M3BJR-S

Bourns

Thyristor Surge Protection Devices - TSPD 58V 600mA

Learn More

Datasheet

12,937In Stock

14,991On Order

Cut Tape

$1.27

$0.734

$0.483

$0.375

Reel

$0.295

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Thyristor Surge Protection Devices - TSPD BI-DIRECTIONL PRTCTR 120volts

TISP4145M3BJR-S
Bourns
1: $1.17
8,401In Stock

Mfr. Part No.
TISP4145M3BJR-S

Mouser Part No
652-TISP4145M3BJR-S

Bourns

Thyristor Surge Protection Devices - TSPD BI-DIRECTIONL PRTCTR 120volts

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Datasheet

8,401In Stock

Cut Tape

$1.17

$0.734

$0.483

$0.375

Reel

$0.295

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Varistors ZV 40V 10%

ZV40K2220102NIR1
Bourns
1: $1.04
5,092In Stock

Mfr. Part No.
ZV40K2220102NIR1

Mouser Part No
652-ZV40K2220102NIR1

Bourns

Varistors ZV 40V 10%

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Datasheet

5,092In Stock

Cut Tape

$1.04

$0.675

$0.595

$0.557

Reel

$0.514

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Varistors ZV 60V 10%

ZV60K2220801NIR1
Bourns
1: $1.04
5,334In Stock

Mfr. Part No.
ZV60K2220801NIR1

Mouser Part No
652-ZV60K2220801NIR1

Bourns

Varistors ZV 60V 10%

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Datasheet

5,334In Stock

Cut Tape

$1.04

$0.675

$0.595

$0.557

Reel

$0.514

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

ESD Protection Diodes / TVS Diodes Low-Capacitance, 2/3/4/6-Channel, 15kV ESD-Protection Arrays for High-Speed Data Interfaces

MAX3202EEWS+T
Analog Devices / Maxim Integrated
1: $3.45
1,078In Stock

Mfr. Part No.
MAX3202EEWS+T

Mouser Part No
700-MAX3202EEWS+T

Analog Devices / Maxim Integrated

ESD Protection Diodes / TVS Diodes Low-Capacitance, 2/3/4/6-Channel, 15kV ESD-Protection Arrays for High-Speed Data Interfaces

Datasheet

1,078In Stock

Cut Tape

$3.45

$2.32

$1.85

$1.71

$1.54

Reel

$1.44

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Varistors WE-VS SMD 1206 490pF 100A 26VDC

82551200
Wurth Elektronik
1: $0.78
5,615In Stock

Mfr. Part No.
82551200

Mouser Part No
710-82551200

Wurth Elektronik

Varistors WE-VS SMD 1206 490pF 100A 26VDC

Datasheet

5,615In Stock

Cut Tape

$0.78

$0.744

$0.741

$0.726

View

Reel

$0.542

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Triacs RAIL TRIAC

BT134-800E,127
WeEn Semiconductors
1: $1.07
10,484In Stock

Mfr. Part No.
BT134-800E,127

Mouser Part No
771-BT134-800E127

WeEn Semiconductors

Triacs RAIL TRIAC

Datasheet

10,484In Stock

$1.07

$0.493

$0.437

$0.338

View

Min.: 1
Mult.: 1

Triacs 600V 8A

BT137-600,127
WeEn Semiconductors
1: $1.14
5,221In Stock

Mfr. Part No.
BT137-600,127

Mouser Part No
771-BT137-600

WeEn Semiconductors

Triacs 600V 8A

Datasheet

5,221In Stock

$1.14

$0.528

$0.468

$0.363

View

Min.: 1
Mult.: 1

Triacs RAIL TRIAC

BT139-600E,127
WeEn Semiconductors
1: $1.54
5,895In Stock

Mfr. Part No.
BT139-600E,127

Mouser Part No
771-BT139-600E127

WeEn Semiconductors

Triacs RAIL TRIAC

Learn More

Datasheet

5,895In Stock

$1.54

$0.726

$0.647

$0.508

View

Min.: 1
Mult.: 1

SCRs RAIL SCR

BT148-400R,127
WeEn Semiconductors
1: $1.05
7,158In Stock

Mfr. Part No.
BT148-400R,127

Mouser Part No
771-BT148-400R127

WeEn Semiconductors

SCRs RAIL SCR

Datasheet

7,158In Stock

$1.05

$0.485

$0.43

$0.332

View

Min.: 1
Mult.: 1

SCRs RAIL SCR

BT152X-800R,127
WeEn Semiconductors
1: $1.21
4,835In Stock

Mfr. Part No.
BT152X-800R,127

Mouser Part No
771-BT152X-800R127

WeEn Semiconductors

SCRs RAIL SCR

Datasheet

4,835In Stock

$1.21

$0.76

$0.72

$0.59

$0.55

Min.: 1
Mult.: 1

Triacs RAIL TRIAC

BTA140-600,127
WeEn Semiconductors
1: $2.45
3,640In Stock

Mfr. Part No.
BTA140-600,127

Mouser Part No
771-BTA140-600127

WeEn Semiconductors

Triacs RAIL TRIAC

Datasheet

3,640In Stock

$2.45

$1.56

$1.04

$0.864

View

Min.: 1
Mult.: 1

Triacs BTA206X-800CT/DG/TO-220F/STANDARD MARKING * HORIZONTAL, RAIL PACK

BTA206X-800CT/DGQ
WeEn Semiconductors
1: $1.23
5,648In Stock

Mfr. Part No.
BTA206X-800CT/DGQ

Mouser Part No
771-BTA206X800CTDGQ

WeEn Semiconductors

Triacs BTA206X-800CT/DG/TO-220F/STANDARD MARKING * HORIZONTAL, RAIL PACK

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Datasheet

5,648In Stock

$1.23

$0.573

$0.509

$0.396

View

Min.: 1
Mult.: 1

Triacs Thyristor TRIAC 800V 105A 3-Pin (2+Tab)

BTA312B-800C,118
WeEn Semiconductors
1: $1.74
5,347In Stock

Mfr. Part No.
BTA312B-800C,118

Mouser Part No
771-BTA312B-800C,118

WeEn Semiconductors

Triacs Thyristor TRIAC 800V 105A 3-Pin (2+Tab)

Datasheet

5,347In Stock

Cut Tape

$1.74

$1.11

$0.74

$0.54

Reel

$0.495

MouseReel Available

Min.: 1
Mult.: 1

: 800

Triacs Thyristor TRIAC 600V 150A 3-Pin (2+Tab)

BTA316B-600B,118
WeEn Semiconductors
1: $1.80
5,774In Stock

Mfr. Part No.
BTA316B-600B,118

Mouser Part No
771-BTA316B-600B,118

WeEn Semiconductors

Triacs Thyristor TRIAC 600V 150A 3-Pin (2+Tab)

Datasheet

5,774In Stock

Cut Tape

$1.80

$1.15

$0.768

$0.526

Reel

$0.519

MouseReel Available

Min.: 1
Mult.: 1

: 800

Triacs 800 V 1 A SOT223

Z0103NN0,135
WeEn Semiconductors
1: $0.59
35,424In Stock

Mfr. Part No.
Z0103NN0,135

Mouser Part No
771-Z0103NN0135

WeEn Semiconductors

Triacs 800 V 1 A SOT223

Datasheet

35,424In Stock

Cut Tape

$0.59

$0.365

$0.233

$0.176

Reel

$0.116

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

ESD Protection Diodes / TVS Diodes 3KW, 24V 5%,BIDIR,SMC TVS

SMC3K24CAHM3_A/H
Vishay Semiconductors
1: $2.46
3,327In Stock
2,550On Order

Mfr. Part No.
SMC3K24CAHM3_A/H

Mouser Part No
78-SMC3K24CAHM3_A/H

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 3KW, 24V 5%,BIDIR,SMC TVS

Learn More

Datasheet

3,327In Stock

2,550On Order

Cut Tape

$2.46

$1.57

$1.07

$0.912

Reel

$0.79

View

MouseReel Available

Min.: 1
Mult.: 1

: 850

NTC (Negative Temperature Coefficient) Thermistors

NCP03XH153J05RL
Murata Electronics
1: $0.12
52,117In Stock

Mfr. Part No.
NCP03XH153J05RL

Mouser Part No
81-NCP03XH153J05RL

Murata Electronics

NTC (Negative Temperature Coefficient) Thermistors

Learn More

Datasheet

52,117In Stock

Cut Tape

$0.12

$0.10

$0.088

$0.073

View

Reel

$0.054

MouseReel Available

Min.: 1
Mult.: 1

: 15,000

Circuit Protection

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