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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 #

PTC Thermistors

PRG21BC1R0MM1RK
Murata Electronics
1: $0.676
25,091In Stock

Mfr. Part #
PRG21BC1R0MM1RK

Mouser Part #
81-PRG21BC1R0MM1RK

Murata Electronics

PTC Thermistors

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Datasheet

25,091In Stock

Cut Tape

$0.676

$0.634

$0.592

$0.563

View

Reel

$0.335

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

NTC Thermistors 10K OHM 3%

NTCDP4AG103HCFCBA
TDK
1: $10.96
344In Stock

Mfr. Part #
NTCDP4AG103HCFCBA

Mouser Part #
810-NTCDP4AG103HCFCB

TDK

NTC Thermistors 10K OHM 3%

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Datasheet

344In Stock

$10.96

$9.91

$9.50

$9.04

View

Min.: 1
Mult.: 1

NTC Thermistors Case EIA 0201 B= 1% ,47kO 1%

NTCG064BF473FTBX
TDK
1: $0.13
66,490In Stock

Mfr. Part #
NTCG064BF473FTBX

Mouser Part #
810-NTCG064BF473FTBX

TDK

NTC Thermistors Case EIA 0201 B= 1% ,47kO 1%

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Datasheet

66,490In Stock

Cut Tape

$0.13

$0.096

$0.083

$0.077

View

Reel

$0.044

MouseReel Available

Min.: 1
Mult.: 1

: 15,000

NTC Thermistors 0201 100Kohm 1% AEC-Q200 125C

NTCG064EF104FTDSX
TDK
1: $0.143
29,150In Stock

Mfr. Part #
NTCG064EF104FTDSX

Mouser Part #
810-NTCG064EF104FTDX

TDK

NTC Thermistors 0201 100Kohm 1% AEC-Q200 125C

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Datasheet

29,150In Stock

Cut Tape

$0.143

$0.134

$0.117

$0.109

View

Reel

$0.065

MouseReel Available

Min.: 1
Mult.: 1

: 15,000

NTC Thermistors 0402 100Kohm 0.5% AEC-Q200 125C

NTCG104ED104DTDSX
TDK
1: $0.364
14,397In Stock

Mfr. Part #
NTCG104ED104DTDSX

Mouser Part #
810-NTCG104ED104DTDX

TDK

NTC Thermistors 0402 100Kohm 0.5% AEC-Q200 125C

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Datasheet

14,397In Stock

Cut Tape

$0.364

$0.333

$0.294

$0.27

View

Reel

$0.186

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

SCR Modules 1200 Volt 230 Amp

VS-VSKE236/12PBF
Vishay Semiconductors
1: $79.33
45In Stock

Mfr. Part #
VS-VSKE236/12PBF

Mouser Part #
844-VSKE236/12PBF

Vishay Semiconductors

SCR Modules 1200 Volt 230 Amp

Datasheet

45In Stock

$79.33

$63.02

Min.: 1
Mult.: 1

Triacs 16A 50mA 800V IGT 3 QUAD

BTB16-800BW3G
Littelfuse
1: $3.15
3,320In Stock

Mfr. Part #
BTB16-800BW3G

Mouser Part #
863-BTB16-800BW3G

Littelfuse

Triacs 16A 50mA 800V IGT 3 QUAD

Datasheet

3,320In Stock

$3.15

$1.56

$1.40

$1.19

Min.: 1
Mult.: 1

Triacs Triacs

MAC8NG
Littelfuse
1: $2.99
1,833In Stock

Mfr. Part #
MAC8NG

Mouser Part #
863-MAC8NG

Littelfuse

Triacs Triacs

Datasheet

1,833In Stock

Cut Tape

$2.99

$1.74

$1.28

$1.10

Reel

$1.10

Min.: 1
Mult.: 1

: 1,000

Triacs Triacs

MAC8SNG
Littelfuse
1: $2.70
3,754In Stock

Mfr. Part #
MAC8SNG

Mouser Part #
863-MAC8SNG

Littelfuse

Triacs Triacs

Datasheet

3,754In Stock

Cut Tape

$2.70

$1.61

$1.22

$1.07

Reel

$0.965

Min.: 1
Mult.: 1

: 1,000

NTC Thermistors 22 Ohms 2900 3%

B57164K0220K000
TDK
1: $0.767
8,772In Stock

Mfr. Part #
B57164K0220K000

Mouser Part #
871-B57164K220K

TDK

NTC Thermistors 22 Ohms 2900 3%

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Datasheet

8,772In Stock

$0.767

$0.722

$0.675

$0.642

View

Min.: 1
Mult.: 1

Inrush Current Limiters S 236/16/M

B57236S0160M000
TDK
1: $1.38
5,883In Stock

Mfr. Part #
B57236S0160M000

Mouser Part #
871-B57236S0160M000

TDK

Inrush Current Limiters S 236/16/M

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Datasheet

5,883In Stock

$1.38

$1.26

$1.05

$0.966

View

Min.: 1
Mult.: 1

Inrush Current Limiters S 236/80 M

B57236S0800M000
TDK
1: $1.31
7,579In Stock

Mfr. Part #
B57236S0800M000

Mouser Part #
871-B57236S0800M000

TDK

Inrush Current Limiters S 236/80 M

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Datasheet

7,579In Stock

$1.31

$1.17

$0.995

$0.918

View

Min.: 1
Mult.: 1

Inrush Current Limiters S 237/7 M51

B57237S0709M051
TDK
1: $1.64
2,291In Stock

Mfr. Part #
B57237S0709M051

Mouser Part #
871-B57237S0709M051

TDK

Inrush Current Limiters S 237/7 M51

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Datasheet

2,291In Stock

Cut Tape

$1.64

$1.50

$1.29

$1.19

Reel

$0.88

View

Min.: 1
Mult.: 1

: 2,000

Inrush Current Limiters 10 Ohms 3.7amps 3060k

B57237S0100M054
TDK
1: $1.99
16,441In Stock

Mfr. Part #
B57237S0100M054

Mouser Part #
871-B57237S100M54

TDK

Inrush Current Limiters 10 Ohms 3.7amps 3060k

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Datasheet

16,441In Stock

$1.99

$1.77

$1.52

$1.40

Reel

$0.898

View

Min.: 1
Mult.: 1

: 1,500

Inrush Current Limiters S 238/2.5/M

B57238S0259M000
TDK
1: $1.27
2,538In Stock

Mfr. Part #
B57238S0259M000

Mouser Part #
871-B57238S0259M000

TDK

Inrush Current Limiters S 238/2.5/M

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Datasheet

2,538In Stock

$1.27

$1.17

$0.969

$0.894

View

Min.: 1
Mult.: 1

NTC Thermistors 10k 4000 3%

B57321V2103J60
TDK
1: $0.351
88,275In Stock

Mfr. Part #
B57321V2103J60

Mouser Part #
871-B57321V2103J60

TDK

NTC Thermistors 10k 4000 3%

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Datasheet

88,275In Stock

Cut Tape

$0.351

$0.286

$0.251

$0.199

Reel

$0.142

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

NTC Thermistors 100.8kohm 4092 1.5% 50mW Probe K550

B57550K0104A001
TDK
1: $6.58
2,816In Stock

Mfr. Part #
B57550K0104A001

Mouser Part #
871-B57550K0104A001

TDK

NTC Thermistors 100.8kohm 4092 1.5% 50mW Probe K550

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Datasheet

2,816In Stock

$6.58

$5.92

$5.67

$5.37

View

Min.: 1
Mult.: 1

NTC Thermistors 1K J62 B-3450 NTC Thermistor 0805

B57620C5102J062
TDK
1: $0.507
8,777In Stock

Mfr. Part #
B57620C5102J062

Mouser Part #
871-B57620C5102J062

TDK

NTC Thermistors 1K J62 B-3450 NTC Thermistor 0805

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Datasheet

8,777In Stock

Cut Tape

$0.507

$0.473

$0.419

$0.398

Reel

$0.338

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

NTC Thermistors 2.2k 3900 1%

B57891S0222F008
TDK
1: $2.26
1,772In Stock

Mfr. Part #
B57891S0222F008

Mouser Part #
871-B57891S222F8

TDK

NTC Thermistors 2.2k 3900 1%

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Datasheet

1,772In Stock

$2.26

$2.12

$1.91

$1.82

View

Min.: 1
Mult.: 1

Varistors 25VAC 10% 7mm StandarD

B72207S0250K211
TDK
1: $0.442
21,971In Stock

Mfr. Part #
B72207S0250K211

Mouser Part #
871-B72207S0250K211

TDK

Varistors 25VAC 10% 7mm StandarD

Learn More

Datasheet

21,971In Stock

Cut Tape

$0.442

$0.269

$0.231

$0.213

View

Reel

$0.147

Min.: 1
Mult.: 1

: 7,500

Varistors 11VAC 10% 10mm StandarD

B72210S0110K101
TDK
1: $0.481
13,339In Stock

Mfr. Part #
B72210S0110K101

Mouser Part #
871-B72210S110K101

TDK

Varistors 11VAC 10% 10mm StandarD

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Datasheet

13,339In Stock

$0.481

$0.296

$0.256

$0.237

View

Min.: 1
Mult.: 1

Varistors 550VAC 10% 14mm MP AdvanceD

B72214P2551K101
TDK
1: $1.47
3,196In Stock

Mfr. Part #
B72214P2551K101

Mouser Part #
871-B72214P2551K101

TDK

Varistors 550VAC 10% 14mm MP AdvanceD

Datasheet

3,196In Stock

$1.47

$0.852

$0.718

$0.666

$0.664

Min.: 1
Mult.: 1

Varistors 350VAC 10% 14mm StandarD

B72214S0351K103
TDK
1: $0.598
8,681In Stock

Mfr. Part #
B72214S0351K103

Mouser Part #
871-B72214S0351K103

TDK

Varistors 350VAC 10% 14mm StandarD

Datasheet

8,681In Stock

$0.598

$0.377

$0.328

$0.304

View

Min.: 1
Mult.: 1

Varistors 230VAC 10% 14mm StandarD

B72214S0231K101
TDK
1: $0.52
9,584In Stock

Mfr. Part #
B72214S0231K101

Mouser Part #
871-B72214S231K101

TDK

Varistors 230VAC 10% 14mm StandarD

Learn More

Datasheet

9,584In Stock

$0.52

$0.326

$0.283

$0.263

View

Min.: 1
Mult.: 1

Varistors 20VAC 10% 20mm StandarD

B72220S0200K131
TDK
1: $1.43
4,078In Stock

Mfr. Part #
B72220S0200K131

Mouser Part #
871-B72220S0200K131

TDK

Varistors 20VAC 10% 20mm StandarD

Learn More

Datasheet

4,078In Stock

Cut Tape

$1.43

$0.932

$0.823

$0.77

Reel

$0.606

View

Min.: 1
Mult.: 1

: 1,500

Circuit Protection

Types of Circuit Protection

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