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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 #

Thyristor Surge Protection Devices - TSPD 120V

TISP4145H3BJR-S
Bourns
1: $1.89
11,304In Stock

Mfr. Part #
TISP4145H3BJR-S

Mouser Part #
652-TISP4145H3BJR-S

Bourns

Thyristor Surge Protection Devices - TSPD 120V

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Datasheet

11,304In Stock

Cut Tape

$1.89

$1.17

$0.768

$0.602

Reel

$0.469

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Thyristor Surge Protection Devices - TSPD BI-DIRECTIONL PRTCTR 200volts

TISP4265M3BJR-S
Bourns
1: $1.60
12,007In Stock

Mfr. Part #
TISP4265M3BJR-S

Mouser Part #
652-TISP4265M3BJR-S

Bourns

Thyristor Surge Protection Devices - TSPD BI-DIRECTIONL PRTCTR 200volts

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Datasheet

12,007In Stock

Cut Tape

$1.60

$1.00

$0.659

$0.512

Reel

$0.403

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Thyristor Surge Protection Devices - TSPD PROTECTOR - SINGLE BIDIRECTIONAL

TISP4310T3BJR-S
Bourns
1: $1.60
11,049In Stock

Mfr. Part #
TISP4310T3BJR-S

Mouser Part #
652-TISP4310T3BJR-S

Bourns

Thyristor Surge Protection Devices - TSPD PROTECTOR - SINGLE BIDIRECTIONAL

Datasheet

11,049In Stock

Cut Tape

$1.60

$1.00

$0.659

$0.512

Reel

$0.447

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Industrial Surge Protectors Panel Mount Heavy Duty AC Surge Suppressor, 50kA, 120/240V Split Phase

M50-120T-A
Citel
1: $255.33
8In Stock

Mfr. Part #
M50-120T-A

Mouser Part #
703-M50-120T-A

Citel

Industrial Surge Protectors Panel Mount Heavy Duty AC Surge Suppressor, 50kA, 120/240V Split Phase

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Datasheet

8In Stock

$255.33

$255.27

$225.20

$225.19

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Min.: 1
Mult.: 1

PTC Thermistors 150ohms 1% Linear

TFPT0603L1500FV
Vishay / Dale
1: $1.46
4,859In Stock

Mfr. Part #
TFPT0603L1500FV

Mouser Part #
71-TFPT0603L1500FV

Vishay / Dale

PTC Thermistors 150ohms 1% Linear

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Datasheet

4,859In Stock

Cut Tape

$1.46

$1.38

$1.29

$1.23

Reel

$0.935

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

PTC Thermistors PTC 1Kohms 5% Linear

TFPT0805L1001JM
Vishay / Dale
1: $1.43
4,345In Stock

Mfr. Part #
TFPT0805L1001JM

Mouser Part #
71-TFPT0805L1001JM

Vishay / Dale

PTC Thermistors PTC 1Kohms 5% Linear

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Datasheet

4,345In Stock

Cut Tape

$1.43

$1.07

$0.854

$0.803

View

Reel

$0.555

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes WE-VE ESD 0805 12Vdc 56pF

82350120560
Wurth Elektronik
1: $0.559
6,742In Stock

Mfr. Part #
82350120560

Mouser Part #
710-82350120560

Wurth Elektronik

ESD Protection Diodes / TVS Diodes WE-VE ESD 0805 12Vdc 56pF

Datasheet

6,742In Stock

Cut Tape

$0.559

$0.504

$0.501

$0.465

$0.428

Reel

$0.378

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Varistors WE-VEA MOV SMD Array 0508 5VDC 10pF

82380050100
Wurth Elektronik
1: $1.94
3,821In Stock

Mfr. Part #
82380050100

Mouser Part #
710-82380050100

Wurth Elektronik

Varistors WE-VEA MOV SMD Array 0508 5VDC 10pF

Datasheet

3,821In Stock

Cut Tape

$1.94

$1.44

$1.25

$1.24

View

Reel

$1.13

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

ESD Protection Diodes / TVS Diodes RASMID™ Series - Transient Voltage Suppressor

VS3V3BB1FST27N
ROHM Semiconductor
1: $0.481
49,950In Stock

Mfr. Part #
VS3V3BB1FST27N

Mouser Part #
755-VS3V3BB1FST27N

ROHM Semiconductor

ESD Protection Diodes / TVS Diodes RASMID™ Series - Transient Voltage Suppressor

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Datasheet

49,950In Stock

Cut Tape

$0.481

$0.311

$0.17

$0.135

View

Reel

$0.087

MouseReel Available

Min.: 1
Mult.: 1

: 27,000

ESD Protection Diodes / TVS Diodes 3KW 78V 5% BIDIRECT

SMC3K78CAHM3/57
Vishay Semiconductors
1: $4.33
1,700In Stock

Mfr. Part #
SMC3K78CAHM3/57

Mouser Part #
78-SMC3K78CAHM3/57

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 3KW 78V 5% BIDIRECT

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Datasheet

1,700In Stock

Cut Tape

$4.33

$2.35

$2.12

$1.63

Reel

$1.51

View

MouseReel Available

Min.: 1
Mult.: 1

: 850

ESD Protection Diodes / TVS Diodes 33V Vwm TransZorb eSMP TO-277A SMPC

SMPC33AN-M3/H
Vishay Semiconductors
1: $1.66
6,536In Stock

Mfr. Part #
SMPC33AN-M3/H

Mouser Part #
78-SMPC33AN-M3/H

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 33V Vwm TransZorb eSMP TO-277A SMPC

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Datasheet

6,536In Stock

Cut Tape

$1.66

$0.81

$0.685

$0.534

Reel

$0.419

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

ESD Protection Diodes / TVS Diodes 1500W 31.4-34.7Vbr AEC-Q101 Qualified

TPC33CAHM3/H
Vishay Semiconductors
1: $2.76
4,171In Stock

Mfr. Part #
TPC33CAHM3/H

Mouser Part #
78-TPC33CAHM3/H

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 1500W 31.4-34.7Vbr AEC-Q101 Qualified

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Datasheet

4,171In Stock

Cut Tape

$2.76

$1.40

$1.21

$0.996

Reel

$0.785

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

NTC Thermistors 3.3kOhm 5% PPS Resin B0/100:3970K+-2%

NTCRP3VG332JDGBEA
TDK
1: $15.99
528In Stock

Mfr. Part #
NTCRP3VG332JDGBEA

Mouser Part #
810-NTCRP3VG332JDGBE

TDK

NTC Thermistors 3.3kOhm 5% PPS Resin B0/100:3970K+-2%

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Datasheet

528In Stock

$15.99

$14.52

$13.96

$13.31

View

Min.: 1
Mult.: 1

NTC Thermistors NTC THERMISTOR EPOXY RADIAL

GA5K3A1A
TE Connectivity / Measurement Specialties
1: $5.50
1,472In Stock

Mfr. Part #
GA5K3A1A

Mouser Part #
824-GA5K3A1A

TE Connectivity / Measurement Specialties

NTC Thermistors NTC THERMISTOR EPOXY RADIAL

Datasheet

1,472In Stock

$5.50

$4.95

$4.60

$4.30

View

Min.: 1
Mult.: 1

Triacs ISO TO220 25A 35mA TRIAC

BTA25-600CW3G
Littelfuse
1: $8.75
509In Stock

Mfr. Part #
BTA25-600CW3G

Mouser Part #
863-BTA25-600CW3G

Littelfuse

Triacs ISO TO220 25A 35mA TRIAC

Datasheet

509In Stock

$8.75

$4.73

Min.: 1
Mult.: 1

Inrush Current Limiters S 153/10 M51

B57153S0100M051
TDK
1: $0.897
6,965In Stock

Mfr. Part #
B57153S0100M051

Mouser Part #
871-B57153S0100M051

TDK

Inrush Current Limiters S 153/10 M51

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Datasheet

6,965In Stock

Cut Tape

$0.897

$0.828

$0.688

$0.634

Reel

$0.404

View

Min.: 1
Mult.: 1

: 3,000

NTC Thermistors 100k 4600 3%

B57164K0104J000
TDK
1: $0.793
4,287In Stock

Mfr. Part #
B57164K0104J000

Mouser Part #
871-B57164K104J

TDK

NTC Thermistors 100k 4600 3%

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Datasheet

4,287In Stock

$0.793

$0.745

$0.697

$0.663

View

Min.: 1
Mult.: 1

Inrush Current Limiters S 236/16 M51

B57236S0160M051
TDK
1: $1.42
3,470In Stock

Mfr. Part #
B57236S0160M051

Mouser Part #
871-B57236S0160M051

TDK

Inrush Current Limiters S 236/16 M51

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Datasheet

3,470In Stock

Cut Tape

$1.42

$1.31

$1.08

$0.998

Reel

$0.701

View

Min.: 1
Mult.: 1

: 3,000

NTC Thermistors 0603 10K 3% B-4480 NTC

B57352V5103H060
TDK
1: $0.494
12,614In Stock

Mfr. Part #
B57352V5103H060

Mouser Part #
871-B57352V5103H60

TDK

NTC Thermistors 0603 10K 3% B-4480 NTC

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Datasheet

12,614In Stock

Cut Tape

$0.494

$0.437

$0.381

$0.337

View

Reel

$0.199

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

NTC Thermistors 5k 3988

B57869S0502F140
TDK
1: $3.45
1,789In Stock

Mfr. Part #
B57869S0502F140

Mouser Part #
871-B57869S502F140

TDK

NTC Thermistors 5k 3988

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Datasheet

1,789In Stock

$3.45

$3.30

$3.12

$2.99

View

Min.: 1
Mult.: 1

Varistors 50VAC 10% 7mm StandarD

B72207S0500K111
TDK
1: $0.442
11,786In Stock

Mfr. Part #
B72207S0500K111

Mouser Part #
871-B72207S0500K111

TDK

Varistors 50VAC 10% 7mm StandarD

Learn More

Datasheet

11,786In Stock

Cut Tape

$0.442

$0.269

$0.231

$0.213

View

Reel

$0.157

Min.: 1
Mult.: 1

: 6,000

Varistors 250VAC 10% 14mm StandarD

B72214S0251K101
TDK
1: $0.403
14,102In Stock

Mfr. Part #
B72214S0251K101

Mouser Part #
871-B72214S251K101

TDK

Varistors 250VAC 10% 14mm StandarD

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Datasheet

14,102In Stock

$0.403

$0.255

$0.207

$0.205

Min.: 1
Mult.: 1

Varistors 300VAC 10% 14mm AdvanceD Thermofused

B72214T2301K105
TDK
1: $3.65
2,121In Stock

Mfr. Part #
B72214T2301K105

Mouser Part #
871-B72214T2301K105

TDK

Varistors 300VAC 10% 14mm AdvanceD Thermofused

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Datasheet

2,121In Stock

$3.65

$2.30

$2.04

$1.74

View

Min.: 1
Mult.: 1

Varistors 25VAC 10% 20mm AEC-Q200

B72220S1250K102
TDK
1: $5.19
1,487In Stock

Mfr. Part #
B72220S1250K102

Mouser Part #
871-B72220S1250K102

TDK

Varistors 25VAC 10% 20mm AEC-Q200

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Datasheet

1,487In Stock

$5.19

$3.33

$2.99

$2.60

View

Min.: 1
Mult.: 1

Varistors 60VAC 10% 20mm StandarD

B72220S0600K101
TDK
1: $1.33
5,101In Stock

Mfr. Part #
B72220S0600K101

Mouser Part #
871-B72220S600K101

TDK

Varistors 60VAC 10% 20mm StandarD

Learn More

Datasheet

5,101In Stock

$1.33

$0.863

$0.759

$0.696

View

Min.: 1
Mult.: 1

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