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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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Results: 359’629

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Part #

Triacs 400V 4A Sensing 5-5-5-5mA

L4004L5TP
Littelfuse
1: CHF 2.42
1’796In Stock

Mfr. Part No.
L4004L5TP

Mouser Part No
576-L4004L5TP

Littelfuse

Triacs 400V 4A Sensing 5-5-5-5mA

Datasheet

1’796In Stock

CHF 2.42

CHF 1.23

CHF 1.10

CHF 1.09

Min.: 1
Mult.: 1

Triacs 800V 25A 80-80-80mA

Q8025L6TP
Littelfuse
1: CHF 5.21
914In Stock

Mfr. Part No.
Q8025L6TP

Mouser Part No
576-Q8025L6TP

Littelfuse

Triacs 800V 25A 80-80-80mA

Datasheet

914In Stock

CHF 5.21

CHF 3.13

CHF 2.89

Min.: 1
Mult.: 1

SCRs 400V 15A

S4015LTP
Littelfuse
1: CHF 2.59
1’827In Stock

Mfr. Part No.
S4015LTP

Mouser Part No
576-S4015LTP

Littelfuse

SCRs 400V 15A

Datasheet

1’827In Stock

CHF 2.59

CHF 1.58

CHF 1.35

CHF 1.16

CHF 1.13

Min.: 1
Mult.: 1

SCRs 55A 400V

S4055NRP
Littelfuse
1: CHF 5.66
1’879In Stock

Mfr. Part No.
S4055NRP

Mouser Part No
576-S4055NRP

Littelfuse

SCRs 55A 400V

Datasheet

1’879In Stock

Cut Tape

CHF 5.66

CHF 3.83

CHF 2.78

Reel

CHF 2.64

MouseReel Available

Min.: 1
Mult.: 1

: 500

SCRs 55A 800V

S8055RTP
Littelfuse
1: CHF 4.97
881In Stock

Mfr. Part No.
S8055RTP

Mouser Part No
576-S8055RTP

Littelfuse

SCRs 55A 800V

Datasheet

881In Stock

CHF 4.97

CHF 2.71

Min.: 1
Mult.: 1

SCRs 600V 40A 15mA TO220 High Temp 150c SCRs

SJ6040R2TP
Littelfuse
1: CHF 4.46
883In Stock

Mfr. Part No.
SJ6040R2TP

Mouser Part No
576-SJ6040R2TP

Littelfuse

SCRs 600V 40A 15mA TO220 High Temp 150c SCRs

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Datasheet

883In Stock

CHF 4.46

CHF 3.00

CHF 2.48

Min.: 1
Mult.: 1

Varistors 1206 35volts 45A 50.4V to 61.6V

MLV1206E33503T
Vishay / BC Components
1: CHF 0.499
6’763In Stock

Mfr. Part No.
MLV1206E33503T

Mouser Part No
594-MLV1206E33503T

Vishay / BC Components

Varistors 1206 35volts 45A 50.4V to 61.6V

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Datasheet

6’763In Stock

Cut Tape

CHF 0.499

CHF 0.315

CHF 0.274

CHF 0.256

Reel

CHF 0.199

View

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

NTC (Negative Temperature Coefficient) Thermistors 10K/2% 3984K/0.5% AEC-Q200 70mm

NTCALUG03A103GCA
Vishay / BC Components
1: CHF 1.59
1’519In Stock

Mfr. Part No.
NTCALUG03A103GCA

Mouser Part No
594-NTCALUG03A103GCA

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 10K/2% 3984K/0.5% AEC-Q200 70mm

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Datasheet

1’519In Stock

CHF 1.59

CHF 1.53

CHF 1.43

CHF 1.37

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 47k 1% SMD High B AUTO GRADE

NTCS0402E3473FXT
Vishay / BC Components
1: CHF 0.273
8’729In Stock

Mfr. Part No.
NTCS0402E3473FXT

Mouser Part No
594-NTCS0402E3473FXT

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 47k 1% SMD High B AUTO GRADE

Learn More

Datasheet

8’729In Stock

Cut Tape

CHF 0.273

CHF 0.257

CHF 0.233

CHF 0.205

Reel

CHF 0.171

View

MouseReel Available

Min.: 1
Mult.: 1

: 10’000

NTC (Negative Temperature Coefficient) Thermistors 100Kohms 2% SMD

NTCS0603E3104GXT
Vishay / BC Components
1: CHF 0.266
6’006In Stock

Mfr. Part No.
NTCS0603E3104GXT

Mouser Part No
594-NTCS0603E3104GXT

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 100Kohms 2% SMD

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Datasheet

6’006In Stock

Cut Tape

CHF 0.266

CHF 0.25

CHF 0.239

CHF 0.228

CHF 0.224

Reel

CHF 0.224

MouseReel Available

Min.: 1
Mult.: 1

: 4’000

NTC (Negative Temperature Coefficient) Thermistors 5Kohms 5% 3480K 1%

NTCS0805E3502JLT
Vishay / BC Components
1: CHF 0.418
13’984In Stock

Mfr. Part No.
NTCS0805E3502JLT

Mouser Part No
594-NTCS0805E3502JLT

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 5Kohms 5% 3480K 1%

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Datasheet

13’984In Stock

Cut Tape

CHF 0.418

CHF 0.325

CHF 0.279

CHF 0.229

Reel

CHF 0.175

View

MouseReel Available

Min.: 1
Mult.: 1

: 4’000

NTC (Negative Temperature Coefficient) Thermistors 68Kohms 3%

NTCS0805E3683HXT
Vishay / BC Components
1: CHF 0.362
7’931In Stock

Mfr. Part No.
NTCS0805E3683HXT

Mouser Part No
594-NTCS0805E3683HXT

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 68Kohms 3%

Learn More

Datasheet

7’931In Stock

Cut Tape

CHF 0.362

CHF 0.338

CHF 0.315

CHF 0.30

View

Reel

CHF 0.203

MouseReel Available

Min.: 1
Mult.: 1

: 4’000

ESD Protection Diodes / TVS Diodes 1500W 7.5V

SMCJ7.5A-13-F
Diodes Incorporated
1: CHF 1.12
15’461In Stock

Mfr. Part No.
SMCJ7.5A-13-F

Mouser Part No
621-SMCJ7.5A-13-F

Diodes Incorporated

ESD Protection Diodes / TVS Diodes 1500W 7.5V

Datasheet

15’461In Stock

Cut Tape

CHF 1.12

CHF 0.861

CHF 0.703

CHF 0.578

Reel

CHF 0.429

View

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

ESD Protection Diodes / TVS Diodes 5000W 160V Unidirect

5KP160A-E3/54
Vishay Semiconductors
1: CHF 2.90
1’246In Stock

Mfr. Part No.
5KP160A-E3/54

Mouser Part No
625-5KP160A-E3

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 5000W 160V Unidirect

Learn More

Datasheet

1’246In Stock

Cut Tape

CHF 2.90

CHF 1.72

CHF 1.54

CHF 1.22

Reel

CHF 1.21

CHF 1.17

Min.: 1
Mult.: 1

: 800

ESD Protection Diodes / TVS Diodes 500W 15V Unidirect

SA15A-E3/73
Vishay Semiconductors
1: CHF 1.06
5’633In Stock

Mfr. Part No.
SA15A-E3/73

Mouser Part No
625-SA15A-E3/73

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 500W 15V Unidirect

Learn More

Datasheet

5’633In Stock

CHF 1.06

CHF 0.512

CHF 0.444

CHF 0.345

Reel

CHF 0.278

View

Min.: 1
Mult.: 1

: 2’000

Industrial Surge Protectors VAL-SEC-T2-3C-350-FM

2905339
Phoenix Contact
1: CHF 358.93
4In Stock

Mfr. Part No.
2905339

Mouser Part No
651-2905339

Phoenix Contact

Industrial Surge Protectors VAL-SEC-T2-3C-350-FM

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Datasheet

4In Stock

CHF 358.93

Min.: 1
Mult.: 1

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Miniature 3-Pole Gas Discharge Tube

2036-09-B2FLF
Bourns
1: CHF 2.11
1’134In Stock

Mfr. Part No.
2036-09-B2FLF

Mouser Part No
652-2036-09-B2FLF

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Miniature 3-Pole Gas Discharge Tube

Datasheet

1’134In Stock

CHF 2.11

CHF 1.95

CHF 1.62

CHF 1.48

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 2.6A/16V

MF-LSMF260/16X-2
Bourns
1: CHF 0.62
7’826In Stock

Mfr. Part No.
MF-LSMF260/16X-2

Mouser Part No
652-MF-LSMF260/16X-2

Bourns

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 2.6A/16V

Learn More

Datasheet

7’826In Stock

Cut Tape

CHF 0.62

CHF 0.497

CHF 0.446

CHF 0.337

View

Reel

CHF 0.255

MouseReel Available

Min.: 1
Mult.: 1

: 4’000

Resettable Fuses - PPTC 42V 200MA-HD 40A MAX

MF-MSHT020KX-2
Bourns
1: CHF 0.604
8’996In Stock

Mfr. Part No.
MF-MSHT020KX-2

Mouser Part No
652-MF-MSHT020KX-2

Bourns

Resettable Fuses - PPTC 42V 200MA-HD 40A MAX

Learn More

Datasheet

8’996In Stock

Cut Tape

CHF 0.604

CHF 0.506

CHF 0.446

CHF 0.42

Reel

CHF 0.337

View

MouseReel Available

Min.: 1
Mult.: 1

: 2’000

Resettable Fuses - PPTC PTC RESETTABLE 2.5A 30V RADIAL LEADED

MF-R250-AP-10
Bourns
1: CHF 0.402
11’510In Stock

Mfr. Part No.
MF-R250-AP-10

Mouser Part No
652-MF-R250-AP-10

Bourns

Resettable Fuses - PPTC PTC RESETTABLE 2.5A 30V RADIAL LEADED

Learn More

Datasheet

11’510In Stock

CHF 0.402

CHF 0.371

CHF 0.308

CHF 0.281

Reel

CHF 0.18

View

Min.: 1
Mult.: 1

: 3’000

Resettable Fuses - PPTC 240V .55A-HD 7A MAX

MF-RM055/240-0
Bourns
1: CHF 0.877
3’169In Stock

Mfr. Part No.
MF-RM055/240-0

Mouser Part No
652-MF-RM055/240-0

Bourns

Resettable Fuses - PPTC 240V .55A-HD 7A MAX

Learn More

Datasheet

3’169In Stock

CHF 0.877

CHF 0.813

CHF 0.645

CHF 0.618

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC PTC RESETTABLE 1.35A 72V RADIAL LEADED

MF-RX135/72-2-14
Bourns
1: CHF 0.572
9’341In Stock

Mfr. Part No.
MF-RX135/72-2-14

Mouser Part No
652-MF-RX135/72-2-14

Bourns

Resettable Fuses - PPTC PTC RESETTABLE 1.35A 72V RADIAL LEADED

Datasheet

9’341In Stock

Cut Tape

CHF 0.572

CHF 0.526

CHF 0.436

CHF 0.402

Reel

CHF 0.262

View

Min.: 1
Mult.: 1

: 3’000

Resettable Fuses - PPTC 1210 SMD High-Temp Polymer PTC, 16V/0.75

MF-USHT075KX-2
Bourns
1: CHF 0.555
10’111In Stock

Mfr. Part No.
MF-USHT075KX-2

Mouser Part No
652-MF-USHT075KX-2

Bourns

Resettable Fuses - PPTC 1210 SMD High-Temp Polymer PTC, 16V/0.75

Learn More

Datasheet

10’111In Stock

Cut Tape

CHF 0.555

CHF 0.423

CHF 0.397

CHF 0.30

Reel

CHF 0.217

View

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

Thermal Cut-offs Trip Temp 72c 5c TOL

NR72AB0
Bourns
1: CHF 1.34
3’041In Stock

Mfr. Part No.
NR72AB0

Mouser Part No
652-NR72AB0

Bourns

Thermal Cut-offs Trip Temp 72c 5c TOL

Learn More

Datasheet

3’041In Stock

CHF 1.34

CHF 1.22

CHF 1.06

CHF 0.926

View

Min.: 1
Mult.: 1

Thermal Cut-offs HC TCO 85C BL-51

SA85SB0
Bourns
1: CHF 0.87
8’998In Stock

Mfr. Part No.
SA85SB0

Mouser Part No
652-SA85SB0

Bourns

Thermal Cut-offs HC TCO 85C BL-51

Learn More

Datasheet

8’998In Stock

Cut Tape

CHF 0.87

CHF 0.802

CHF 0.799

CHF 0.665

View

Reel

CHF 0.374

MouseReel Available

Min.: 1
Mult.: 1

: 5’000

Circuit Protection

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