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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 #

NTC (Negative Temperature Coefficient) Thermistors 4.7Kohms 3%

NTCLE400E3472H
Vishay / BC Components
1: Rp41.095
2.443In Stock

Mfr. Part No.
NTCLE400E3472H

Mouser Part No
594-NTCLE400E3472H

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 4.7Kohms 3%

Datasheet

2.443In Stock

Rp41.095

Rp39.260

Rp36.509

Rp34.674

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Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 47Kohms 5% SMD

NTCS0603E3473JHT
Vishay / BC Components
1: Rp5.137
9.951In Stock

Mfr. Part No.
NTCS0603E3473JHT

Mouser Part No
594-NTCS0603E3473JHT

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 47Kohms 5% SMD

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Datasheet

9.951In Stock

Cut Tape

Rp5.137

Rp4.825

Rp2.660

Rp2.568

Reel

Rp2.550

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

NTC (Negative Temperature Coefficient) Thermistors Glass Protected NTC Thermistor 0805, 2.2kOhms, 5%, 210mW

NTCS0805E3222JMT
Vishay / BC Components
1: Rp6.788
10.307In Stock

Mfr. Part No.
NTCS0805E3222JMT

Mouser Part No
594-NTCS0805E3222JMT

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors Glass Protected NTC Thermistor 0805, 2.2kOhms, 5%, 210mW

Datasheet

10.307In Stock

Cut Tape

Rp6.788

Rp6.421

Rp5.687

Rp5.247

Reel

Rp3.302

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MouseReel Available

Min.: 1
Mult.: 1

: 4.000

NTC (Negative Temperature Coefficient) Thermistors 10K 1% 3435K 80MM AWG24

NTCALUG01A103F800L
Vishay / BC Components
1: Rp102.554
529In Stock

Mfr. Part No.
NTCALUG01A103F800L

Mouser Part No
594-NTLUG01A103F800L

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 10K 1% 3435K 80MM AWG24

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Datasheet

529In Stock

Rp102.554

Rp92.097

Rp88.428

Rp83.658

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Min.: 1
Mult.: 1

PTC (Positive Temperature Coefficient) Thermistors 1% 100-kohm linear t hermistor in 0402 A A 595-TMP6331DECT

TMP6331DECR
Texas Instruments
1: Rp2.935
37.319In Stock

Mfr. Part No.
TMP6331DECR

Mouser Part No
595-TMP6331DECR

Texas Instruments

PTC (Positive Temperature Coefficient) Thermistors 1% 100-kohm linear t hermistor in 0402 A A 595-TMP6331DECT

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Datasheet

37.319In Stock

Cut Tape

Rp2.935

Rp2.679

Rp2.348

Rp2.238

Reel

Rp1.486

View

MouseReel Available

Min.: 1
Mult.: 1

: 10.000

ESD Protection Diodes / TVS Diodes 1500W 130V Bidirect

1.5KE130CA-E3/54
Vishay Semiconductors
1: Rp24.767
4.224In Stock

Mfr. Part No.
1.5KE130CA-E3/54

Mouser Part No
625-1.5KE130CA-E3

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 1500W 130V Bidirect

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Datasheet

4.224In Stock

Cut Tape

Rp24.767

Rp13.594

Rp11.411

Rp8.935

Reel

Rp6.329

View

Min.: 1
Mult.: 1

: 1.400

ESD Protection Diodes / TVS Diodes 5000W 45V Unidirect

5KP45A-E3/54
Vishay Semiconductors
1: Rp72.467
1.157In Stock

Mfr. Part No.
5KP45A-E3/54

Mouser Part No
625-5KP45A-E3

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 5000W 45V Unidirect

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Datasheet

1.157In Stock

Cut Tape

Rp72.467

Rp39.260

Rp35.224

Rp27.702

Reel

Rp24.767

Min.: 1
Mult.: 1

: 800

ESD Protection Diodes / TVS Diodes 600W 30V 5% Uni

SMBG30A-E3/52
Vishay Semiconductors
1: Rp17.612
4.050In Stock

Mfr. Part No.
SMBG30A-E3/52

Mouser Part No
625-SMBG30A-E3

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 600W 30V 5% Uni

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Datasheet

4.050In Stock

Cut Tape

Rp17.612

Rp8.054

Rp7.650

Reel

Rp7.632

Rp7.357

MouseReel Available

Min.: 1
Mult.: 1

: 750

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 90V 3POLE RADIAL LEADS GDT

GTCR36-900M-R10
Littelfuse
1: Rp49.534
1.304In Stock

Mfr. Part No.
GTCR36-900M-R10

Mouser Part No
650-GTCR36-900M-R10

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 90V 3POLE RADIAL LEADS GDT

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Datasheet

1.304In Stock

Rp49.534

Rp37.976

Rp29.904

Rp28.253

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Min.: 1
Mult.: 1

Industrial Surge Protectors TTC-6P-3-24DC-PT-I

1061383
Phoenix Contact
1: Rp3.779.459
7In Stock

Mfr. Part No.
1061383

Mouser Part No
651-1061383

Phoenix Contact

Industrial Surge Protectors TTC-6P-3-24DC-PT-I

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Datasheet

7In Stock

Rp3.779.459

Min.: 1
Mult.: 1

Circuit Breakers CAPAROC E2 12-24DC/2-10A

1110984
Phoenix Contact
1: Rp1.571.702
160In Stock

Mfr. Part No.
1110984

Mouser Part No
651-1110984

Phoenix Contact

Circuit Breakers CAPAROC E2 12-24DC/2-10A

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Datasheet

160In Stock

Rp1.571.702

Min.: 1
Mult.: 1

Surge Protection Accessories PT 2XEX(i)-BE

2839279
Phoenix Contact
1: Rp2.892.614
21In Stock

Mfr. Part No.
2839279

Mouser Part No
651-2839279

Phoenix Contact

Surge Protection Accessories PT 2XEX(i)-BE

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Datasheet

21In Stock

Rp2.892.614

Min.: 1
Mult.: 1

Industrial Surge Protectors PT 3-HF-12DC-ST

2858043
Phoenix Contact
1: Rp3.412.356
25In Stock

Mfr. Part No.
2858043

Mouser Part No
651-2858043

Phoenix Contact

Industrial Surge Protectors PT 3-HF-12DC-ST

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Datasheet

25In Stock

Rp3.412.356

Min.: 1
Mult.: 1

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 60volts

2031-15T-SM-RPLF
Bourns
1.500: Rp12.750
10.500In Stock

Mfr. Part No.
2031-15T-SM-RPLF

Mouser Part No
652-2031-15T-SM-RPLF

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 60volts

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Datasheet

10.500In Stock

Reel

Rp12.750

Rp11.741

Rp11.173

Min.: 1.500
Mult.: 1.500

: 1.500

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GAS DISCHARGE TUBE HIGH VOLTAGE

2039-110-SM-RPLF
Bourns
1: Rp22.566
5.236In Stock

Mfr. Part No.
2039-110-SM-RPLF

Mouser Part No
652-2039-110-SM-RPLF

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GAS DISCHARGE TUBE HIGH VOLTAGE

Datasheet

5.236In Stock

Cut Tape

Rp22.566

Rp20.731

Rp17.190

Rp15.869

Reel

Rp11.209

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.500

Thermal Cut-offs TRIP TEMP 90C 5C TOL

HC90AY-1
Bourns
1: Rp25.684
3.108In Stock

Mfr. Part No.
HC90AY-1

Mouser Part No
652-HC90AY-1

Bourns

Thermal Cut-offs TRIP TEMP 90C 5C TOL

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Datasheet

3.108In Stock

Rp25.684

Rp24.217

Rp21.098

Rp19.447

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Min.: 1
Mult.: 1

Thermal Cut-offs TRIP TEMP 77C 5C TOL

LC77AY-1
Bourns
1: Rp23.483
7.547In Stock

Mfr. Part No.
LC77AY-1

Mouser Part No
652-LC77AY-1

Bourns

Thermal Cut-offs TRIP TEMP 77C 5C TOL

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Datasheet

7.547In Stock

Rp23.483

Rp21.648

Rp17.906

Rp15.631

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 3.3A/6V

MF-LSMF330X-2
Bourns
1: Rp13.760
8.916In Stock

Mfr. Part No.
MF-LSMF330X-2

Mouser Part No
652-MF-LSMF330X-2

Bourns

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 3.3A/6V

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Datasheet

8.916In Stock

Cut Tape

Rp13.760

Rp10.549

Rp9.888

Rp7.467

View

Reel

Rp5.522

MouseReel Available

Min.: 1
Mult.: 1

: 6.000

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

MF-R250U
Bourns
1: Rp9.173
7.525In Stock

Mfr. Part No.
MF-R250U

Mouser Part No
652-MF-R250U

Bourns

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

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Datasheet

7.525In Stock

Rp9.173

Rp8.237

Rp5.467

Rp4.898

View

Min.: 1
Mult.: 1

Varistors PV 140V 10%

PV140K4032R2
Bourns
1: Rp15.227
4.771In Stock

Mfr. Part No.
PV140K4032R2

Mouser Part No
652-PV140K4032R2

Bourns

Varistors PV 140V 10%

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Datasheet

4.771In Stock

Cut Tape

Rp15.227

Rp9.723

Rp8.531

Rp7.962

Reel

Rp7.320

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

Varistors PV 275V 10%

PV275K4032R2
Bourns
1: Rp15.227
6.868In Stock

Mfr. Part No.
PV275K4032R2

Mouser Part No
652-PV275K4032R2

Bourns

Varistors PV 275V 10%

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Datasheet

6.868In Stock

Cut Tape

Rp15.227

Rp9.723

Rp8.531

Rp7.944

Reel

Rp7.320

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

Thermal Cut-offs HC TCO 77C BL-51

SA77SB0
Bourns
1: Rp19.814
23.118In Stock

Mfr. Part No.
SA77SB0

Mouser Part No
652-SA77SB0

Bourns

Thermal Cut-offs HC TCO 77C BL-51

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Datasheet

23.118In Stock

Cut Tape

Rp19.814

Rp18.273

Rp15.172

Rp13.319

View

Reel

Rp8.531

MouseReel Available

Min.: 1
Mult.: 1

: 5.000

Thermal Cut-offs 72C Reinforced Cover SMD HC TCO

SC72AAA
Bourns
1: Rp21.465
4.479In Stock

Mfr. Part No.
SC72AAA

Mouser Part No
652-SC72AAA

Bourns

Thermal Cut-offs 72C Reinforced Cover SMD HC TCO

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Datasheet

4.479In Stock

Cut Tape

Rp21.465

Rp19.263

Rp16.621

Rp15.025

View

Reel

Rp10.971

MouseReel Available

Min.: 1
Mult.: 1

: 5.000

Surface Mount Fuses 4A Fast Acting 0603 SinglFuse

SF-0603F400-2
Bourns
1: Rp10.641
21.803In Stock

Mfr. Part No.
SF-0603F400-2

Mouser Part No
652-SF-0603F400-2

Bourns

Surface Mount Fuses 4A Fast Acting 0603 SinglFuse

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Datasheet

21.803In Stock

Cut Tape

Rp10.641

Rp9.063

Rp7.870

Rp7.118

View

Reel

Rp4.495

MouseReel Available

Min.: 1
Mult.: 1

: 5.000

Surface Mount Fuses 1A 32V TIME DELAY

SF-0603SP100-2
Bourns
1: Rp13.943
15.766In Stock

Mfr. Part No.
SF-0603SP100-2

Mouser Part No
652-SF-0603SP100-2

Bourns

Surface Mount Fuses 1A 32V TIME DELAY

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Datasheet

15.766In Stock

Cut Tape

Rp13.943

Rp11.081

Rp9.338

Rp8.201

View

Reel

Rp5.174

MouseReel Available

Min.: 1
Mult.: 1

: 5.000

Circuit Protection

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