.hide-partial { max-height: none; } .show-more { display: none; }

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.
More...

Please view our selection of circuit protection devices below.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Types of Circuit Protection

List Images

Results: 359.447

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

Filter by

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

NTC (Negative Temperature Coefficient) Thermistors 10 dia Power NTC 16ohm Y kink bulk

BN-LG10Y160MYB
Bourns
1: Rp10.457
9.998In Stock

Mfr. Part No.
BN-LG10Y160MYB

Mouser Part No
652-BN-LG10Y160MYB

Bourns

NTC (Negative Temperature Coefficient) Thermistors 10 dia Power NTC 16ohm Y kink bulk

Learn More

Datasheet

9.998In Stock

Rp10.457

Rp8.439

Rp7.265

Rp5.981

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 15 dia Power NTC 220ohm Y kink bulk

BN-LG15Y221MYB
Bourns
1: Rp17.429
5.738In Stock
6.250Expected 02/09/2026

Mfr. Part No.
BN-LG15Y221MYB

Mouser Part No
652-BN-LG15Y221MYB

Bourns

NTC (Negative Temperature Coefficient) Thermistors 15 dia Power NTC 220ohm Y kink bulk

Learn More

Datasheet

5.738In Stock

6.250Expected 02/09/2026

Rp17.429

Rp13.246

Rp11.411

Rp11.008

View

Min.: 1
Mult.: 1

Automotive Fuses POWrFuse TH 275Vac 500Vdc 30A

PF-KT1-30
Bourns
1: Rp630.552
279In Stock

Mfr. Part No.
PF-KT1-30

Mouser Part No
652-PF-KT1-30

Bourns

Automotive Fuses POWrFuse TH 275Vac 500Vdc 30A

Learn More

Datasheet

279In Stock

Rp630.552

Rp523.044

Rp348.207

Rp310.965

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes RSDT 22V

RSDT27RSMTFTL1
ROHM Semiconductor
1: Rp43.480
7.800In Stock

Mfr. Part No.
RSDT27RSMTFTL1

Mouser Part No
755-RSDT27RSMTFTL1

ROHM Semiconductor

ESD Protection Diodes / TVS Diodes RSDT 22V

Learn More

Datasheet

7.800In Stock

Cut Tape

Rp43.480

Rp29.170

Rp19.814

Rp16.750

Reel

Rp13.815

View

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

ESD Protection Diodes / TVS Diodes 600W,30V 5%, DFN3820A TVS

6DFN30A-M3/I
Vishay Semiconductors
1: Rp13.576
27.517In Stock

Mfr. Part No.
6DFN30A-M3/I

Mouser Part No
78-6DFN30A-M3/I

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 600W,30V 5%, DFN3820A TVS

Learn More

Datasheet

27.517In Stock

Cut Tape

Rp13.576

Rp8.366

Rp5.375

Rp4.091

Reel

Rp2.715

View

Min.: 1
Mult.: 1

: 14.000

ESD Protection Diodes / TVS Diodes 28V 1000W UniDir TransZorb 5% Tol

SMBJ28A
Vishay Semiconductors
1: Rp8.990
54.709In Stock

Mfr. Part No.
SMBJ28A

Mouser Part No
78-SMBJ28A

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 28V 1000W UniDir TransZorb 5% Tol

Learn More

Datasheet

54.709In Stock

Cut Tape

Rp8.990

Rp6.164

Rp3.486

Rp2.752

Reel

Rp2.312

View

MouseReel Available

Min.: 1
Mult.: 1

: 750

ESD Protection Diodes / TVS Diodes T4F - A 11V

T4F11AHM3/H
Vishay Semiconductors
1: Rp8.439
35.659In Stock

Mfr. Part No.
T4F11AHM3/H

Mouser Part No
78-T4F11AHM3/H

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes T4F - A 11V

Learn More

Datasheet

35.659In Stock

Cut Tape

Rp8.439

Rp3.981

Rp3.247

Rp2.513

Reel

Rp1.816

View

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

ESD Protection Diodes / TVS Diodes T4F - A 18V

T4F18AHM3/I
Vishay Semiconductors
1: Rp8.439
38.940In Stock

Mfr. Part No.
T4F18AHM3/I

Mouser Part No
78-T4F18AHM3/I

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes T4F - A 18V

Learn More

Datasheet

38.940In Stock

Cut Tape

Rp8.439

Rp3.981

Rp3.247

Rp2.513

Reel

Rp1.468

View

MouseReel Available

Min.: 1
Mult.: 1

: 10.000

ESD Protection Diodes / TVS Diodes Low Capacitance RailClamp 4-Line Surge & ESD Protection

RCLAMP03354P.A
Semtech
1: Rp21.832
9.855In Stock

Mfr. Part No.
RCLAMP03354P.A

Mouser Part No
947-RCLAMP03354P.A

Semtech

ESD Protection Diodes / TVS Diodes Low Capacitance RailClamp 4-Line Surge & ESD Protection

Learn More

Datasheet

9.855In Stock

Cut Tape

Rp21.832

Rp12.475

Rp10.677

Rp8.439

Reel

Rp6.054

View

MouseReel Available

Min.: 1
Mult.: 1

: 5.000

ESD Protection Diodes / TVS Diodes 1-Line 5V 5pF 0.15 Ohms ESD

UCLAMP5011Z2CTKT
Semtech
1: Rp5.320
225.415In Stock

Mfr. Part No.
UCLAMP5011Z2CTKT

Mouser Part No
947-UCLAMP5011Z2CTKT

Semtech

ESD Protection Diodes / TVS Diodes 1-Line 5V 5pF 0.15 Ohms ESD

Datasheet

225.415In Stock

Cut Tape

Rp5.320

Rp2.312

Rp2.018

Rp1.486

View

Reel

Rp715

MouseReel Available

Min.: 1
Mult.: 1

: 20.000

Circuit Breaker Accessories VARI-DEPTH H&LE MECH 4 SERIES C CB F FRM

373D958G22
Eaton Electrical
1: Rp4.301.403
1In Stock
New Product

Mfr. Part No.
373D958G22

Mouser Part No
504-373D958G22

New Product

Eaton Electrical

Circuit Breaker Accessories VARI-DEPTH H&LE MECH 4 SERIES C CB F FRM

Datasheet

1In Stock

Rp4.301.403

Rp3.416.025

Rp3.212.568

Rp2.917.014

View

Min.: 1
Mult.: 1

Circuit Breaker Accessories LG Handle Mech Close Couple Black

LHMCCB
Eaton Electrical
1: Rp6.452.288
1In Stock
New Product

Mfr. Part No.
LHMCCB

Mouser Part No
504-LHMCCB

New Product

Eaton Electrical

Circuit Breaker Accessories LG Handle Mech Close Couple Black

Datasheet

1In Stock

Rp6.452.288

Rp4.951.585

Rp4.660.434

Rp4.186.007

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 6V .35A .1s

1206L035YR
Littelfuse
1: Rp8.990
66.586In Stock

Mfr. Part No.
1206L035YR

Mouser Part No
576-1206L035YR

Littelfuse

Resettable Fuses - PPTC 6V .35A .1s

Learn More

Datasheet

66.586In Stock

Cut Tape

Rp8.990

Rp8.311

Rp7.008

Rp6.403

View

Reel

Rp3.798

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

Fuse Holder 5X2 OMM SMD FUSE BLOCK

65800001009
Littelfuse
1: Rp59.258
16.156In Stock

Mfr. Part No.
65800001009

Mouser Part No
576-65800001009

Littelfuse

Fuse Holder 5X2 OMM SMD FUSE BLOCK

Learn More

Datasheet

16.156In Stock

Rp59.258

Rp53.020

Rp44.581

Rp40.545

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes ESD 3.3V UNI

SP3205-01ETG
Littelfuse
1: Rp9.723
411.679In Stock

Mfr. Part No.
SP3205-01ETG

Mouser Part No
576-SP3205-01ETG

Littelfuse

ESD Protection Diodes / TVS Diodes ESD 3.3V UNI

Learn More

Datasheet

411.679In Stock

Cut Tape

Rp9.723

Rp4.715

Rp3.853

Rp3.082

Reel

Rp1.669

View

MouseReel Available

Min.: 1
Mult.: 1

: 10.000

ESD Protection Diodes / TVS Diodes 1KA high current bidirectional TVS diodes

PTVS1-026C-H
Bourns
1: Rp94.665
10.036In Stock

Mfr. Part No.
PTVS1-026C-H

Mouser Part No
652-PTVS1-026C-H

Bourns

ESD Protection Diodes / TVS Diodes 1KA high current bidirectional TVS diodes

Learn More

Datasheet

10.036In Stock

Cut Tape

Rp94.665

Rp54.855

Rp50.635

Rp46.415

Reel

Rp37.793

View

MouseReel Available

Min.: 1
Mult.: 1

: 2.500

Surface Mount Fuses 10A 250V FAST ACTING

SF-3812F1000T-2
Bourns
1: Rp64.394
9.942In Stock

Mfr. Part No.
SF-3812F1000T-2

Mouser Part No
652-SF-3812F1000T-2

Bourns

Surface Mount Fuses 10A 250V FAST ACTING

Learn More

Datasheet

9.942In Stock

Cut Tape

Rp64.394

Rp54.121

Rp42.563

Rp37.793

Reel

Rp26.602

View

MouseReel Available

Min.: 1
Mult.: 1

: 2.500

Circuit Breakers 10A 2-P Illum Amber P1 & P2 Trip QC

W33-T4B1Q-10
TE Connectivity / P&B
1: Rp1.784.515
211In Stock

Mfr. Part No.
W33-T4B1Q-10

Mouser Part No
655-W33-T4B1Q-10

TE Connectivity / P&B

Circuit Breakers 10A 2-P Illum Amber P1 & P2 Trip QC

Datasheet

211In Stock

Rp1.784.515

Rp1.617.567

Rp1.562.896

Quote

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 600W 16V 5% SMB (DO-214AA)

SMBJ16AHE3_A/I
Vishay Semiconductors
1: Rp14.677
382.231In Stock

Mfr. Part No.
SMBJ16AHE3_A/I

Mouser Part No
78-SMBJ16AHE3_A/I

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 600W 16V 5% SMB (DO-214AA)

Learn More

Datasheet

382.231In Stock

Cut Tape

Rp14.677

Rp9.063

Rp5.852

Rp4.458

Reel

Rp3.449

View

MouseReel Available

Min.: 1
Mult.: 1

: 3.200

SCRs New Input Thyristor - TO-220-e3

VS-25TTS12-M3
Vishay Semiconductors
1: Rp105.673
7.126In Stock

Mfr. Part No.
VS-25TTS12-M3

Mouser Part No
78-VS-25TTS12-M3

Vishay Semiconductors

SCRs New Input Thyristor - TO-220-e3

Datasheet

7.126In Stock

Rp105.673

Rp53.203

Rp44.948

Rp43.847

Quote

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 10K OHM 1% PROBE ASSEMBLY

USP10975
Littelfuse
1: Rp164.747
3.214In Stock

Mfr. Part No.
USP10975

Mouser Part No
803-USP10975

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors 10K OHM 1% PROBE ASSEMBLY

Learn More

Datasheet

3.214In Stock

Rp164.747

Rp155.941

Rp153.556

Rp151.721

View

Min.: 1
Mult.: 1

PTC (Positive Temperature Coefficient) Thermistors T=5K 100deg C

B59100M1100A070
TDK
1: Rp75.952
6.165In Stock

Mfr. Part No.
B59100M1100A070

Mouser Part No
871-B59100M1100A70

TDK

PTC (Positive Temperature Coefficient) Thermistors T=5K 100deg C

Learn More

Datasheet

6.165In Stock

Rp75.952

Rp68.064

Rp65.128

Rp61.459

Reel

Rp51.185

View

Min.: 1
Mult.: 1

: 400

PTC (Positive Temperature Coefficient) Thermistors 850A 130A 70 10X2.5 PTC Thermistor

B59850C0130A070
TDK
1: Rp31.005
22.098In Stock

Mfr. Part No.
B59850C0130A070

Mouser Part No
871-B59850C0130A070

TDK

PTC (Positive Temperature Coefficient) Thermistors 850A 130A 70 10X2.5 PTC Thermistor

Learn More

Datasheet

22.098In Stock

Rp31.005

Rp28.620

Rp26.785

Rp23.850

Reel

Rp16.200

View

Min.: 1
Mult.: 1

: 1.300

Surface Mount Fuses FUSE 32V HIGH I2T 0603 TL 3A

0408003.WR
Littelfuse
1: Rp28.987
4.418In Stock

Mfr. Part No.
0408003.WR

Mouser Part No
576-0408003.WR

Littelfuse

Surface Mount Fuses FUSE 32V HIGH I2T 0603 TL 3A

Learn More

Datasheet

4.418In Stock

Cut Tape

Rp28.987

Rp25.868

Rp24.217

Rp19.997

View

Reel

Rp11.448

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

ESD Protection Diodes / TVS Diodes TVS 5KW AECQ-101 TR13 RoHS

TP5.0SMDJ110A
Littelfuse
1: Rp99.068
5.821In Stock

Mfr. Part No.
TP5.0SMDJ110A

Mouser Part No
576-TP5.0SMDJ110A

Littelfuse

ESD Protection Diodes / TVS Diodes TVS 5KW AECQ-101 TR13 RoHS

Learn More

Datasheet

5.821In Stock

Cut Tape

Rp99.068

Rp65.862

Rp49.718

Rp44.214

Reel

Rp36.875

View

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

Circuit Protection

Types of Circuit Protection

Customer Service Office

Company

Resources

Support