Circuit Protection

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.
Results: 361,799
Select Image Part # Mfr. Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity. Qty. RoHS
TDK NTC (Negative Temperature Coefficient) Thermistors 0603 10K 3% B-4480 NTC 13,389In Stock
Min.: 1
Mult.: 1
: 4,000

TDK NTC (Negative Temperature Coefficient) Thermistors 4.7k 3988 1% 60mW 382In Stock
Min.: 1
Mult.: 1

TDK Varistors 275VAC 10% 14mm EnergetiQ 3,457In Stock
Min.: 1
Mult.: 1

TDK Varistors 300VAC 10% 20mm 2-pin ThermoFuse 1,607In Stock
Min.: 1
Mult.: 1

TDK Gas Discharge Tubes - GDTs / Gas Plasma Arrestors A71-H25X 1,891In Stock
Min.: 1
Mult.: 1
: 500

TDK Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 200V 30% 2.5a S30-A200X 3,380In Stock
Min.: 1
Mult.: 1
: 2,500

TDK Gas Discharge Tubes - GDTs / Gas Plasma Arrestors T90-A420XSMD 716In Stock
Min.: 1
Mult.: 1
: 900

TDK Gas Discharge Tubes - GDTs / Gas Plasma Arrestors A71-H10XG 1,273In Stock
Min.: 1
Mult.: 1
: 500

TDK Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 2 ELECT / 350v 2,203In Stock
Min.: 1
Mult.: 1
: 100

TDK Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 90VDC 0.5pF 0.2 2,326In Stock
Min.: 1
Mult.: 1
: 900



Schneider Electric Circuit Breakers TeSys MOTOR CB MAGNETIC 40A EVLK 4In Stock
3On Order
Min.: 1
Mult.: 1

Schneider Electric Circuit Breakers MAN-START 600VAC 40AMP IEC 7In Stock
Min.: 1
Mult.: 1


Kinetic Technologies ESD Protection Diodes / TVS Diodes Dual-channel Active choke for EMI suppression w/ Integrated ESD Protection 2,093In Stock
Min.: 1
Mult.: 1
: 1,000

E-T-A Circuit Breakers Single pole compact high performance thermal circuit breaker with tease-free, trip-free, snap action mechanism and push/pull on/off manual actuation (M-type TO CBE to EN 60934). An indicator band on the push button clearly shows the tripped/off posit 53In Stock
Min.: 1
Mult.: 1

Littelfuse Automotive Fuses Fuse - BF2 58V / 1000A DC, 225A 200 pc 276In Stock
Min.: 1
Mult.: 1

KYOCERA AVX Surface Mount Fuses .028A 7.5mOhm Green LGA Miniature 0402 37,213In Stock
Min.: 1
Mult.: 1
: 5,000

Infineon Technologies SCRs PCT 1800V 880A 12In Stock
4On Order
Min.: 1
Mult.: 1


Bourns ESD Protection Diodes / TVS Diodes DIO TVS VWM 64V 5kW BIDIR SMC AECQ 2,323In Stock
Min.: 1
Mult.: 1
: 3,000

IXYS SCRs 16In Stock
24On Order
Min.: 1
Mult.: 1
WeEn Semiconductors Triacs RAIL-THYR AND TRIACS 3,412In Stock
Min.: 1
Mult.: 1

Vishay Semiconductors ESD Protection Diodes / TVS Diodes Unidirectional TVS 400Watt SMF 25,219In Stock
Min.: 1
Mult.: 1
: 3,000
Panjit ESD Protection Diodes / TVS Diodes 12V,ESD Protection,SOT-23,UNI 114,000In Stock
Min.: 1
Mult.: 1
: 3,000

E-T-A Circuit Breakers Single, two and three pole magnetic circuit breakers with trip-free mechanism and push/pull on/off manual actuation. A choice of fast magnetic only or hydraulically delayed switching characteristics (Stype MO or HM CBE to EN 60934) en 14In Stock
Min.: 1
Mult.: 1

E-T-A Circuit Breakers Single pole thermal-magnetic circuit breaker with tease-free, trip-free, snap action mechanism and two button operation (M-type TM CBE to EN 60934). Designed for plug-in mounting with E-T-A sockets 17-P10-Si, 23-P10-Si, 63-P10-Si; or 43In Stock
Min.: 1
Mult.: 1


E-T-A Circuit Breakers 1077, 2P, DM, 480VAC/60VDC, C, 10A 436In Stock
50On Order
Min.: 1
Mult.: 1