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: 361,781
Select Image Part # Mfr. Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Littelfuse Triacs ISO TO220 25A 35mA TRIAC 510In Stock
Min.: 1
Mult.: 1

TDK Inrush Current Limiters S 153/10 M51 7,333In Stock
6,000On Order
Min.: 1
Mult.: 1
: 1,500

TDK NTC (Negative Temperature Coefficient) Thermistors 100k 4600 3% 4,404In Stock
Min.: 1
Mult.: 1

TDK Inrush Current Limiters ICL S235/2.5 M 5,531In Stock
6,000On Order
Min.: 1
Mult.: 1

TDK Inrush Current Limiters S 235/8 M 4,579In Stock
Min.: 1
Mult.: 1

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


E-T-A Circuit Breakers Compact single pole thermal circuit breaker with push-to-reset, tease free, trip free, snap action mechanism and separate (colour coded) manual release. Combining full feature circuit breaker protection and convenience with low cost o 363In Stock
Min.: 1
Mult.: 1


E-T-A Circuit Breakers Compact single pole thermal circuit breaker with push-to-reset, tease free, trip free, snap action mechanism and separate (colour coded) manual release. Combining full feature circuit breaker protection and convenience with low cost o 190In Stock
Min.: 1
Mult.: 1

E-T-A Circuit Breakers Single pole 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 position. Thr 51In Stock
Min.: 1
Mult.: 1


E-T-A Circuit Breakers 1077, 3P, DM, 480VAC/60VDC, D, 50A 255In Stock
Min.: 1
Mult.: 1

E-T-A Circuit Breakers Combination of single pole circuit breaker and ON/OFF switch with soft-touch rocker actuation. Contoured rockers are available with a choice of colours and legends, with optional illumination. The 3131 is sealed to provide IP66 rated 363In Stock
130On Order
Min.: 1
Mult.: 1

Amphenol Advanced Sensors NTC (Negative Temperature Coefficient) Thermistors Glass Encapsulated 100K Ohm +/- 5% 25C 2,084In Stock
Min.: 1
Mult.: 1

Amphenol Advanced Sensors NTC (Negative Temperature Coefficient) Thermistors Chip with solder-coated wires, 2KOhm +/-2% @ 25 C 13,529In Stock
Min.: 1
Mult.: 1
Bel Fuse Surface Mount Fuses 630mA 350 VAC 72 VCD 12,322In Stock
Min.: 1
Mult.: 1
: 5,000