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: 362.013
Select Image Part # Mfr. Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity. Qty. RoHS
TDK Varistors MLV. 0603,37V 2.800In Stock
Min.: 1
Mult.: 1
: 4.000

PolyPhaser Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 2.0GHz - 6.0GHz, DC Block 10W, 10kA, Blocking Capacitor 9In Stock
Min.: 1
Mult.: 1


PolyPhaser Surge Protection Accessories Hardware Kit, 108-1118B 28In Stock
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors TNC F/F Coaxial RF Surge Protector, DC - 50MHz, 1W, IP67, 15 V Max., 1mJ, 20kA, Hybrid, Bracket Down, Hole Mount 9In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 36 V Max., 1.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount 8In Stock
36On Order
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 36 V Max., 1mJ, 20kA, Hybrid, Bracket Down, Hole Mount 7In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors 7/16 M/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 500W, IP67, 48 V Max., 146uJ, 20kA, Hybrid, Bracket Down, Hole Mount 5In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N M/F Bulkhead Coaxial RF Surge Protector, 550MHz - 2700MHz, DC Pass, 6V, IP67, 20kA, Hybrid, Bracket Up, Hole Mount 5In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors TNC M/F Bulkhead Coaxial RF Surge Protector, 700MHz - 2.5GHz, DC Block, 500W, IP67, .5uJ, 18kA, Filter 2In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N/SMA F/F Bulkhead Coaxial RF Surge Protector, DC - 7GHz, 90W, IP67, 9 V Max., 5mJ, 20kA, Gas Discharge Tube 5In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors UHF F/F Bulkhead Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 3kW, 20mJ, 50kA, Blocking Cap, Hole Mount 11In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N M/F Bulkhead Coaxial RF Surge Protector, 10MHz - 1GHz, DC Block, 1.5kW, 3.5mJ, 20kA, Blocking Cap, Hole Mount 5In Stock
Min.: 1
Mult.: 1


E-T-A Circuit Breaker Accessories 508, DM, 20A, Distribution Module, Load, ATEX 7In Stock
Min.: 1
Mult.: 1



E-T-A Circuit Breakers 508,DM,24VDC,CL,20A,ATX 3In Stock
8Expected 8/5/2026
Min.: 1
Mult.: 1

TE Connectivity NTC (Negative Temperature Coefficient) Thermistors ESA PROBE-RTD PT1000 1000mm ENG MODEL 1In Stock
Min.: 1
Mult.: 1

Phoenix Contact Industrial Surge Protectors VAL-SPP-T2-275-1+0-UT 7In Stock
Min.: 1
Mult.: 1

Phoenix Contact Industrial Surge Protectors VAL-US-SPP-120/65/3+1-R 5In Stock
Min.: 1
Mult.: 1

Phoenix Contact Industrial Surge Protectors VAL-US-SPP-240/50/2+0-R 1In Stock
8Expected 8/20/2026
Min.: 1
Mult.: 1

Phoenix Contact Industrial Surge Protectors VAL-US-SPP-600D/40-P 7In Stock
Min.: 1
Mult.: 1

Phoenix Contact Industrial Surge Protectors VAL-US-SPP-HVNG-P 7In Stock
Min.: 1
Mult.: 1

PolyPhaser Surge Protection Accessories Flange to Bulkhead Type N Adapter Kit 22In Stock
63On Order
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 2kW, 10mJ, 50kA, Blocking Cap, Bracket Up, Hole Mount 7In Stock
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 10MHz - 1GHz, DC Block, 1.5kW, 3.5mJ, 20kA, Blocking Cap, Bracket Up, Hole Mount 9In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 2 Pair 100Base-T Ethernet, 1 Pair 48Vdc, UL 497B 5In Stock
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 1.8GHz - 6GHz, DC Block, 10W, IP67, .5uJ, 18kA, Filter 5In Stock
Min.: 1
Mult.: 1