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: 359,644
Select Image Part # Mfr. Description Datasheet Availability Pricing (TWD) Filter the results in the table by unit price based on your quantity. Qty. RoHS
PolyPhaser Connectorized Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 6GHz - 10GHz, DC Block, 750W, IP67, .5uJ, 10kA, Filter 11In Stock
Min.: 1
Mult.: 1
Littelfuse ESD Protection Diodes / TVS Diodes 5KW AECQ-101 TR13 RoHS 1,814In Stock
Min.: 1
Mult.: 1
: 3,000

Bourns Industrial & Electrical Fuses POWrFuse BD 1000Vdc 250A 13In Stock
Min.: 1
Mult.: 1

TE Connectivity NTC Thermistors ESAPP-ESA PROBE-RTD PT1000, 2000mm 4In Stock
10Expected 8/31/2026
Min.: 1
Mult.: 1

PolyPhaser Connectorized Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 700MHz to 1000MHz, Telemetry, DC Pass, 15V, IP67, 20kA, Hybrid, Flange Mount 5In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorized Surge Protectors Type N M/F Bulkhead Coaxial RF Surge Protector, 2GHz - 6GHz, DC Block, 10W, IP67, .5uJ, 10kA, Filter 13In Stock
5On Order
Min.: 1
Mult.: 1

PolyPhaser Connectorized Surge Protectors HEMP Tested 7/16 F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, 1000W, IP67, 100 V Max., 25mJ, 20kA, Filter, Low PIM 5In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorized Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 3kW, 20uJ, 50kA, Blocking Cap, Hole Mount 18In Stock
11On Order
Min.: 1
Mult.: 1

PolyPhaser Connectorized Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 125MHz - 1GHz, DC Block, 500W, 800uJ, 50kA, Blocking Cap, Hole Mount 7In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorized Surge Protectors UHF M/F Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 2kW, 10mJ, 50kA, Blocking Cap, Bracket Up, Hole Mount 5In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorized Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 5 Pair POTS, xDSL, UL 497B 1In Stock
Min.: 1
Mult.: 1



E-T-A Circuit Breakers 508,DM,24VDC,CL,2-3-3.6,CL2,ATX 4In Stock
Min.: 1
Mult.: 1

TE Connectivity NTC Thermistors ESA PROBE-RTD PT1000 3000mm ENG MODEL 2In Stock
Min.: 1
Mult.: 1

Phoenix Contact Industrial Surge Protectors VAL-US-SPP-120/50/1+0-R 4In Stock
8On Order
Min.: 1
Mult.: 1

Phoenix Contact Industrial Surge Protectors VAL-US-SPP-120/50/3+1-R 4In Stock
Min.: 1
Mult.: 1

Phoenix Contact Industrial Surge Protectors VAL-US-SPP-277/50/1+1-R 5In Stock
Min.: 1
Mult.: 1

TDK NTC Thermistors SMD NTC Thermistor 0805 10kOhm 1% B-3455 HT Series 2,800In Stock
Min.: 1
Mult.: 1
: 4,000



PolyPhaser Surge Protection Accessories Flange to Bulkhead Type 4.3-10 Adapter Kit 9In Stock
Min.: 1
Mult.: 1



PolyPhaser Surge Protection Accessories Kit Flange to Bulkhead DIN Adapter 24In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorized Surge Protectors Type N F/F Coaxial RF Surge Protector, 40MHz - 400MHz, 100W, IP67, 60 V Max., 2.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount 7In Stock
55On Order
Min.: 1
Mult.: 1

PolyPhaser Connectorized Surge Protectors Type N F/M Coaxial RF Surge Protector, 40MHz - 400MHz, 100W, IP67, 60 V Max., 2.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount 1In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorized Surge Protectors Type N/SMA F/F Bulkhead Coaxial RF Surge Protector, 700MHz - 2.7GHz, DC Block, 300W, IP67, .5uJ, 18kA, Filter 9In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorized Surge Protectors 7/16 F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, 1.5kW, IP67, 30 V Max., 25mJ, 30kA, Filter, Low PIM -155 dBc 5In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorized Surge Protectors TNC F/M Bulkhead Coaxial RF Surge Protector, DC - 7GHz, DC Pass, 90W, IP67, 4mJ, 20kA, Gas Discharge Tube 5In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorized Surge Protectors Type N M/F Coaxial RF Surge Protector, 125MHz - 1GHz, DC Block, 375W, 220uJ, 50kA, Blocking Cap, Bracket Up, Hole Mount 17In Stock
Min.: 1
Mult.: 1