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: 361.900
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 Mfr.
Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS
Phoenix Contact Industrial Surge Protectors VAL-US-SPP-120/65/3+1-R
Datasheet
5In Stock
Min.: 1
Mult.: 1

Littelfuse Surface Mount Fuses 60A 125VDC 14kA for high-fault DC protection
Datasheet
273In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 500

Littelfuse ESD Protection Diodes / TVS Diodes TVS 5KW AECQ-101 TR13 RoHS
Datasheet
2.172In Stock
3.000Expected 8/19/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

TE Connectivity NTC (Negative Temperature Coefficient) Thermistors ESAPP-ESA PROBE-RTD PT1000, 2000mm
Datasheet
4In Stock
10On Order
Min.: 1
Mult.: 1

PolyPhaser Surge Protection Accessories Flange to Bulkhead Type N Adapter Kit
Datasheet
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
Datasheet
9In 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
Datasheet
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
Datasheet
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
Datasheet
5In Stock
Min.: 1
Mult.: 1



PolyPhaser Surge Protection Accessories Transition Clamp with Shims to Connect Copper to Galvanized Tower Legs for 2 1/4 to 3 1/4 inch
Datasheet
9In Stock
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, w/ Bracket
Datasheet
6In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors 4.3-10 M/F Coaxial RF Surge Protector, 100MHz - 520MHz, DC Block, 750W, 20kA, Bracket Down
Datasheet
6In Stock
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors 7/16 M/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Low PIM -150 dBc, Bracket Down, Hole Mount
Datasheet
2In Stock
2Expected 7/31/2026
Min.: 1
Mult.: 1

E-T-A Circuit Breakers 508,DM,24VDC,CL,10-12-15,ATX
Datasheet
12In Stock
4Expected 8/31/2026
Min.: 1
Mult.: 1



E-T-A Circuit Breakers 508,DM,24VDC,CL,12-16-20,ATX
Datasheet
5In Stock
Min.: 1
Mult.: 1

Eaton Electrical Circuit Breakers 1PH/BR LC 70A MLO 2/4 Cir Al Bus N3R
Datasheet
1In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers CH 30MA GFI 60A/2 POLE 120/240V 10K 1In Stock
Min.: 1
Mult.: 1
Phoenix Contact Industrial Surge Protectors VAL-SPP-T2-275-1+1-UT-R
Datasheet
4In Stock
Min.: 1
Mult.: 1

Phoenix Contact Circuit Breakers PTCB TM1 2A M1 NO P
Datasheet
27In Stock
44On Order
Min.: 1
Mult.: 1

Phoenix Contact Industrial Surge Protectors VAL-US-SPP-277/50/1+0-R
Datasheet
3In Stock
5Expected 8/17/2026
Min.: 1
Mult.: 1

Phoenix Contact Industrial Surge Protectors VAL-US-SPP-400/40-P
Datasheet
7In Stock
Min.: 1
Mult.: 1

Phoenix Contact Industrial Surge Protectors VAL-US-SPP-240D/65/2+0-R
Datasheet
7In Stock
Min.: 1
Mult.: 1

Phoenix Contact Industrial Surge Protectors VAL-US-SPP-240D/65/3+0-R
Datasheet
3In Stock
3Expected 8/27/2026
Min.: 1
Mult.: 1

TDK Varistors MLV, 0603, 25V
Datasheet
2.800In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

TDK Varistors MLV, 0805, 25V
Datasheet
6.000In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000