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. 
More...

Please view our selection of circuit protection devices below.
Results: 362,351
Select Image Part # Mfr. Description Datasheet Availability Pricing (SGD) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Phoenix Contact Industrial Surge Protectors VAL-US-SPP-400/40-P 7In Stock
Min.: 1
Mult.: 1

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

Phoenix Contact Industrial Surge Protectors VAL-US-SPP-240D/65/3+0-R 5In Stock
Min.: 1
Mult.: 1

Vishay Semiconductors ESD Protection Diodes / TVS Diodes 3,000In Stock
Min.: 1
Mult.: 1
Vishay Semiconductors ESD Protection Diodes / TVS Diodes 3,000In Stock
Min.: 1
Mult.: 1
Vishay Semiconductors ESD Protection Diodes / TVS Diodes 3,000In Stock
Min.: 1
Mult.: 1
Vishay Semiconductors ESD Protection Diodes / TVS Diodes 3,000In Stock
Min.: 1
Mult.: 1
Vishay Semiconductors ESD Protection Diodes / TVS Diodes 3,000In Stock
Min.: 1
Mult.: 1
Vishay Semiconductors ESD Protection Diodes / TVS Diodes 3KW,15V 5%, DFN6546A BIDIR TVS 3,000In Stock
Min.: 1
Mult.: 1
: 1,500

Vishay Semiconductors ESD Protection Diodes / TVS Diodes 3KW,16V 5%, DFN6546A TVS 3,000In Stock
Min.: 1
Mult.: 1
: 1,500

Vishay Semiconductors ESD Protection Diodes / TVS Diodes 3KW,18V 5%, DFN6546A BIDIR TVS 3,000In Stock
Min.: 1
Mult.: 1
: 1,500

Vishay Semiconductors ESD Protection Diodes / TVS Diodes 8W,54V 5%,SMD PAR 578In Stock
Min.: 1
Mult.: 1
: 750

Vishay Semiconductors ESD Protection Diodes / TVS Diodes 8W,64V 5%,SMD PAR 568In Stock
Min.: 1
Mult.: 1
: 750

Vishay Semiconductors ESD Protection Diodes / TVS Diodes Diode, TVS, uni-dir, 1000W, 11V, 5%, SMB (DO-214AA), auto-grade 2,240In Stock
Min.: 1
Mult.: 1
: 3,200

Vishay Semiconductors ESD Protection Diodes / TVS Diodes Diode, TVS, uni-dir, 1000W, 20V, 5%, SMB (DO-214AA), auto-grade 2,233In Stock
Min.: 1
Mult.: 1
: 3,200

Vishay Semiconductors ESD Protection Diodes / TVS Diodes 400W,39V5%,SMFBIDIRTVS 8,000In Stock
Min.: 1
Mult.: 1
: 10,000

TDK Varistors MLV, 0603, 25V 2,800In Stock
Min.: 1
Mult.: 1
: 4,000

TDK Varistors MLV, 0805, 25V 6,000In Stock
Min.: 1
Mult.: 1
: 3,000

TDK Varistors MLV, 0805, 20V 6,000In Stock
Min.: 1
Mult.: 1
: 3,000

TDK Varistors MLV, 0805, 25V 6,000In Stock
Min.: 1
Mult.: 1
: 3,000

TDK Varistors MLV, 0805, 25V 6,000In Stock
Min.: 1
Mult.: 1
: 3,000

TDK Varistors MLV, 1206, 20V 6,000In Stock
Min.: 1
Mult.: 1
: 3,000

TDK Varistors MLV, 0402, 33V 7,000In Stock
Min.: 1
Mult.: 1
: 10,000

PolyPhaser Connectorised 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 Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 60 V Max., 2.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount 1In Stock
8Expected 17/7/2026
Min.: 1
Mult.: 1