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: 362,154
Select Image Part # Mfr. Description Datasheet Availability Pricing (CAD) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Bourns Industrial & Electrical Fuses POWrFuse BD 1000Vdc 350A 6In Stock
Min.: 1
Mult.: 1

Littelfuse Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 315A 2In Stock
1Expected 2026-09-03
Min.: 1
Mult.: 1

Littelfuse Triacs 0.8A 600V Sens SOT-89 700In Stock
200Expected 2026-08-12
Min.: 1
Mult.: 1
: 1,000

Phoenix Contact Industrial Surge Protectors SFP2-1S-1-20A-230AC-UT 2In Stock
24Expected 2026-10-26
Min.: 1
Mult.: 1

Bourns Industrial & Electrical Fuses POWrFuse BD 1000Vdc 550A 4In Stock
Min.: 1
Mult.: 1

Littelfuse Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 250A 3In Stock
Min.: 1
Mult.: 1

Littelfuse ESD Protection Diodes / TVS Diodes 7V & 12V 75pF 20A SOT23-3L 2,086In Stock
100Expected 2026-11-17
Min.: 1
Mult.: 1
: 3,000

Bourns ESD Protection Diodes / TVS Diodes DIO TVS VWM 12V 400W BIDIR SOD323 AUTO GRADE 2,100In Stock
Min.: 1
Mult.: 1
: 3,000

Bourns Industrial & Electrical Fuses POWrFuse BD 1000Vdc 315A 6In Stock
Min.: 1
Mult.: 1

Littelfuse ESD Protection Diodes / TVS Diodes 5V, 6A, SOD882 10,080In Stock
Min.: 1
Mult.: 1
: 10,000

Bourns ESD Protection Diodes / TVS Diodes DIO TVS VWM 24V 350W BIDIR SOD323 Automotive 2,044In Stock
Min.: 1
Mult.: 1
: 3,000

Bourns Industrial & Electrical Fuses POWrFuse BD 1000Vdc 250A 6In Stock
Min.: 1
Mult.: 1

TE Connectivity NTC Thermistors Glass Encapsulated NTC Thermistor, Probe, Surface Mount 15K4 1In Stock
Min.: 1
Mult.: 1

Bourns ESD Protection Diodes / TVS Diodes DIO TVS VWM 03V 400W BIDIR SOD323 AUTO GRADE 2,030In Stock
Min.: 1
Mult.: 1
: 3,000

Bourns ESD Protection Diodes / TVS Diodes DIO TVS VWM 36V 400W BIDIR SOD323 AUTO GRADE 2,099In Stock
Min.: 1
Mult.: 1
: 3,000

Littelfuse Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 450A 3In Stock
Min.: 1
Mult.: 1

Littelfuse ESD Protection Diodes / TVS Diodes 30V, 100A ,DNF2020-6L 3,100In Stock
Min.: 1
Mult.: 1
: 3,000

Littelfuse SCRs 8A 800V Std TO-251 V-PAK 750In Stock
Min.: 1
Mult.: 1

Bourns ESD Protection Diodes / TVS Diodes ESD 3.3V BI 8,400In Stock
Min.: 1
Mult.: 1
: 12,000

Bourns ESD Protection Diodes / TVS Diodes ESD 5V UNI 8,393In Stock
Min.: 1
Mult.: 1
: 12,000

Bourns Industrial & Electrical Fuses POWrFuse BD 1000Vdc 600A 4In Stock
Min.: 1
Mult.: 1

Eaton Electrical Circuit Breakers LG 3 POLE 150KA FRAME ONLY 1In Stock
Min.: 1
Mult.: 1
Citel P8AX09-N/FF/HE
Citel Connectorized Surge Protectors 4In Stock
Min.: 1
Mult.: 1
Littelfuse SMBJ33A-E
Littelfuse ESD Protection Diodes / TVS Diodes TVS SURF MT DO214AA - SMBJ33A 3K T&R 2,083In Stock
Min.: 1
Mult.: 1
: 3,000
Eaton Electrical Circuit Breakers PDG2,3P,150A,35KA/480V,PXR25LSI 1In Stock
Min.: 1
Mult.: 1