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Circuit Protection

Circuit Protection devices and components are available at Mouser from industry leading manufacturers. Mouser is an authorized distributor for many circuit protection manufacturers including Bourns, Eaton, TDK, Littelfuse, Semtech, Vishay, & more.
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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.
Surface Mount Fuses 1206 high-current met-foil. 25A SF-1206HH2500R-2 Bourns 1: $0.64 8,943In Stock	Mfr. Part No. SF-1206HH2500R-2 Mouser Part No 652-SF-1206HH2500R-2	Bourns	Surface Mount Fuses 1206 high-current met-foil. 25A Learn More about Bourns sf1206hhr sf1206hhar fuses	Datasheet	8,943In Stock	Cut Tape $0.64 $0.578 $0.50 $0.464 Reel $0.365 View $0.432 $0.419 $0.406 $0.364 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.5KW,47V 5%,UNIDIR,SMC TVS 1.5SMC47AHE3_A/I Vishay Semiconductors 1: $1.39 6,973In Stock	Mfr. Part No. 1.5SMC47AHE3_A/I Mouser Part No 78-1.5SMC47AHE3_A/I	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 1.5KW,47V 5%,UNIDIR,SMC TVS Learn More about Vishay Semiconductors vishay 1point5smc tvs diodes	Datasheet	6,973In Stock	Cut Tape $1.39 $0.874 $0.573 $0.421 Reel $0.352 View $0.383 $0.34 $0.295 $0.245	Min.: 1 Mult.: 1 : 3,500
Fuse Clips 3AG Clip Brass & Nickel Plated 01010002Z Littelfuse 1: $0.50 233,645In Stock	Mfr. Part No. 01010002Z Mouser Part No 576-01010002Z	Littelfuse	Fuse Clips 3AG Clip Brass & Nickel Plated Learn More about Littelfuse 6x32 3ab3ag fuseholders	Datasheet	233,645In Stock	$0.50 $0.415 $0.382 $0.317 View $0.289 $0.268 $0.247 $0.227 $0.188	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial 30KPA60A Littelfuse 1: $17.04 1,066In Stock	Mfr. Part No. 30KPA60A Mouser Part No 576-30KPA60A	Littelfuse	ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial Learn More about Littelfuse tvsdiodes	Datasheet	1,066In Stock	Cut Tape $17.04 $13.77 $13.00 $12.85 $12.24 Reel $12.23	Min.: 1 Mult.: 1 : 800
Surface Mount Fuses .0375A 4.8mOhm Red T hin Film Fuses 0603 F0603G0R03FNTR KYOCERA AVX 1: $1.16 85,695In Stock	Mfr. Part No. F0603G0R03FNTR Mouser Part No 581-F0603G0R03FNTR	KYOCERA AVX	Surface Mount Fuses .0375A 4.8mOhm Red T hin Film Fuses 0603	Datasheet	85,695In Stock	Cut Tape $1.16 $0.922 $0.777 $0.674 Reel $0.437 View $0.606 $0.559 $0.515 $0.414 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
PTC (Positive Temperature Coefficient) Thermistors PTCEL13EL 120ohms PTCEL13R121MBE Vishay / BC Components 1: $2.57 17,955In Stock	Mfr. Part No. PTCEL13R121MBE Mouser Part No 594-PTCEL13R121MBE	Vishay / BC Components	PTC (Positive Temperature Coefficient) Thermistors PTCEL13EL 120ohms Learn More about Vishay / BC Components vishay ptcel ptc thermistors	Datasheet	17,955In Stock	$2.57 $2.28 $1.85 $1.72 View $1.51 $1.38 $1.31 $1.21 $1.19	Min.: 1 Mult.: 1
Varistors 1206 30V 200A 500pF B72520T300K62 TDK 1: $0.30 103,119In Stock	Mfr. Part No. B72520T300K62 Mouser Part No 871-B72520T300K62	TDK	Varistors 1206 30V 200A 500pF Learn More about TDK epcosvaristors	Datasheet	103,119In Stock	Cut Tape $0.30 $0.211 $0.206 Reel $0.206 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Varistors High Surge MLV Max Op VRMS 50 B72540T6500K062 TDK 1: $3.05 8,509In Stock	Mfr. Part No. B72540T6500K062 Mouser Part No 871-B72540T6500K062	TDK	Varistors High Surge MLV Max Op VRMS 50 Learn More about TDK ctvs varistors	Datasheet	8,509In Stock	Cut Tape $3.05 $2.46 $2.25 $2.08 Reel $1.92 View $1.99 $1.84 $1.80 $1.77 MouseReel Available	Min.: 1 Mult.: 1 : 600
Circuit Breakers 1077, 1P, plug, 250VAC/72VDC, T, w/switch function, 1A 1180-01-1A E-T-A 1: $27.36 1,277In Stock	Mfr. Part No. 1180-01-1A Mouser Part No 457-1180-01-1A	E-T-A	Circuit Breakers 1077, 1P, plug, 250VAC/72VDC, T, w/switch function, 1A Learn More about E-T-A e t a 1180 circuit breakers	Datasheet	1,277In Stock	$27.36 $20.88 $19.47 $16.87 View $15.52 $14.51 $13.65 Quote	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial 30KPA216CA Littelfuse 1: $30.48 1,440In Stock	Mfr. Part No. 30KPA216CA Mouser Part No 576-30KPA216CA	Littelfuse	ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial Learn More about Littelfuse tvsdiodes	Datasheet	1,440In Stock	Cut Tape $30.48 $22.28 $21.42 $21.40 $18.18 Reel $17.49	Min.: 1 Mult.: 1 : 800
Circuit Breakers TCP 4 AMPS 0712259 Phoenix Contact 1: $17.29 1,404In Stock	Mfr. Part No. 0712259 Mouser Part No 651-0712259	Phoenix Contact	Circuit Breakers TCP 4 AMPS Learn More about Phoenix Contact tcp thermal circuit breakers	Datasheet	1,404In Stock	$17.29	Min.: 1 Mult.: 1
Circuit Breakers CBMC E4 24DC/1-4A+ IOL 2910410 Phoenix Contact 1: $165.00 85In Stock	Mfr. Part No. 2910410 Mouser Part No 651-2910410	Phoenix Contact	Circuit Breakers CBMC E4 24DC/1-4A+ IOL Learn More about Phoenix Contact cbmc io link	Datasheet	85In Stock	$165.00	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 600W,14V 5%,UNIDIR,SMB TVS SMBJ14AHE3_B/I Vishay Semiconductors 1: $0.91 8,748In Stock	Mfr. Part No. SMBJ14AHE3_B/I Mouser Part No 78-SMBJ14AHE3BI	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 600W,14V 5%,UNIDIR,SMB TVS Learn More about Vishay Semiconductors vishay semi esmp package evolution	Datasheet	8,748In Stock	Cut Tape $0.91 $0.567 $0.37 $0.279 Reel $0.233 View $0.254 $0.215 $0.179	Min.: 1 Mult.: 1 : 3,200
ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SMF DO219AB SMF28A-HE3_A08 Vishay Semiconductors 1: $0.68 17,155In Stock	Mfr. Part No. SMF28A-HE3_A08 Mouser Part No 78-SMF28A-HE3A08	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SMF DO219AB	Datasheet	17,155In Stock	Cut Tape $0.68 $0.427 $0.273 $0.204 Reel $0.141 View $0.165 $0.139 $0.118 $0.102	Min.: 1 Mult.: 1 : 3,000
Surface Mount Fuses 1206 high-current met-foil. 20A SF-1206HH2000R-2 Bourns 1: $0.65 9,857In Stock	Mfr. Part No. SF-1206HH2000R-2 Mouser Part No 652-SF-1206HH2000R-2	Bourns	Surface Mount Fuses 1206 high-current met-foil. 20A Learn More about Bourns sf1206hhr sf1206hhar fuses	Datasheet	9,857In Stock	Cut Tape $0.65 $0.52 $0.436 $0.399 Reel $0.31 View $0.377 $0.361 $0.341 $0.292 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Surface Mount Fuses 1206 high-current met-foil. 30A SF-1206HH3000R-2 Bourns 1: $0.61 8,941In Stock	Mfr. Part No. SF-1206HH3000R-2 Mouser Part No 652-SF-1206HH3000R-2	Bourns	Surface Mount Fuses 1206 high-current met-foil. 30A Learn More about Bourns sf1206hhr sf1206hhar fuses	Datasheet	8,941In Stock	Cut Tape $0.61 $0.539 $0.462 $0.423 Reel $0.317 View $0.40 $0.387 $0.372 $0.299 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Surface Mount Fuses 1206 high-current met-foil. 20A Auto SF-1206HHA2000R-2 Bourns 1: $1.05 10,836In Stock	Mfr. Part No. SF-1206HHA2000R-2 Mouser Part No 652-SF-1206HHA2000R2	Bourns	Surface Mount Fuses 1206 high-current met-foil. 20A Auto Learn More about Bourns sf1206hhr sf1206hhar fuses	Datasheet	10,836In Stock	Cut Tape $1.05 $0.645 $0.553 $0.51 Reel $0.376 View $0.466 $0.446 $0.431 $0.375 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Surface Mount Fuses 1206 high-current met-foil. 30A Auto SF-1206HHA3000R-2 Bourns 1: $1.05 11,570In Stock	Mfr. Part No. SF-1206HHA3000R-2 Mouser Part No 652-SF-1206HHA3000R2	Bourns	Surface Mount Fuses 1206 high-current met-foil. 30A Auto Learn More about Bourns sf1206hhr sf1206hhar fuses	Datasheet	11,570In Stock	Cut Tape $1.05 $0.891 $0.745 $0.666 Reel $0.467 View $0.599 $0.552 $0.509 $0.444 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Connectorised Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 2 Pair 100Base-T Ethernet, 1 Pair 48Vdc, UL 497B IX-2H1DC48 PolyPhaser 1: $186.13 5In Stock New Product	Mfr. Part No. IX-2H1DC48 Mouser Part No 44-IX-2H1DC48 New Product	PolyPhaser	Connectorised Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 2 Pair 100Base-T Ethernet, 1 Pair 48Vdc, UL 497B Learn More about PolyPhaser ix surge protectors	Datasheet	5In Stock	$186.13 $178.25	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 1.8GHz - 6GHz, DC Block, 10W, IP67, .5uJ, 18kA, Filter LSXL-ME PolyPhaser 1: $154.93 5In Stock New Product	Mfr. Part No. LSXL-ME Mouser Part No 44-LSXL-ME New Product	PolyPhaser	Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 1.8GHz - 6GHz, DC Block, 10W, IP67, .5uJ, 18kA, Filter Learn More about PolyPhaser 1 5mhz 6ghz surge protectors	Datasheet	5In Stock	$154.93 $146.95	Min.: 1 Mult.: 1
Surge Protection Accessories Transition Clamp with Shims to Connect Copper to Galvanized Tower Legs for 2 1/4 to 3 1/4 inch TK-3 PolyPhaser 1: $50.68 10In Stock New Product	Mfr. Part No. TK-3 Mouser Part No 44-TK-3 New Product	PolyPhaser	Surge Protection Accessories Transition Clamp with Shims to Connect Copper to Galvanized Tower Legs for 2 1/4 to 3 1/4 inch Learn More about PolyPhaser surge protector accessories	Datasheet	10In Stock	$50.68 $47.29 $45.31 $45.30 Quote Quote	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, w/ Bracket TSX-NFM-BF PolyPhaser 1: $165.27 6In Stock New Product	Mfr. Part No. TSX-NFM-BF Mouser Part No 44-TSX-NFM-BF New Product	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 Learn More about PolyPhaser 650mhz 2 7ghz surge protectors	Datasheet	6In Stock	$165.27 $156.76	Min.: 1 Mult.: 1
Connectorised Surge Protectors 4.3-10 M/F Coaxial RF Surge Protector, 100MHz - 520MHz, DC Block, 750W, 20kA, Bracket Down VHF50B43-MA-BD PolyPhaser 1: $233.45 4In Stock 4Expected 19/02/2027 New Product	Mfr. Part No. VHF50B43-MA-BD Mouser Part No 44-VHF50B43-MA-BD New Product	PolyPhaser	Connectorised Surge Protectors 4.3-10 M/F Coaxial RF Surge Protector, 100MHz - 520MHz, DC Block, 750W, 20kA, Bracket Down	Datasheet	4In Stock 4Expected 19/02/2027	$233.45 $223.58	Min.: 1 Mult.: 1
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 VHF50D-MA-PGR PolyPhaser 1: $219.26 4In Stock 4Expected 13/11/2026 New Product	Mfr. Part No. VHF50D-MA-PGR Mouser Part No 44-VHF50D-MA-PGR New Product	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 Learn More about PolyPhaser 100mhz 512mhz surge protectors	Datasheet	4In Stock 4Expected 13/11/2026	$219.26 $209.98	Min.: 1 Mult.: 1
Circuit Breakers 508,DM,24VDC,CL,12-16-20,ATX REX22D-TD1-100-DC24V-12A/16A/20A-E E-T-A 1: $112.57 5In Stock New Product	Mfr. Part No. REX22D-TD1-100-DC24V-12A/16A/20A-E Mouser Part No 457-REX22DTD1121620E New Product	E-T-A	Circuit Breakers 508,DM,24VDC,CL,12-16-20,ATX Learn More about E-T-A eta rex22d t intelligent circuit protectors	Datasheet	5In Stock	$112.57 $95.03 $76.13 $75.52 View $72.75 Quote	Min.: 1 Mult.: 1

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Circuit Protection

Types of Circuit Protection