.hide-partial { max-height: none; } .show-more { display: none; }

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.
More...

Please view our selection of circuit protection devices below.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Types of Circuit Protection

List Images

Results: 362,150

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

Filter by

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.
Circuit Breakers HFD-DC BREAKER - LINE & LOAD TERMINALS HFDDC1060L Eaton Electrical 1: €696.59 1In Stock New Product	Mfr. Part No. HFDDC1060L Mouser Part No 504-HFDDC1060L New Product	Eaton Electrical	Circuit Breakers HFD-DC BREAKER - LINE & LOAD TERMINALS	Datasheet	1In Stock	€696.59 €559.89 €534.92 View Quote	Min.: 1 Mult.: 1
Circuit Breakers PDD2,3P, 100A, 100KA/240V, 50C FXFXTMTU PDD23M0100VFFL Eaton Electrical 1: €780.19 1In Stock New Product	Mfr. Part No. PDD23M0100VFFL Mouser Part No 504-PDD23M0100VFFL New Product	Eaton Electrical	Circuit Breakers PDD2,3P, 100A, 100KA/240V, 50C FXFXTMTU	Datasheet	1In Stock	€780.19 €646.32 €595.89 View Quote	Min.: 1 Mult.: 1
Circuit Breakers PDG2,3P,35A,25KA/480V,FXFXTMTU PDG23F0035TFFJ Eaton Electrical 1: €667.58 2In Stock New Product	Mfr. Part No. PDG23F0035TFFJ Mouser Part No 504-PDG23F0035TFFJ New Product	Eaton Electrical	Circuit Breakers PDG2,3P,35A,25KA/480V,FXFXTMTU	Datasheet	2In Stock	€667.58 €526.21 €485.14 View Quote	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors ESA PROBE-RTD PT1000 1000mm ENG MODEL 10219128-01 TE Connectivity 1: €428.62 1In Stock New Product	Mfr. Part No. 10219128-01 Mouser Part No 571-10219128-01 New Product	TE Connectivity	NTC (Negative Temperature Coefficient) Thermistors ESA PROBE-RTD PT1000 1000mm ENG MODEL Learn More about TE Connectivity te surface mount temperature sensors	Datasheet	1In Stock	€428.62 €343.89 €340.78 View Quote	Min.: 1 Mult.: 1
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 IS-B50LN-C0-MA PolyPhaser 1: €96.23 5In Stock New Product	Mfr. Part No. IS-B50LN-C0-MA Mouser Part No 44-IS-B50LN-C0-MA New Product	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 Learn More about PolyPhaser is b50 surge protectors	Datasheet	5In Stock	€96.23 €91.27	Min.: 1 Mult.: 1
Connectorised Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 2 Pair 100Base-T Ethernet, 1 Pair 48Vdc, UL 497B IX-2H1DC48 PolyPhaser 1: €160.07 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	€160.07 €153.30	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: €133.24 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	€133.24 €126.38	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: €43.58 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	€43.58 €40.67 €38.97 €38.96 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: €142.13 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	€142.13 €134.81	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: €200.77 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	€200.77 €192.28	Min.: 1 Mult.: 1
Circuit Breakers 508,DM,24VDC,CL,10-12-15,ATX REX22D-TD1-100-DC24V-10A/12A/15A-E E-T-A 1: €79.24 19In Stock New Product	Mfr. Part No. REX22D-TD1-100-DC24V-10A/12A/15A-E Mouser Part No 457-REX22DTD1101215E New Product	E-T-A	Circuit Breakers 508,DM,24VDC,CL,10-12-15,ATX Learn More about E-T-A eta rex22d t intelligent circuit protectors	Datasheet	19In Stock	€79.24 €65.47 €64.53 €60.85	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: €96.81 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	€96.81 €81.73 €65.47 €64.95 View €62.57 Quote	Min.: 1 Mult.: 1
Circuit Breakers 1PH/BR LC 70A MLO 2/4 Cir Al Bus N3R BR24L70RP Eaton Electrical 1: €319.39 1In Stock New Product	Mfr. Part No. BR24L70RP Mouser Part No 504-BR24L70RP New Product	Eaton Electrical	Circuit Breakers 1PH/BR LC 70A MLO 2/4 Cir Al Bus N3R	Datasheet	1In Stock	€319.39 €276.76 €252.14 €223.64 View Quote	Min.: 1 Mult.: 1
Circuit Breaker Accessories PD AUX&ALM SW 1NO/1NC PIGTAIL-30 INCHES PDGXAC Eaton Electrical 1: €192.76 4In Stock 7Expected 09/11/2026 New Product	Mfr. Part No. PDGXAC Mouser Part No 504-PDGXAC New Product	Eaton Electrical	Circuit Breaker Accessories PD AUX&ALM SW 1NO/1NC PIGTAIL-30 INCHES	Datasheet	4In Stock 7Expected 09/11/2026	€192.76 €159.76 €147.28 €121.67	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 600W,33V 5%,UNIDIR,SMB TVS SM6T33AHE3_B/H Vishay Semiconductors 1: €0.783 16,905In Stock	Mfr. Part No. SM6T33AHE3_B/H Mouser Part No 78-SM6T33AHE3BH	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 600W,33V 5%,UNIDIR,SMB TVS Learn More about Vishay Semiconductors vishay semi esmp package evolution	Datasheet	16,905In Stock	Cut Tape €0.783 €0.488 €0.318 €0.212 Reel €0.20 View €0.191 €0.174 €0.159 €0.154	Min.: 1 Mult.: 1 : 750
ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SMF DO219AB SMF12A-HE3_A08 Vishay Semiconductors 1: €0.585 26,744In Stock	Mfr. Part No. SMF12A-HE3_A08 Mouser Part No 78-SMF12A-HE3A08	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SMF DO219AB	Datasheet	26,744In Stock	Cut Tape €0.585 €0.265 €0.232 €0.175 Reel €0.121 View €0.149 €0.12 €0.101 €0.099 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 600W,14V 5%,UNIDIR,SMB TVS SMBJ14AHE3_B/I Vishay Semiconductors 1: €0.783 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 €0.783 €0.488 €0.318 €0.24 Reel €0.20 View €0.218 €0.185 €0.154	Min.: 1 Mult.: 1 : 3,200
ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SMF DO219AB SMF28A-HE3_A08 Vishay Semiconductors 1: €0.585 17,185In 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	17,185In Stock	Cut Tape €0.585 €0.367 €0.235 €0.175 Reel €0.121 View €0.142 €0.12 €0.101 €0.088	Min.: 1 Mult.: 1 : 3,000
Thermal Cut-offs THERMAL PROTECTOR RP-12A Sensata Technologies 1: €13.81 725In Stock 1,000Expected 18/11/2026 New Product	Mfr. Part No. RP-12A Mouser Part No 874-RP-12A New Product	Sensata Technologies	Thermal Cut-offs THERMAL PROTECTOR Learn More about Sensata Technologies sensata rp thermal protectors	Datasheet	725In Stock 1,000Expected 18/11/2026	€13.81	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 400W,30V 5%,BIDIR,SMA TVS P4SMA30CAHE3_A/I Vishay Semiconductors 1: €0.688 17,246In Stock	Mfr. Part No. P4SMA30CAHE3_A/I Mouser Part No 78-P4SMA30CAHE3_A/I	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 400W,30V 5%,BIDIR,SMA TVS Learn More about Vishay Semiconductors vishay semi esmp package evolution	Datasheet	17,246In Stock	Cut Tape €0.688 €0.427 €0.28 €0.211 Reel €0.144 View €0.192 €0.175 €0.171 €0.133	Min.: 1 Mult.: 1 : 7,500
ESD Protection Diodes / TVS Diodes TVS Hi-Power Diode 20KPA300CA Littelfuse 1: €17.30 4,178In Stock	Mfr. Part No. 20KPA300CA Mouser Part No 576-20KPA300CA	Littelfuse	ESD Protection Diodes / TVS Diodes TVS Hi-Power Diode Learn More about Littelfuse tvsdiodes	Datasheet	4,178In Stock	Cut Tape €17.30 €14.05 €13.74 Reel €13.74	Min.: 1 Mult.: 1 : 800
ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial 30KPA48CA Littelfuse 1: €21.04 2,598In Stock	Mfr. Part No. 30KPA48CA Mouser Part No 576-30KPA48CA	Littelfuse	ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial Learn More about Littelfuse tvsdiodes	Datasheet	2,598In Stock	Cut Tape €21.04 €15.39 €14.17 €14.15 €13.79 Reel €13.79	Min.: 1 Mult.: 1 : 800
NTC (Negative Temperature Coefficient) Thermistors 703/10 K/A 17 2% B57703M0103A017 TDK 1: €2.88 17,987In Stock	Mfr. Part No. B57703M0103A017 Mouser Part No 871-B57703M0103A017	TDK	NTC (Negative Temperature Coefficient) Thermistors 703/10 K/A 17 2% Learn More about TDK epcos ntc thermistors	Datasheet	17,987In Stock	€2.88 €2.76 €2.61 €2.50 View €2.32 €2.31 €2.18 €2.12 €1.97	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial 30KPA260CA Littelfuse 1: €27.35 727In Stock	Mfr. Part No. 30KPA260CA Mouser Part No 576-30KPA260CA	Littelfuse	ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial Learn More about Littelfuse tvsdiodes	Datasheet	727In Stock	Cut Tape €27.35 €21.65 €20.00 Reel €20.00	Min.: 1 Mult.: 1 : 800
ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 36A 5mA 2uA SM8S36A Littelfuse 1: €3.57 1,184In Stock	Mfr. Part No. SM8S36A Mouser Part No 576-SM8S36A	Littelfuse	ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 36A 5mA 2uA Learn More about Littelfuse sm8s tvs diodes	Datasheet	1,184In Stock	Cut Tape €3.57 €2.34 €1.96 €1.69 Reel €1.31 €1.23 MouseReel Available	Min.: 1 Mult.: 1 : 500

Circuit Protection

Types of Circuit Protection

Customer Service Office

Company

Resources

Support