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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.
Circuit Breakers 508,DM,24VDC,CL,2,3,4..6,8,10,ATX REX22D-TD2-100-DC24V-2/3/4A - 6/8/10A-E E-T-A 1: $106.24 4In Stock New Product	Mfr. Part No. REX22D-TD2-100-DC24V-2/3/4A - 6/8/10A-E Mouser Part No 457-REX22DTD2234681E New Product	E-T-A	Circuit Breakers 508,DM,24VDC,CL,2,3,4..6,8,10,ATX Learn More about E-T-A eta rex22d t intelligent circuit protectors	Datasheet	4In Stock	$106.24 $88.71 $82.45	Min.: 1 Mult.: 1
Circuit Breakers 508,DM,24VDC,CL,2-4-6,ATX REX22D-TD2-100-DC24V-2A/4A/6A-E E-T-A 1: $106.24 13In Stock New Product	Mfr. Part No. REX22D-TD2-100-DC24V-2A/4A/6A-E Mouser Part No 457-REX22DTD22A4A6AE New Product	E-T-A	Circuit Breakers 508,DM,24VDC,CL,2-4-6,ATX Learn More about E-T-A eta rex22d t intelligent circuit protectors	Datasheet	13In Stock	$106.24 $88.71 $82.45	Min.: 1 Mult.: 1
Circuit Breakers 508,DM,24VDC,CL,2CH,1-3.6,CL2,ATX REX22D-TE2-100-DC24V-1A-3,6A-CL2-E E-T-A 1: $103.84 9In Stock New Product	Mfr. Part No. REX22D-TE2-100-DC24V-1A-3,6A-CL2-E Mouser Part No 457-REX22DTE2136CLE New Product	E-T-A	Circuit Breakers 508,DM,24VDC,CL,2CH,1-3.6,CL2,ATX Learn More about E-T-A eta rex22d t intelligent circuit protectors	Datasheet	9In Stock	$103.84 $86.55 $80.60	Min.: 1 Mult.: 1
Circuit Breakers FDB 3P 20A TRIP, 600V CLASS, LINE & LOAD FDB3020L Eaton Electrical 1: $1,292.71 1In Stock New Product	Mfr. Part No. FDB3020L Mouser Part No 504-FDB3020L New Product	Eaton Electrical	Circuit Breakers FDB 3P 20A TRIP, 600V CLASS, LINE & LOAD	Datasheet	1In Stock	$1,292.71	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC NI 0.5 LEAD 10K SPECIAL TOL blk E3 A NTCLE203E3103SB0A Vishay / BC Components 1: $1.77 448In Stock New Product	Mfr. Part No. NTCLE203E3103SB0A Mouser Part No 594-NTCLE23E313SB New Product	Vishay / BC Components	NTC (Negative Temperature Coefficient) Thermistors NTC NI 0.5 LEAD 10K SPECIAL TOL blk E3 A	Datasheet	448In Stock	$1.77 $1.33 $1.07 $1.00 View $0.976 $0.819 $0.754 $0.695	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE DFN1006-2A VESD29D1-HD1HG3-08 Vishay 1: $0.511 9,750In Stock New Product	Mfr. Part No. VESD29D1-HD1HG3-08 Mouser Part No 78-VESD29D1-HD1H3-08 New Product	Vishay	ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE DFN1006-2A		9,750In Stock	Cut Tape $0.511 $0.361 $0.176 $0.147 Reel $0.067 View $0.102 $0.088 $0.08 $0.062	Min.: 1 Mult.: 1 : 10,000
Thermal Cut-offs TCO, High Current, SMD, 90C, Self Hold AEC-Q200 SD90ABB Bourns 1: $1.97 14,934In Stock	Mfr. Part No. SD90ABB Mouser Part No 652-SD90ABB	Bourns	Thermal Cut-offs TCO, High Current, SMD, 90C, Self Hold AEC-Q200 Learn More about Bourns ad sd miniature tco devices	Datasheet	14,934In Stock	Cut Tape $1.97 $1.86 $1.76 $1.67 View Reel $1.13 $1.60 $1.40 $1.33 $1.13 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Circuit Breakers 508,DM,24VDC,CL,1-2-4,ATX, REX22D-TD2-100-DC24V-1A/2A/4A-E E-T-A 1: $106.24 4In Stock New Product	Mfr. Part No. REX22D-TD2-100-DC24V-1A/2A/4A-E Mouser Part No 457-REX22DTD2124E New Product	E-T-A	Circuit Breakers 508,DM,24VDC,CL,1-2-4,ATX, Learn More about E-T-A eta rex22d t intelligent circuit protectors	Datasheet	4In Stock	$106.24 $88.71 $82.45	Min.: 1 Mult.: 1
Circuit Breakers 508,DM,24VDC,CL,6-8-10,ATX REX22D-TD2-100-DC24V-6A/8A/10A-E E-T-A 1: $106.24 7In Stock New Product	Mfr. Part No. REX22D-TD2-100-DC24V-6A/8A/10A-E Mouser Part No 457-REX22DTD26810E New Product	E-T-A	Circuit Breakers 508,DM,24VDC,CL,6-8-10,ATX Learn More about E-T-A eta rex22d t intelligent circuit protectors	Datasheet	7In Stock	$106.24 $88.71 $82.45	Min.: 1 Mult.: 1
Circuit Breakers 508,DM,24VDC,CL,2CH,1-10A,ATX REX22D-TE2-100-DC24V-1A-10A-E E-T-A 1: $103.84 4In Stock New Product	Mfr. Part No. REX22D-TE2-100-DC24V-1A-10A-E Mouser Part No 457-REX22DTE21A10AE New Product	E-T-A	Circuit Breakers 508,DM,24VDC,CL,2CH,1-10A,ATX Learn More about E-T-A eta rex22d t intelligent circuit protectors	Datasheet	4In Stock	$103.84 $86.55 $80.60	Min.: 1 Mult.: 1
Circuit Breakers Type BR Breaker 100A/2 Pole 120/240V 10K BR2100 Eaton Electrical 1: $449.62 3In Stock New Product	Mfr. Part No. BR2100 Mouser Part No 504-BR2100 New Product	Eaton Electrical	Circuit Breakers Type BR Breaker 100A/2 Pole 120/240V 10K	Datasheet	3In Stock	$449.62 $372.46 $343.32 View Quote	Min.: 1 Mult.: 1
Connectorised Surge Protectors Indoor 10Gb/s (Cat6A) POE Surge Protective Device with Mounting Kit MJ8-POE-C6A/G/KF Citel 1: $103.81 7In Stock New Product	Mfr. Part No. MJ8-POE-C6A/G/KF Mouser Part No 703-MJ8-POE-C6A/G/KF New Product	Citel	Connectorised Surge Protectors Indoor 10Gb/s (Cat6A) POE Surge Protective Device with Mounting Kit	Datasheet	7In Stock	$103.81 $89.45 $81.89 $64.37 View $64.34 Quote	Min.: 1 Mult.: 1
Circuit Breaker Accessories LATCH CHECK SWITCH Eaton Electrical 699B147G01 699B147G01 Eaton Electrical 1: $1,226.55 5In Stock New Product	Mfr. Part No. 699B147G01 Mouser Part No 504-699B147G01 New Product	Eaton Electrical	Circuit Breaker Accessories LATCH CHECK SWITCH	Datasheet	5In Stock	$1,226.55	Min.: 1 Mult.: 1
Connectorised Surge Protectors 4.3-10 F/F BULKHEAD COAXIAL RF SURGE PROTECTOR 698 PE73SP1061 Pasternack 1: $203.46 1In Stock New Product	Mfr. Part No. PE73SP1061 Mouser Part No 28-PE73SP1061 New Product	Pasternack	Connectorised Surge Protectors 4.3-10 F/F BULKHEAD COAXIAL RF SURGE PROTECTOR 698	Datasheet	1In Stock	$203.46 $181.73 $178.26 $177.62 View Quote	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: $92.16 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	$92.16 $76.14 $75.05 $70.77	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: $112.59 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	$112.59 $95.05 $76.14 $75.54 View $72.77 Quote	Min.: 1 Mult.: 1
Circuit Breakers 1PH/BR LC 70A MLO 2/4 Cir Al Bus N3R BR24L70RP Eaton Electrical 1: $371.45 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	$371.45 $321.87 $293.24 $260.09 View Quote	Min.: 1 Mult.: 1
Circuit Breaker Accessories PD AUX&ALM SW 1NO/1NC PIGTAIL-30 INCHES PDGXAC Eaton Electrical 1: $224.18 2In Stock 4Expected 2026/10/06 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	2In Stock 4Expected 2026/10/06	$224.18 $185.80 $171.29 $141.50	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE DFN1006-2A VESD16D1-HD1HG3-08 Vishay 1: $0.511 9,750In Stock New Product	Mfr. Part No. VESD16D1-HD1HG3-08 Mouser Part No 78-VESD16D1-HD1H3-08 New Product	Vishay	ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE DFN1006-2A		9,750In Stock	Cut Tape $0.511 $0.361 $0.176 $0.147 Reel $0.067 View $0.102 $0.088 $0.08 $0.062	Min.: 1 Mult.: 1 : 10,000
Industrial Surge Protectors DD15-24V D-sub Data Line Surge Protectice Device (SPD) , 24V, 9 wire+G DD9-24V Citel 1: $111.80 35In Stock	Mfr. Part No. DD9-24V Mouser Part No 703-DD9-24V	Citel	Industrial Surge Protectors DD15-24V D-sub Data Line Surge Protectice Device (SPD) , 24V, 9 wire+G Learn More about Citel surge suppressors	Datasheet	35In Stock	$111.80 $94.03 $89.10 $89.09 View $89.07 $69.29 Quote	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 600W,14V 5%,UNIDIR,SMB TVS SMBJ14AHE3_B/I Vishay Semiconductors 1: $0.80 8,898In 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	8,898In Stock	Cut Tape $0.80 $0.50 $0.322 $0.245 Reel $0.19 View $0.221 $0.174 $0.166 $0.151	Min.: 1 Mult.: 1 : 3,200
ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SMF DO219AB SMF28A-HE3_A08 Vishay Semiconductors 1: $0.52 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 $0.52 $0.328 $0.209 $0.167 Reel $0.119 View $0.14 $0.108 $0.102 $0.092	Min.: 1 Mult.: 1 : 3,000
Connectorised Surge Protectors Type N F/F In/Out Bulkhead Coax RF Surge Protector, DC - 7GHz and 3GHz - 4GHz, DC Pass, 90W, IP67, 20kA, Gas Discharge Tube, BiDirect PE73SP1038 Pasternack 1: $129.52 6In Stock New Product	Mfr. Part No. PE73SP1038 Mouser Part No 28-PE73SP1038 New Product	Pasternack	Connectorised Surge Protectors Type N F/F In/Out Bulkhead Coax RF Surge Protector, DC - 7GHz and 3GHz - 4GHz, DC Pass, 90W, IP67, 20kA, Gas Discharge Tube, BiDirect	Datasheet	6In Stock	$129.52 $114.67 $113.63 $111.54 View $108.21 Quote	Min.: 1 Mult.: 1
Circuit Breaker Accessories 508, DM, 40A Supply Module, IOLink, ATEX EM12D-TIO-000-DC24V-40A-E E-T-A 1: $163.84 6In Stock New Product	Mfr. Part No. EM12D-TIO-000-DC24V-40A-E Mouser Part No 457-EM12DTIO24V4AE New Product	E-T-A	Circuit Breaker Accessories 508, DM, 40A Supply Module, IOLink, ATEX	Datasheet	6In Stock	$163.84 $135.85 $113.36 $108.30 $105.34	Min.: 1 Mult.: 1
Circuit Breaker Accessories 508, DM, 40A Supply Module, Modbus, ATEX EM12D-TMB-000-DC24V-40A-E E-T-A 1: $181.71 3In Stock New Product	Mfr. Part No. EM12D-TMB-000-DC24V-40A-E Mouser Part No 457-EM12DTMB24V4AE New Product	E-T-A	Circuit Breaker Accessories 508, DM, 40A Supply Module, Modbus, ATEX	Datasheet	3In Stock	$181.71 $176.68 $157.56 $146.42	Min.: 1 Mult.: 1

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