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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.
Triacs Triacs 2N6349AG Littelfuse 1: $2.47 2,176In Stock	Mfr. Part No. 2N6349AG Mouser Part No 863-2N6349AG	Littelfuse	Triacs Triacs	Datasheet	2,176In Stock	Cut Tape $2.47 $1.70 $1.24 $1.13 Reel $1.13	Min.: 1 Mult.: 1 : 1,000
SCRs 600V 25A 2N6508G Littelfuse 1: $4.28 2,908In Stock	Mfr. Part No. 2N6508G Mouser Part No 863-2N6508G	Littelfuse	SCRs 600V 25A	Datasheet	2,908In Stock	$4.28 $2.22 $2.02 $1.99	Min.: 1 Mult.: 1
Triacs 16A 35mA 800V IGT 3 QUAD INTERNL ISLTD BTA16-800CW3G Littelfuse 1: $5.18 1,274In Stock	Mfr. Part No. BTA16-800CW3G Mouser Part No 863-BTA16-800CW3G	Littelfuse	Triacs 16A 35mA 800V IGT 3 QUAD INTERNL ISLTD	Datasheet	1,274In Stock	$5.18 $2.73 $2.53	Min.: 1 Mult.: 1
Inrush Current Limiters S 236/80 M51 B57236S0800M051 TDK 1: $1.09 2,968In Stock	Mfr. Part No. B57236S0800M051 Mouser Part No 871-B57236S0800M051	TDK	Inrush Current Limiters S 236/80 M51 Learn More about TDK epcos inrush current limiters	Datasheet	2,968In Stock	Cut Tape $1.09 $1.01 $0.831 $0.767 Reel $0.484 View $0.689 $0.635 $0.54 $0.464	Min.: 1 Mult.: 1 : 3,000
Inrush Current Limiters S 238/15 M B57238S0150M000 TDK 1: $1.31 2,662In Stock	Mfr. Part No. B57238S0150M000 Mouser Part No 871-B57238S0150M000	TDK	Inrush Current Limiters S 238/15 M Learn More about TDK epcos inrush current limiters	Datasheet	2,662In Stock	$1.31 $1.21 $1.01 $0.926 View $0.832 $0.767 $0.706 $0.582	Min.: 1 Mult.: 1
Inrush Current Limiters S 238/16 M 20% B57238S0160M000 TDK 1: $1.50 4,984In Stock	Mfr. Part No. B57238S0160M000 Mouser Part No 871-B57238S0160M000	TDK	Inrush Current Limiters S 238/16 M 20% Learn More about TDK epcos inrush current limiters	Datasheet	4,984In Stock	$1.50 $1.39 $1.15 $1.06 View $0.952 $0.878 $0.81 $0.803 $0.668	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC Thermistor 0805 10K J62 B-3650 B57442V5103J062 TDK 1: $0.45 24,561In Stock 21,000Expected 15/02/2027	Mfr. Part No. B57442V5103J062 Mouser Part No 871-B57442V5103J62	TDK	NTC (Negative Temperature Coefficient) Thermistors NTC Thermistor 0805 10K J62 B-3650 Learn More about TDK b574xv5 ntc thermistors	Datasheet	24,561In Stock 21,000Expected 15/02/2027	Cut Tape $0.45 $0.426 $0.398 $0.378 View Reel $0.225 $0.36 $0.33 $0.27 $0.261 $0.225	Min.: 1 Mult.: 1 : 3,000
NTC (Negative Temperature Coefficient) Thermistors 1307ohm 4036 2% 50mW Probe K524/100k/A005 B57524K0104A005 TDK 1: $6.63 330In Stock	Mfr. Part No. B57524K0104A005 Mouser Part No 871-B57524K0104A005	TDK	NTC (Negative Temperature Coefficient) Thermistors 1307ohm 4036 2% 50mW Probe K524/100k/A005 Learn More about TDK epcos ntc thermistors	Datasheet	330In Stock	$6.63 $5.98 $5.73 $5.44 View $5.24 $4.90 $4.89 $4.65 $4.55	Min.: 1 Mult.: 1
PTC (Positive Temperature Coefficient) Thermistors 00C 12Vdc 20ohms Disc PTC Heating B59060A0000A010 TDK 1: $1.49 2,935In Stock	Mfr. Part No. B59060A0000A010 Mouser Part No 871-B59060A0000A010	TDK	PTC (Positive Temperature Coefficient) Thermistors 00C 12Vdc 20ohms Disc PTC Heating Learn More about TDK epcos ptc thermistors	Datasheet	2,935In Stock	$1.49 $1.42 $1.34 $1.28 View $1.23 $1.12 $1.02	Min.: 1 Mult.: 1
PTC (Positive Temperature Coefficient) Thermistors 40C 12Vdc 4ohms Disc PTC Heating B59060A0040A010 TDK 1: $1.49 2,560In Stock	Mfr. Part No. B59060A0040A010 Mouser Part No 871-B59060A0040A010	TDK	PTC (Positive Temperature Coefficient) Thermistors 40C 12Vdc 4ohms Disc PTC Heating Learn More about TDK epcos kits	Datasheet	2,560In Stock	$1.49 $1.42 $1.35 $1.29 View $1.16 $1.14 $1.03	Min.: 1 Mult.: 1
Varistors 460VAC 10% 5mm StandarD B72205S0461K101 TDK 1: $0.35 21,486In Stock	Mfr. Part No. B72205S0461K101 Mouser Part No 871-B72205S461K101	TDK	Varistors 460VAC 10% 5mm StandarD Learn More about TDK epcosvaristors	Datasheet	21,486In Stock	$0.35 $0.215 $0.171 $0.162 View $0.155 $0.148 $0.143 $0.141 $0.134	Min.: 1 Mult.: 1
Varistors 175VAC 10% 14mm MP AdvanceD B72214P2171K101 TDK 1: $0.62 7,664In Stock	Mfr. Part No. B72214P2171K101 Mouser Part No 871-B72214P2171K101	TDK	Varistors 175VAC 10% 14mm MP AdvanceD Learn More about TDK epcosvaristors	Datasheet	7,664In Stock	$0.62 $0.393 $0.319 $0.304 View $0.292 $0.271 $0.269	Min.: 1 Mult.: 1
Varistors 510VAC 10% 14mm MP AdvanceD B72214P2511K101 TDK 1: $0.78 5,735In Stock	Mfr. Part No. B72214P2511K101 Mouser Part No 871-B72214P2511K101	TDK	Varistors 510VAC 10% 14mm MP AdvanceD Learn More about TDK epcosvaristors	Datasheet	5,735In Stock	$0.78 $0.554 $0.517 $0.512 View $0.504 $0.498	Min.: 1 Mult.: 1
Varistors 300VAC 10% 14mm StandarD B72214S0301K551 TDK 1: $0.52 9,470In Stock	Mfr. Part No. B72214S0301K551 Mouser Part No 871-B72214S0301K551	TDK	Varistors 300VAC 10% 14mm StandarD Learn More about TDK epcosvaristors	Datasheet	9,470In Stock	Cut Tape $0.52 $0.324 $0.261 $0.249 Reel $0.227 View $0.231 $0.211 $0.21	Min.: 1 Mult.: 1 : 4,800
Varistors 680VAC 10% 20mm SuperioR MP B72220P3681K101 TDK 1: $2.40 8,000In Stock	Mfr. Part No. B72220P3681K101 Mouser Part No 871-B72220P3681K101	TDK	Varistors 680VAC 10% 20mm SuperioR MP Learn More about TDK epcos lumileds led solutions	Datasheet	8,000In Stock	$2.40 $1.63 $1.46 $1.38 View $1.33 $1.19 $1.14 $1.03	Min.: 1 Mult.: 1
Varistors 130VAC 10% 20mm StandarD B72220S0131K101 TDK 1: $1.02 6,662In Stock	Mfr. Part No. B72220S0131K101 Mouser Part No 871-B72220S131K101	TDK	Varistors 130VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	6,662In Stock	$1.02 $0.664 $0.518 $0.465 View $0.431 $0.43 $0.393	Min.: 1 Mult.: 1
Varistors 320VAC 10% 20mm StandarD B72220S0321K101 TDK 1: $0.63 39,912In Stock	Mfr. Part No. B72220S0321K101 Mouser Part No 871-B72220S321K101	TDK	Varistors 320VAC 10% 20mm StandarD Learn More about TDK epcosvaristors	Datasheet	39,912In Stock	$0.63 $0.381 $0.268 $0.256 View $0.249 $0.184 $0.169	Min.: 1 Mult.: 1
Varistors 1210 14V 400A 2000pF B72530T0140K062 TDK 1: $0.69 45,043In Stock	Mfr. Part No. B72530T0140K062 Mouser Part No 871-B72530T140K62	TDK	Varistors 1210 14V 400A 2000pF Learn More about TDK epcosvaristors	Datasheet	45,043In Stock	Cut Tape $0.69 $0.442 $0.36 $0.344 Reel $0.313 View $0.33 $0.302 $0.294 $0.253 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Varistors 2220 14Vrms 10A B72540E3140S272 TDK 1: $4.20 6,000In Stock	Mfr. Part No. B72540E3140S272 Mouser Part No 871-B72540E3140S272	TDK	Varistors 2220 14Vrms 10A Learn More about TDK automotive multilayer varistors	Datasheet	6,000In Stock	Cut Tape $4.20 $3.17 $2.91 $2.63 View Reel $2.11 $2.50 $2.41 $2.19 $2.11 Quote MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Varistors Chip Varistors / Ceramic Transient Voltage Suppressors, Maximum continuous voltage=150V, Maximum Clamping Voltage (8/20 s)=360V B72580T6111K072 TDK 1: $1.04 16,553In Stock	Mfr. Part No. B72580T6111K072 Mouser Part No 871-B72580T6111K72	TDK	Varistors Chip Varistors / Ceramic Transient Voltage Suppressors, Maximum continuous voltage=150V, Maximum Clamping Voltage (8/20 s)=360V Learn More about TDK epcosvaristors	Datasheet	16,553In Stock	Cut Tape $1.04 $0.672 $0.554 $0.531 Reel $0.487 View $0.511 $0.476 $0.46 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Circuit Breakers Cir Brkr Hyd Mag IELHK11-1REC4-62-30.0-E-01-V AIRPAX 1: $169.26 12In Stock	Mfr. Part No. IELHK11-1REC4-62-30.0-E-01-V Mouser Part No 874-HK111REC46230E1V	AIRPAX	Circuit Breakers Cir Brkr Hyd Mag	Datasheet	12In Stock	$169.26 $153.99 $106.98 $94.04 View $77.79 Quote	Min.: 1 Mult.: 1
Circuit Breakers CIRCUIT BREAKER IUGN66-1-61-10.0 AIRPAX 1: $137.89 9In Stock	Mfr. Part No. IUGN66-1-61-10.0 Mouser Part No 874-IUGN66-1-61-10.0	AIRPAX	Circuit Breakers CIRCUIT BREAKER Learn More about AIRPAX sensata iug breaker	Datasheet	9In Stock	$137.89 $125.47 $87.17 $76.60 View $63.40 Quote	Min.: 1 Mult.: 1
Circuit Breakers Cir Brkr,HydMag IULNK1-1-51-7.00-K AIRPAX 1: $91.53 14In Stock	Mfr. Part No. IULNK1-1-51-7.00-K Mouser Part No 874-IULNK11517K	AIRPAX	Circuit Breakers Cir Brkr,HydMag	Datasheet	14In Stock	$91.53 $83.27 $57.85 $50.85 View $42.07 $38.57 Quote	Min.: 1 Mult.: 1
Circuit Breakers MSP S00 2.8-4A AUX 1NO 1NC SCREW 3RV20111EA15 Siemens 1: $310.15 10In Stock	Mfr. Part No. 3RV20111EA15 Mouser Part No 982-3RV20111EA15	Siemens	Circuit Breakers MSP S00 2.8-4A AUX 1NO 1NC SCREW Learn More about Siemens 3rv2 circuit breakers	Datasheet	10In Stock	$310.15 $267.60 $258.07 View Quote	Min.: 1 Mult.: 1
Circuit Breakers MSP S00 9-12.5A SCREW 3RV20111KA10 Siemens 1: $281.63 11In Stock	Mfr. Part No. 3RV20111KA10 Mouser Part No 982-3RV20111KA10	Siemens	Circuit Breakers MSP S00 9-12.5A SCREW Learn More about Siemens 3rv2 circuit breakers	Datasheet	11In Stock	$281.63 $251.62 $235.78 $198.83 View Quote	Min.: 1 Mult.: 1

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Circuit Protection

Types of Circuit Protection