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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.
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0805 10K B25/85 3435 BTN08G103F3JF2T00 Bourns 1: $0.17 2,800In Stock New Product	Mfr. Part No. BTN08G103F3JF2T00 Mouser Part No 652-TN08G103F3JF2T00 New Product	Bourns	NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0805 10K B25/85 3435 Learn More about Bourns btn08g smd ntc thermistors	Datasheet	2,800In Stock	Cut Tape $0.17 $0.148 $0.13 $0.104 Reel $0.078 View $0.091 $0.087 $0.076 $0.072 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0805 47K B25/85 3950 BTN08G473H3UF2T00 Bourns 1: $0.17 2,800In Stock New Product	Mfr. Part No. BTN08G473H3UF2T00 Mouser Part No 652-TN08G473H3UF2T00 New Product	Bourns	NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0805 47K B25/85 3950 Learn More about Bourns btn08g smd ntc thermistors	Datasheet	2,800In Stock	Cut Tape $0.17 $0.148 $0.137 $0.109 Reel $0.065 View $0.10 $0.084 $0.076 $0.062 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
ESD Protection Diodes / TVS Diodes 12V, Uni-directional, 20A-80A SVS1271P3UU.N Semtech 1: $0.54 7,000In Stock New Product	Mfr. Part No. SVS1271P3UU.N Mouser Part No 947-SVS1271P3UU.N New Product	Semtech	ESD Protection Diodes / TVS Diodes 12V, Uni-directional, 20A-80A		7,000In Stock	Cut Tape $0.54 $0.333 $0.211 $0.169 Reel $0.104 View $0.142 $0.12 $0.11 $0.097 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes 36V, Uni-directional, 20A-80A SVS3671P3UU.N Semtech 1: $0.54 7,000In Stock New Product	Mfr. Part No. SVS3671P3UU.N Mouser Part No 947-SVS3671P3UU.N New Product	Semtech	ESD Protection Diodes / TVS Diodes 36V, Uni-directional, 20A-80A		7,000In Stock	Cut Tape $0.54 $0.333 $0.211 $0.169 Reel $0.104 View $0.142 $0.12 $0.11 $0.097 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes 18 V, 0.6 pF, 10 kV AQ3118-02JTG Littelfuse 1: $1.34 1,948In Stock New Product	Mfr. Part No. AQ3118-02JTG Mouser Part No 576-AQ3118-02JTG New Product	Littelfuse	ESD Protection Diodes / TVS Diodes 18 V, 0.6 pF, 10 kV Learn More about Littelfuse aq3118 02jtg tvs diode array	Datasheet	1,948In Stock	Cut Tape $1.34 $0.84 $0.55 $0.426 $0.361 Reel $0.30 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Varistors MOV 510V 10mm 2.5KA 10% Silcn Coatng Strt Leads AEC-Q200 511KH10-AT YAGEO 1: $0.57 2,560In Stock 400On Order New Product	Mfr. Part No. 511KH10-AT Mouser Part No 603-511KH10-AT New Product	YAGEO	Varistors MOV 510V 10mm 2.5KA 10% Silcn Coatng Strt Leads AEC-Q200 Learn More about YAGEO kh at metal oxide varistors	Datasheet	2,560In Stock 400On Order	$0.57 $0.354 $0.274 $0.261 View $0.255 $0.245 $0.199	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0603 100kO 2% B25/50 4250K BTN06G104G4EF1T0A Bourns 1: $0.16 8,000In Stock New Product	Mfr. Part No. BTN06G104G4EF1T0A Mouser Part No 652-BTN061044EF1T0A New Product	Bourns	NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0603 100kO 2% B25/50 4250K Learn More about Bourns btn06g ntc thermistors	Datasheet	8,000In Stock	Cut Tape $0.16 $0.141 $0.124 $0.099 Reel $0.076 View $0.087 $0.083 $0.072 $0.069 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Varistors 20mm Radial Disc-Kinked Leads,Bulk MOV-20D152KKC Bourns 1: $3.41 175In Stock New Product	Mfr. Part No. MOV-20D152KKC Mouser Part No 652-MOV-20D152KKC New Product	Bourns	Varistors 20mm Radial Disc-Kinked Leads,Bulk Learn More about Bourns mov kc metal oxide varistors	Datasheet	175In Stock	$3.41 $2.16 $1.67 $1.56 View $1.37 $1.15 $1.12	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0805 10K B25/85 3970 BTN08G103F3VF2T00 Bourns 1: $0.17 2,800In Stock New Product	Mfr. Part No. BTN08G103F3VF2T00 Mouser Part No 652-TN08G103F3VF2T00 New Product	Bourns	NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0805 10K B25/85 3970 Learn More about Bourns btn08g smd ntc thermistors	Datasheet	2,800In Stock	Cut Tape $0.17 $0.148 $0.13 $0.104 Reel $0.078 View $0.091 $0.087 $0.076 $0.072 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0805 100K B25/85 4100 BTN08G104J4BH2T00 Bourns 1: $0.16 2,800In Stock New Product	Mfr. Part No. BTN08G104J4BH2T00 Mouser Part No 652-TN08G104J4H2T00 New Product	Bourns	NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0805 100K B25/85 4100 Learn More about Bourns btn08g smd ntc thermistors	Datasheet	2,800In Stock	Cut Tape $0.16 $0.141 $0.13 $0.104 Reel $0.062 View $0.095 $0.08 $0.072 $0.058 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
ESD Protection Diodes / TVS Diodes TVS 10KA RATED 550V BI AXIAL AK10-550C-FL Littelfuse 1: $170.82 1In Stock 56Expected 2026/12/09 New Product	Mfr. Part No. AK10-550C-FL Mouser Part No 576-AK10-550C-FL New Product	Littelfuse	ESD Protection Diodes / TVS Diodes TVS 10KA RATED 550V BI AXIAL Learn More about Littelfuse ak fl tvs diodes	Datasheet	1In Stock 56Expected 2026/12/09	$170.82 $151.56	Min.: 1 Mult.: 1
Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 315A ESR3XLUB0315XI Littelfuse 1: $584.57 2In Stock 1Expected 2026/11/16 New Product	Mfr. Part No. ESR3XLUB0315XI Mouser Part No 576-ESR3XLUB0315XI New Product	Littelfuse	Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 315A Learn More about Littelfuse esr high speed square body fuses	Datasheet	2In Stock 1Expected 2026/11/16	$584.57 $479.99 $436.80	Min.: 1 Mult.: 1
Surface Mount Fuses SF2T 1206 32V 3A Sn Tape&Reel SF2T120632V3A00TT Vishay / Sfernice 1: $0.95 3,500In Stock New Product	Mfr. Part No. SF2T120632V3A00TT Mouser Part No 594-SF2T120632V3A00T New Product	Vishay / Sfernice	Surface Mount Fuses SF2T 1206 32V 3A Sn Tape&Reel Learn More about Vishay / Sfernice vishay sft sf2t time lag acting thin film fuses	Datasheet	3,500In Stock	Cut Tape $0.95 $0.766 $0.645 $0.559 View Reel $0.345 $0.504 $0.464 $0.427 $0.397 $0.345 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0603 100kO 3% B25/50 4250K BTN06G104H4EF1T0A Bourns 1: $0.16 8,000In Stock New Product	Mfr. Part No. BTN06G104H4EF1T0A Mouser Part No 652-BTN06104H4EF1T0A New Product	Bourns	NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0603 100kO 3% B25/50 4250K Learn More about Bourns btn06g ntc thermistors	Datasheet	8,000In Stock	Cut Tape $0.16 $0.141 $0.124 $0.099 Reel $0.076 View $0.087 $0.083 $0.072 $0.069 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0805 10K B25/85 3970 BTN08G103H3VF2T00 Bourns 1: $0.17 2,800In Stock New Product	Mfr. Part No. BTN08G103H3VF2T00 Mouser Part No 652-TN08G103H3VF2T00 New Product	Bourns	NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0805 10K B25/85 3970 Learn More about Bourns btn08g smd ntc thermistors	Datasheet	2,800In Stock	Cut Tape $0.17 $0.148 $0.13 $0.104 Reel $0.078 View $0.091 $0.087 $0.076 $0.072 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0805 100K B25/50 4250 BTN08G104F4EF1T00 Bourns 1: $0.17 2,800In Stock New Product	Mfr. Part No. BTN08G104F4EF1T00 Mouser Part No 652-TN08G104F4EF1T00 New Product	Bourns	NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0805 100K B25/50 4250 Learn More about Bourns btn08g smd ntc thermistors	Datasheet	2,800In Stock	Cut Tape $0.17 $0.148 $0.137 $0.109 Reel $0.065 View $0.10 $0.084 $0.076 $0.062 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0805 100K B25/85 4100 BTN08G104F4BF2T00 Bourns 1: $0.17 2,800In Stock New Product	Mfr. Part No. BTN08G104F4BF2T00 Mouser Part No 652-TN08G104F4F2T00 New Product	Bourns	NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0805 100K B25/85 4100 Learn More about Bourns btn08g smd ntc thermistors	Datasheet	2,800In Stock	Cut Tape $0.17 $0.148 $0.13 $0.104 Reel $0.078 View $0.091 $0.087 $0.076 $0.072 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0805 100K B25/50 4250 BTN08G104J4EH1T00 Bourns 1: $0.16 2,800In Stock New Product	Mfr. Part No. BTN08G104J4EH1T00 Mouser Part No 652-TN08G104J4EH1T00 New Product	Bourns	NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0805 100K B25/50 4250 Learn More about Bourns btn08g smd ntc thermistors	Datasheet	2,800In Stock	Cut Tape $0.16 $0.141 $0.13 $0.104 Reel $0.062 View $0.095 $0.08 $0.072 $0.058 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0805 47K B25/85 3950 BTN08G473F3UF2T00 Bourns 1: $0.17 2,800In Stock New Product	Mfr. Part No. BTN08G473F3UF2T00 Mouser Part No 652-TN08G473F3UF2T00 New Product	Bourns	NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0805 47K B25/85 3950 Learn More about Bourns btn08g smd ntc thermistors	Datasheet	2,800In Stock	Cut Tape $0.17 $0.148 $0.13 $0.104 Reel $0.078 View $0.091 $0.087 $0.076 $0.072 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0805 47K B25/85 4000 BTN08G473F4AF2T00 Bourns 1: $0.17 2,800In Stock New Product	Mfr. Part No. BTN08G473F4AF2T00 Mouser Part No 652-TN08G473F4AF2T00 New Product	Bourns	NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0805 47K B25/85 4000 Learn More about Bourns btn08g smd ntc thermistors	Datasheet	2,800In Stock	Cut Tape $0.17 $0.148 $0.137 $0.109 Reel $0.065 View $0.10 $0.084 $0.076 $0.062 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0805 47K B25/85 3950 BTN08G473J3UH2T00 Bourns 1: $0.16 2,800In Stock New Product	Mfr. Part No. BTN08G473J3UH2T00 Mouser Part No 652-TN08G473J3UH2T00 New Product	Bourns	NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0805 47K B25/85 3950 Learn More about Bourns btn08g smd ntc thermistors	Datasheet	2,800In Stock	Cut Tape $0.16 $0.141 $0.124 $0.099 Reel $0.076 View $0.087 $0.083 $0.072 $0.069 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Circuit Breakers 8340-F410-P1M1-ALH0-5A E-T-A 1: $85.03 9In Stock 20Expected 2027/01/01 New At Mouser	Mfr. Part No. 8340-F410-P1M1-ALH0-5A Mouser Part No 457-4F410P1M1ALH05A New At Mouser	E-T-A	Circuit Breakers		9In Stock 20Expected 2027/01/01	$85.03 $70.54 $66.33 $55.27 View $51.60 $51.59 Quote	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 30V, 100A ,DNF2020-6L SC3000-01UTG Littelfuse 1: $1.85 3,000In Stock New Product	Mfr. Part No. SC3000-01UTG Mouser Part No 576-SC3000-01UTG New Product	Littelfuse	ESD Protection Diodes / TVS Diodes 30V, 100A ,DNF2020-6L Learn More about Littelfuse tvs spa diode arrays	Datasheet	3,000In Stock	Cut Tape $1.85 $1.16 $0.761 $0.587 Reel $0.473 View $0.498 $0.435 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0603 10kO 1% B25/50 3380K BTN06G103F3HF1T0A Bourns 1: $0.13 7,781In Stock New Product	Mfr. Part No. BTN06G103F3HF1T0A Mouser Part No 652-BTN06103F3HF1T0A New Product	Bourns	NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0603 10kO 1% B25/50 3380K Learn More about Bourns btn06g ntc thermistors	Datasheet	7,781In Stock	Cut Tape $0.13 $0.117 $0.104 $0.085 Reel $0.064 View $0.076 $0.071 $0.06 $0.059 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0603 100kO 1% B25/50 4250K BTN06G104F4EF1T0A Bourns 1: $0.16 8,000In Stock New Product	Mfr. Part No. BTN06G104F4EF1T0A Mouser Part No 652-BTN06104F4EF1T0A New Product	Bourns	NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0603 100kO 1% B25/50 4250K Learn More about Bourns btn06g ntc thermistors	Datasheet	8,000In Stock	Cut Tape $0.16 $0.141 $0.124 $0.099 Reel $0.076 View $0.087 $0.083 $0.072 $0.069 MouseReel Available	Min.: 1 Mult.: 1 : 4,000

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