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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.
ESD Protection Diodes / TVS Diodes 12V, Uni-directional, 20A-80A SVS1271P3UU.N Semtech 1: $0.69 8,000In 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		8,000In Stock	Cut Tape $0.69 $0.43 $0.275 $0.205 Reel $0.119 View $0.166 $0.143 $0.141 $0.113 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes 36V, Uni-directional, 20A-80A SVS3671P3UU.N Semtech 1: $0.69 8,000In 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		8,000In Stock	Cut Tape $0.69 $0.43 $0.275 $0.205 Reel $0.119 View $0.166 $0.143 $0.141 $0.113 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes 5V, 6A, SOD882 SC1003-01ETG Littelfuse 1: $0.79 10,010In Stock New Product	Mfr. Part No. SC1003-01ETG Mouser Part No 576-SC1003-01ETG New Product	Littelfuse	ESD Protection Diodes / TVS Diodes 5V, 6A, SOD882 Learn More about Littelfuse tvs spa diode arrays	Datasheet	10,010In Stock	Cut Tape $0.79 $0.497 $0.317 $0.237 Reel $0.138 View $0.192 $0.165 $0.163 $0.13 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
Varistors 20mm Radial Disc-Kinked Leads,Bulk MOV-20D182KKC Bourns 1: $3.41 200In Stock New Product	Mfr. Part No. MOV-20D182KKC Mouser Part No 652-MOV-20D182KKC New Product	Bourns	Varistors 20mm Radial Disc-Kinked Leads,Bulk Learn More about Bourns mov kc metal oxide varistors	Datasheet	200In 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 BTN08G103J3VH2T00 Bourns 1: $0.13 2,800In Stock New Product	Mfr. Part No. BTN08G103J3VH2T00 Mouser Part No 652-TN08G103J3VH2T00 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 $0.13 $0.122 $0.107 $0.10 Reel $0.074 View $0.088 $0.078 $0.07 $0.068 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
ESD Protection Diodes / TVS Diodes 18V, Uni-directional, 20A-80A SVS1871P3UU.N Semtech 1: $0.69 7,996In Stock New Product	Mfr. Part No. SVS1871P3UU.N Mouser Part No 947-SVS1871P3UU.N New Product	Semtech	ESD Protection Diodes / TVS Diodes 18V, Uni-directional, 20A-80A		7,996In Stock	Cut Tape $0.69 $0.43 $0.275 $0.205 Reel $0.119 View $0.166 $0.143 $0.141 $0.113 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 250A ESR3XLUB0250XI Littelfuse 1: $522.42 3In Stock New Product	Mfr. Part No. ESR3XLUB0250XI Mouser Part No 576-ESR3XLUB0250XI New Product	Littelfuse	Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 250A Learn More about Littelfuse esr high speed square body fuses	Datasheet	3In Stock	$522.42 $428.96 $390.36	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 7V & 12V 75pF 20A SOT23-3L SC712-02HTG Littelfuse 1: $1.40 2,216In Stock 100Expected 17/11/2026 New Product	Mfr. Part No. SC712-02HTG Mouser Part No 576-SC712-02HTG New Product	Littelfuse	ESD Protection Diodes / TVS Diodes 7V & 12V 75pF 20A SOT23-3L Learn More about Littelfuse tvs spa diode arrays	Datasheet	2,216In Stock 100Expected 17/11/2026	Cut Tape $1.40 $0.88 $0.576 $0.445 Reel $0.359 View $0.378 $0.326 $0.315 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes AUTO TVS TO-263 LOAD DUMP 33A SLD263-33A Littelfuse 1: $5.10 350In Stock New Product	Mfr. Part No. SLD263-33A Mouser Part No 576-SLD263-33A New Product	Littelfuse	ESD Protection Diodes / TVS Diodes AUTO TVS TO-263 LOAD DUMP 33A Learn More about Littelfuse sld263 tvs diodes	Datasheet	350In Stock	Cut Tape $5.10 $3.36 $2.74 $2.32 Reel $1.94 MouseReel Available	Min.: 1 Mult.: 1 : 500
ESD Protection Diodes / TVS Diodes TVS 3KW 350V 5%BI DO-214AB TR13 RoHS TPSMD350CA-A Littelfuse 1: $2.97 1,618In Stock 3,000Expected 12/01/2027 New Product	Mfr. Part No. TPSMD350CA-A Mouser Part No 576-TPSMD350CA-A New Product	Littelfuse	ESD Protection Diodes / TVS Diodes TVS 3KW 350V 5%BI DO-214AB TR13 RoHS Learn More about Littelfuse TPSMD TVS diodes	Datasheet	1,618In Stock 3,000Expected 12/01/2027	Cut Tape $2.97 $1.92 $1.56 $1.32 $1.04 Reel $0.882 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0603 10kO 2% B25/50 3380K BTN06G103G3HF1T0A Bourns 1: $0.12 7,749In Stock New Product	Mfr. Part No. BTN06G103G3HF1T0A Mouser Part No 652-BTN061033HF1T0A New Product	Bourns	NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0603 10kO 2% B25/50 3380K Learn More about Bourns btn06g ntc thermistors	Datasheet	7,749In Stock	Cut Tape $0.12 $0.105 $0.092 $0.086 Reel $0.063 View $0.076 $0.067 $0.06 $0.058 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0603 47kO 3% B25/50 4050K BTN06G473H4AF1T00 Bourns 1: $0.12 8,000In Stock New Product	Mfr. Part No. BTN06G473H4AF1T00 Mouser Part No 652-BTN06473H4AF1T00 New Product	Bourns	NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0603 47kO 3% B25/50 4050K Learn More about Bourns btn06g ntc thermistors	Datasheet	8,000In Stock	Cut Tape $0.12 $0.105 $0.092 $0.086 Reel $0.063 View $0.076 $0.067 $0.06 $0.058 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0805 100K B25/50 4250 BTN08G104H4EF1T00 Bourns 1: $0.14 2,783In Stock New Product	Mfr. Part No. BTN08G104H4EF1T00 Mouser Part No 652-TN08G104H4EF1T00 New Product	Bourns	NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0805 100K B25/50 4250 Learn More about Bourns btn08g smd ntc thermistors	Datasheet	2,783In Stock	Cut Tape $0.14 $0.128 $0.112 $0.105 Reel $0.077 View $0.092 $0.081 $0.073 $0.072 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
ESD Protection Diodes / TVS Diodes 8A 25pF max SLP0603P2x3L UCLAMP2001ZA.F Semtech 1: $0.60 21,000In Stock New Product	Mfr. Part No. UCLAMP2001ZA.F Mouser Part No 947-UCLAMP2001ZA New Product	Semtech	ESD Protection Diodes / TVS Diodes 8A 25pF max SLP0603P2x3L	Datasheet	21,000In Stock	Cut Tape $0.60 $0.42 $0.206 $0.172 View Reel $0.078 $0.119 $0.104 $0.099 $0.088 $0.078 MouseReel Available	Min.: 1 Mult.: 1 : 15,000
Circuit Breakers 8340-F410-P1M1-ALH0-5A E-T-A 1: $85.01 8In Stock 20Expected 01/01/2027 New At Mouser	Mfr. Part No. 8340-F410-P1M1-ALH0-5A Mouser Part No 457-4F410P1M1ALH05A New At Mouser	E-T-A	Circuit Breakers		8In Stock 20Expected 01/01/2027	$85.01 $70.52 $66.31 $55.26 View $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 $0.76 $0.587 Reel $0.473 View $0.498 $0.435 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 1.0 V, 0.17 pF, 15 kV, Bidirectional TVS SP4315-01WTG Littelfuse 1: $0.82 7,000In Stock 100Expected 21/12/2026 New Product	Mfr. Part No. SP4315-01WTG Mouser Part No 576-SP4315-01WTG New Product	Littelfuse	ESD Protection Diodes / TVS Diodes 1.0 V, 0.17 pF, 15 kV, Bidirectional TVS Learn More about Littelfuse sp4315 01wtg tvs diode arrays	Datasheet	7,000In Stock 100Expected 21/12/2026	Cut Tape $0.82 $0.511 $0.334 $0.252 View Reel $0.191 $0.229 $0.21 $0.205 $0.191 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0603 100kO 5% B25/50 4250K BTN06G104J4EH1T0A Bourns 1: $0.13 7,990In Stock New Product	Mfr. Part No. BTN06G104J4EH1T0A Mouser Part No 652-BTN06104J4EH1T0A New Product	Bourns	NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0603 100kO 5% B25/50 4250K Learn More about Bourns btn06g ntc thermistors	Datasheet	7,990In Stock	Cut Tape $0.13 $0.117 $0.102 $0.095 Reel $0.07 View $0.084 $0.074 $0.066 $0.065 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
ESD Protection Diodes / TVS Diodes 10V, Uni-directional, 20A-80A SVS1071P3UU.N Semtech 1: $0.69 8,000In Stock New Product	Mfr. Part No. SVS1071P3UU.N Mouser Part No 947-SVS1071P3UU.N New Product	Semtech	ESD Protection Diodes / TVS Diodes 10V, Uni-directional, 20A-80A		8,000In Stock	Cut Tape $0.69 $0.43 $0.275 $0.205 Reel $0.119 View $0.166 $0.143 $0.141 $0.113 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes UCLAMP3311T 3.3V SLP-10K UCLAMP3311T.TNT Semtech 1: $0.91 4,529In Stock New Product	Mfr. Part No. UCLAMP3311T.TNT Mouser Part No 947-UCLAMP3311T.TNT New Product	Semtech	ESD Protection Diodes / TVS Diodes UCLAMP3311T 3.3V SLP-10K	Datasheet	4,529In Stock	Cut Tape $0.91 $0.565 $0.369 $0.278 View Reel $0.178 $0.253 $0.232 $0.226 $0.178 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes 48 V, 1.6 pF, 30 kV, Bidirectional TVS AQ48ETH-02HTG Littelfuse 1: $1.66 2,100In Stock 100Expected 21/12/2026 New Product	Mfr. Part No. AQ48ETH-02HTG Mouser Part No 576-AQ48ETH-02HTG New Product	Littelfuse	ESD Protection Diodes / TVS Diodes 48 V, 1.6 pF, 30 kV, Bidirectional TVS Learn More about Littelfuse low capacitance esd spa diodes	Datasheet	2,100In Stock 100Expected 21/12/2026	Cut Tape $1.66 $1.04 $0.681 $0.526 Reel $0.424 View $0.446 $0.386 $0.372 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0603 47kO 2% B25/50 4050K BTN06G473G4AF1T00 Bourns 1: $0.12 7,997In Stock New Product	Mfr. Part No. BTN06G473G4AF1T00 Mouser Part No 652-BTN064734AF1T00 New Product	Bourns	NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0603 47kO 2% B25/50 4050K Learn More about Bourns btn06g ntc thermistors	Datasheet	7,997In Stock	Cut Tape $0.12 $0.105 $0.092 $0.086 Reel $0.063 View $0.076 $0.067 $0.06 $0.058 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
ESD Protection Diodes / TVS Diodes 15V, Uni-directional, 20A-80A SVS1571P3UU.N Semtech 1: $0.69 8,000In Stock New Product	Mfr. Part No. SVS1571P3UU.N Mouser Part No 947-SVS1571P3UU.N New Product	Semtech	ESD Protection Diodes / TVS Diodes 15V, Uni-directional, 20A-80A		8,000In Stock	Cut Tape $0.69 $0.43 $0.275 $0.205 Reel $0.119 View $0.166 $0.143 $0.141 $0.113 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
Varistors MOV 510V 10mm 2.5KA 10% Silcn Coatng Strt Leads AEC-Q200 511KH10-AT YAGEO 1: $0.57 2,560In Stock 400Expected 11/01/2027 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 400Expected 11/01/2027	$0.57 $0.353 $0.274 $0.261 View $0.255 $0.245 $0.199 $0.198	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0603 100kO 2% B25/50 4250K BTN06G104G4EF1T0A Bourns 1: $0.13 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 $0.13 $0.122 $0.107 $0.10 Reel $0.074 View $0.088 $0.078 $0.07 $0.068 MouseReel Available	Min.: 1 Mult.: 1 : 4,000

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Circuit Protection

Types of Circuit Protection