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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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Types of Circuit Protection

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.
ESD Protection Diodes / TVS Diodes 400W,10V5%,SMFBIDIRTVS 4SMF10CA-M3/I Vishay Semiconductors 1: €0.421 7,927In Stock New Product	Mfr. Part No. 4SMF10CA-M3/I Mouser Part No 78-4SMF10CA-M3/I New Product	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 400W,10V5%,SMFBIDIRTVS	Datasheet	7,927In Stock	Cut Tape €0.421 €0.291 €0.143 €0.119 Reel €0.06 View €0.083 €0.072 €0.069 €0.054	Min.: 1 Mult.: 1 : 10,000
NTC (Negative Temperature Coefficient) Thermistors NTC LUG M5 10k 1% G24 64mm A NTCALUG54A103F640A Vishay / BC Components 1: €2.66 323In Stock New Product	Mfr. Part No. NTCALUG54A103F640A Mouser Part No 594-NTCALUG54A103F6 New Product	Vishay / BC Components	NTC (Negative Temperature Coefficient) Thermistors NTC LUG M5 10k 1% G24 64mm A	Datasheet	323In Stock	€2.66 €2.00 €1.78 €1.69 View €1.64 €1.63 €1.42 €1.38 €1.33	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 350W,58V5%,SMFBIDIRTVS 4SMF58CAHM3/I Vishay Semiconductors 1: €0.507 6,969In Stock New Product	Mfr. Part No. 4SMF58CAHM3/I Mouser Part No 78-4SMF58CAHM3/I New Product	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 350W,58V5%,SMFBIDIRTVS	Datasheet	6,969In Stock	Cut Tape €0.507 €0.315 €0.201 €0.151 Reel €0.088 View €0.121 €0.105 €0.103 €0.083	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes TVS 6KA RATED 450V BI AXIAL AK8-450C-FB Littelfuse 1: €118.90 4In Stock 56Expected 15/12/2026 New Product	Mfr. Part No. AK8-450C-FB Mouser Part No 576-AK8-450C-FB New Product	Littelfuse	ESD Protection Diodes / TVS Diodes TVS 6KA RATED 450V BI AXIAL Learn More about Littelfuse ak8 fb tvs diodes	Datasheet	4In Stock 56Expected 15/12/2026	€118.90 €105.50	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 400W,20V5%,SMFBIDIRTVS 4SMF20CA-M3/I Vishay Semiconductors 1: €0.421 7,871In Stock New Product	Mfr. Part No. 4SMF20CA-M3/I Mouser Part No 78-4SMF20CA-M3/I New Product	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 400W,20V5%,SMFBIDIRTVS	Datasheet	7,871In Stock	Cut Tape €0.421 €0.291 €0.143 €0.119 Reel €0.06 View €0.083 €0.072 €0.069 €0.054	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes 400W,26V5%,SMFBIDIRTVS 4SMF26CA-M3/I Vishay Semiconductors 1: €0.43 19,234In Stock New Product	Mfr. Part No. 4SMF26CA-M3/I Mouser Part No 78-4SMF26CA-M3/I New Product	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 400W,26V5%,SMFBIDIRTVS	Datasheet	19,234In Stock	Cut Tape €0.43 €0.302 €0.148 €0.124 Reel €0.062 View €0.086 €0.075 €0.071 €0.056	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes 400W,24V5%,SMFBIDIRTVS 4SMF24CA-M3/I Vishay Semiconductors 1: €0.43 7,463In Stock 20,000Expected 25/11/2026 New Product	Mfr. Part No. 4SMF24CA-M3/I Mouser Part No 78-4SMF24CA-M3/I New Product	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 400W,24V5%,SMFBIDIRTVS	Datasheet	7,463In Stock 20,000Expected 25/11/2026	Cut Tape €0.43 €0.302 €0.148 €0.124 Reel €0.062 View €0.086 €0.075 €0.071 €0.056	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes TVS AXIAL KA RATED - 3KA 430V BI AK3-430C-A Littelfuse 1: €83.94 4In Stock 56Expected 15/12/2026 New Product	Mfr. Part No. AK3-430C-A Mouser Part No 576-AK3-430C-A New Product	Littelfuse	ESD Protection Diodes / TVS Diodes TVS AXIAL KA RATED - 3KA 430V BI Learn More about Littelfuse ak3 a tvs diodes	Datasheet	4In Stock 56Expected 15/12/2026	€83.94 €74.48 €73.72	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 400W,17V5%,SMFBIDIRTVS 4SMF17CA-M3/I Vishay Semiconductors 1: €0.421 7,840In Stock New Product	Mfr. Part No. 4SMF17CA-M3/I Mouser Part No 78-4SMF17CA-M3/I New Product	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 400W,17V5%,SMFBIDIRTVS	Datasheet	7,840In Stock	Cut Tape €0.421 €0.291 €0.143 €0.119 Reel €0.06 View €0.083 €0.072 €0.069 €0.054	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes 400W,18V5%,SMFBIDIRTVS 4SMF18CA-M3/I Vishay Semiconductors 1: €0.421 7,632In Stock New Product	Mfr. Part No. 4SMF18CA-M3/I Mouser Part No 78-4SMF18CA-M3/I New Product	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 400W,18V5%,SMFBIDIRTVS	Datasheet	7,632In Stock	Cut Tape €0.421 €0.291 €0.143 €0.119 Reel €0.06 View €0.083 €0.072 €0.069 €0.054	Min.: 1 Mult.: 1 : 10,000
Industrial Surge Protectors SPD 120V Single Phase 36kA SDSA05 Square D 1: €94.60 7In Stock New Product	Mfr. Part No. SDSA05 Mouser Part No 996-SDSA05 New Product	Square D	Industrial Surge Protectors SPD 120V Single Phase 36kA Learn More about Square D sdsa surge protective devices	Datasheet	7In Stock	€94.60	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes Automotive High Surge ESD - DFN1006-2L,Bi,5V PEC3205M1Q-AU_R1_005A1 Panjit 1: €0.095 17,969In Stock New Product	Mfr. Part No. PEC3205M1Q-AU_R1_005A1 Mouser Part No 241-PEC3205M1QAUR15A New Product	Panjit	ESD Protection Diodes / TVS Diodes Automotive High Surge ESD - DFN1006-2L,Bi,5V	Datasheet	17,969In Stock	Cut Tape €0.095 €0.066 €0.033 €0.028 View Reel €0.015 €0.021 €0.018 €0.015 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes 400W,16V5%,SMFBIDIRTVS 4SMF16CA-M3/I Vishay Semiconductors 1: €0.421 7,916In Stock New Product	Mfr. Part No. 4SMF16CA-M3/I Mouser Part No 78-4SMF16CA-M3/I New Product	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 400W,16V5%,SMFBIDIRTVS	Datasheet	7,916In Stock	Cut Tape €0.421 €0.291 €0.143 €0.119 Reel €0.06 View €0.083 €0.072 €0.069 €0.054	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes TVS 5KW 18V 5%UNI DO-214AB TR13 RoHS Littelfuse 5.0SMDJ18A-E 5.0SMDJ18A-E Littelfuse 1: €2.41 3,000In Stock New Product	Mfr. Part No. 5.0SMDJ18A-E Mouser Part No 576-5.0SMDJ18AE New Product	Littelfuse	ESD Protection Diodes / TVS Diodes TVS 5KW 18V 5%UNI DO-214AB TR13 RoHS	Datasheet	3,000In Stock	Cut Tape €2.41 €1.55 €1.26 €1.06 €0.86 Reel €0.731	Min.: 1 Mult.: 1 : 3,000
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0603 10kO 3% B25/50 3380K BTN06G103H3HF1T0A Bourns 1: €0.112 8,000In Stock New Product	Mfr. Part No. BTN06G103H3HF1T0A Mouser Part No 652-BTN06103H3HF1T0A New Product	Bourns	NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0603 10kO 3% B25/50 3380K Learn More about Bourns btn06g ntc thermistors	Datasheet	8,000In Stock	Cut Tape €0.112 €0.099 €0.087 €0.071 Reel €0.053 View €0.063 €0.059 €0.051 €0.049 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0603 47kO 2% B25/50 4050K BTN06G473G4AF1T00 Bourns 1: €0.112 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 €0.112 €0.101 €0.089 €0.073 Reel €0.055 View €0.065 €0.061 €0.052 €0.051 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
ESD Protection Diodes / TVS Diodes 15V, Uni-directional, 20A-80A SVS1571P3UU.N Semtech 1: €0.464 7,000In 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		7,000In Stock	Cut Tape €0.464 €0.286 €0.181 €0.145 Reel €0.089 View €0.122 €0.103 €0.095 €0.083 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL DIN 315A ESR3XLDB0315XI Littelfuse 1: €498.58 3In Stock New Product	Mfr. Part No. ESR3XLDB0315XI Mouser Part No 576-ESR3XLDB0315XI New Product	Littelfuse	Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL DIN 315A Learn More about Littelfuse esr high speed square body fuses	Datasheet	3In Stock	€498.58 €409.39 €372.54	Min.: 1 Mult.: 1
Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 400A ESR3XLUB0400XI Littelfuse 1: €512.90 3In Stock New Product	Mfr. Part No. ESR3XLUB0400XI Mouser Part No 576-ESR3XLUB0400XI New Product	Littelfuse	Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 400A Learn More about Littelfuse esr high speed square body fuses	Datasheet	3In Stock	€512.90 €421.15 €383.35 Quote Quote	Min.: 1 Mult.: 1
Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 500A ESR3XLUB0500XI Littelfuse 1: €523.31 3In Stock New Product	Mfr. Part No. ESR3XLUB0500XI Mouser Part No 576-ESR3XLUB0500XI New Product	Littelfuse	Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 500A Learn More about Littelfuse esr high speed square body fuses	Datasheet	3In Stock	€523.31 €445.42 €399.29	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes "20 V, 50pF, 5A," SP1120-01WTG Littelfuse 1: €0.507 8,583In Stock New Product	Mfr. Part No. SP1120-01WTG Mouser Part No 576-SP1120-01WTG New Product	Littelfuse	ESD Protection Diodes / TVS Diodes "20 V, 50pF, 5A," Learn More about Littelfuse sp1120 01wtg tvs diodes		8,583In Stock	Cut Tape €0.507 €0.226 €0.199 €0.15 View Reel €0.084 €0.146 €0.137 €0.135 €0.084	Min.: 1 Mult.: 1 : 10,000
Surface Mount Fuses SFT 1206 63V 0.5A Sn Tape&Reel SFT120663VA500TT Vishay / Sfernice 1: €0.533 3,493In Stock New Product	Mfr. Part No. SFT120663VA500TT Mouser Part No 594-SFT120663VA500TT New Product	Vishay / Sfernice	Surface Mount Fuses SFT 1206 63V 0.5A Sn Tape&Reel Learn More about Vishay / Sfernice vishay sft sf2t time lag acting thin film fuses	Datasheet	3,493In Stock	Cut Tape €0.533 €0.423 €0.356 €0.313 View Reel €0.198 €0.281 €0.26 €0.239 €0.22 €0.198 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0603 10kO 5% B25/50 3380K BTN06G103J3HH1T0A Bourns 1: €0.103 7,850In Stock New Product	Mfr. Part No. BTN06G103J3HH1T0A Mouser Part No 652-BTN06103J3HH1T0A New Product	Bourns	NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0603 10kO 5% B25/50 3380K Learn More about Bourns btn06g ntc thermistors	Datasheet	7,850In Stock	Cut Tape €0.103 €0.095 €0.084 €0.069 Reel €0.052 View €0.06 €0.058 €0.049 €0.047 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0603 47kO 1% B25/50 4050K BTN06G473F4AF1T00 Bourns 1: €0.112 8,000In Stock New Product	Mfr. Part No. BTN06G473F4AF1T00 Mouser Part No 652-BTN06473F4AF1T00 New Product	Bourns	NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0603 47kO 1% B25/50 4050K Learn More about Bourns btn06g ntc thermistors	Datasheet	8,000In Stock	Cut Tape €0.112 €0.101 €0.089 €0.073 Reel €0.055 View €0.065 €0.061 €0.052 €0.051 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0805 10K B25/85 3435 BTN08G103F3JF2T00 Bourns 1: €0.146 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 €0.146 €0.127 €0.112 €0.089 Reel €0.067 View €0.078 €0.075 €0.065 €0.062 MouseReel Available	Min.: 1 Mult.: 1 : 4,000

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