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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 (DKK) Filter the results in the table by unit price based on your quantity.	Qty.
ESD Protection Diodes / TVS Diodes TVS 1KA RATED 430V BI AXIAL AK1-430C-A Littelfuse 1: 235,14 kr. 61In Stock New Product	Mfr. Part No. AK1-430C-A Mouser Part No 576-AK1-430C-A New Product	Littelfuse	ESD Protection Diodes / TVS Diodes TVS 1KA RATED 430V BI AXIAL Learn More about Littelfuse ak1 a tvs diodes	Datasheet	61In Stock	235,14 kr. 168,45 kr. 161,73 kr. 161,66 kr.	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes TVS 6KA RATED 700V BI AXIAL AK6-700C-FL Littelfuse 1: 876,55 kr. 57In Stock New Product	Mfr. Part No. AK6-700C-FL Mouser Part No 576-AK6-700C-FL New Product	Littelfuse	ESD Protection Diodes / TVS Diodes TVS 6KA RATED 700V BI AXIAL Learn More about Littelfuse ak fl tvs diodes	Datasheet	57In Stock	876,55 kr. 777,78 kr.	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC LUG M5 10k 1% G24 64mm A Vishay / BC Components NTCALUG54A103F640A NTCALUG54A103F640A Vishay / BC Components 1: 19,84 kr. 266In 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	266In Stock	19,84 kr. 14,92 kr. 13,28 kr. 12,61 kr. View 12,23 kr. 12,16 kr. 10,52 kr. 10,29 kr. 9,92 kr.	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 350W,58V5%,SMFBIDIRTVS Vishay Semiconductors 4SMF58CAHM3/I 4SMF58CAHM3/I Vishay Semiconductors 1: 3,78 kr. 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 3,78 kr. 2,35 kr. 1,50 kr. 1,13 kr. Reel 0,656 kr. View 0,903 kr. 0,783 kr. 0,768 kr. 0,619 kr.	Min.: 1 Mult.: 1 : 10.000
ESD Protection Diodes / TVS Diodes TVS AXIAL KA RATED - 3KA 430V BI AK3-430C-A Littelfuse 1: 575,54 kr. 4In Stock 56Expected 21/12/2026 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 21/12/2026	575,54 kr. 549,95 kr.	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 400W,17V5%,SMFBIDIRTVS Vishay Semiconductors 4SMF17CA-M3/I 4SMF17CA-M3/I Vishay Semiconductors 1: 3,14 kr. 7.816In 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	7.816In Stock	Cut Tape 3,14 kr. 2,17 kr. 1,07 kr. 0,888 kr. Reel 0,448 kr. View 0,619 kr. 0,537 kr. 0,515 kr. 0,403 kr.	Min.: 1 Mult.: 1 : 10.000
ESD Protection Diodes / TVS Diodes 400W,18V5%,SMFBIDIRTVS Vishay Semiconductors 4SMF18CA-M3/I 4SMF18CA-M3/I Vishay Semiconductors 1: 3,14 kr. 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 3,14 kr. 2,17 kr. 1,07 kr. 0,888 kr. Reel 0,448 kr. View 0,619 kr. 0,537 kr. 0,515 kr. 0,403 kr.	Min.: 1 Mult.: 1 : 10.000
Industrial Surge Protectors SPD 120V Single Phase 36kA SDSA05 Square D 1: 705,72 kr. 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	705,72 kr.	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes Automotive High Surge ESD - DFN1006-2L,Bi,5V PEC3205M1Q-AU_R1_005A1 Panjit 1: 0,709 kr. 17.959In 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	17.959In Stock	Cut Tape 0,709 kr. 0,492 kr. 0,246 kr. 0,209 kr. View Reel 0,112 kr. 0,157 kr. 0,134 kr. 0,112 kr. MouseReel Available	Min.: 1 Mult.: 1 : 10.000
ESD Protection Diodes / TVS Diodes 400W,16V5%,SMFBIDIRTVS Vishay Semiconductors 4SMF16CA-M3/I 4SMF16CA-M3/I Vishay Semiconductors 1: 3,14 kr. 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 3,14 kr. 2,17 kr. 1,07 kr. 0,888 kr. Reel 0,448 kr. View 0,619 kr. 0,537 kr. 0,515 kr. 0,403 kr.	Min.: 1 Mult.: 1 : 10.000
ESD Protection Diodes / TVS Diodes 400W,24V5%,SMFBIDIRTVS Vishay Semiconductors 4SMF24CA-M3/I 4SMF24CA-M3/I Vishay Semiconductors 1: 3,21 kr. 7.463In Stock 20.000On Order 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 20.000On Order On Order Ship Dates Mfr. No: 4SMF24CA-M3/I Stock: 7.463 Can Dispatch Immediately On Order: 10.000 Expected 09/11/2026 10.000 Expected 25/11/2026 Factory Lead Time: 10 Weeks	Cut Tape 3,21 kr. 2,25 kr. 1,10 kr. 0,925 kr. Reel 0,463 kr. View 0,642 kr. 0,56 kr. 0,53 kr. 0,418 kr.	Min.: 1 Mult.: 1 : 10.000
ESD Protection Diodes / TVS Diodes Automotive High Surge ESD - SOT-23,Uni,5V PE4305C2A-AU_R1_007A1 Panjit 1: 2,82 kr. 5.396In Stock New Product	Mfr. Part No. PE4305C2A-AU_R1_007A1 Mouser Part No 241-PE4305C2AAUR17A1 New Product	Panjit	ESD Protection Diodes / TVS Diodes Automotive High Surge ESD - SOT-23,Uni,5V	Datasheet	5.396In Stock	Cut Tape 2,82 kr. 1,94 kr. 0,947 kr. 0,798 kr. Reel 0,477 kr. View 0,552 kr. 0,448 kr. 0,395 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 400W,10V5%,SMFBIDIRTVS Vishay Semiconductors 4SMF10CA-M3/I 4SMF10CA-M3/I Vishay Semiconductors 1: 3,14 kr. 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 3,14 kr. 2,17 kr. 1,07 kr. 0,888 kr. Reel 0,448 kr. View 0,619 kr. 0,537 kr. 0,515 kr. 0,403 kr.	Min.: 1 Mult.: 1 : 10.000
ESD Protection Diodes / TVS Diodes TVS 6KA RATED 450V BI AXIAL AK8-450C-FB Littelfuse 1: 870,96 kr. 4In Stock 56Expected 08/02/2027 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 08/02/2027	870,96 kr. 779,05 kr.	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 400W,20V5%,SMFBIDIRTVS Vishay Semiconductors 4SMF20CA-M3/I 4SMF20CA-M3/I Vishay Semiconductors 1: 3,14 kr. 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 3,14 kr. 2,17 kr. 1,07 kr. 0,888 kr. Reel 0,448 kr. View 0,619 kr. 0,537 kr. 0,515 kr. 0,403 kr.	Min.: 1 Mult.: 1 : 10.000
ESD Protection Diodes / TVS Diodes 400W,26V5%,SMFBIDIRTVS Vishay Semiconductors 4SMF26CA-M3/I 4SMF26CA-M3/I Vishay Semiconductors 1: 3,21 kr. 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 3,21 kr. 2,25 kr. 1,10 kr. 0,925 kr. Reel 0,463 kr. View 0,642 kr. 0,56 kr. 0,53 kr. 0,418 kr.	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: 17,98 kr. 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 17,98 kr. 11,56 kr. 9,40 kr. 7,91 kr. 6,42 kr. Reel 5,45 kr.	Min.: 1 Mult.: 1 : 3.000
Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL DIN 315A ESR3XLDB0315XI Littelfuse 1: 3.719,41 kr. 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	3.719,41 kr. 3.054,05 kr. 2.779,15 kr.	Min.: 1 Mult.: 1
Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 400A ESR3XLUB0400XI Littelfuse 1: 3.826,23 kr. 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	3.826,23 kr. 3.141,78 kr. 2.859,79 kr. Quote Quote	Min.: 1 Mult.: 1
Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 500A ESR3XLUB0500XI Littelfuse 1: 3.903,89 kr. 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	3.903,89 kr. 3.322,83 kr. 2.978,70 kr.	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0603 10kO 5% B25/50 3380K BTN06G103J3HH1T0A Bourns 1: 0,709 kr. 7.840In 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	7.840In Stock	Cut Tape 0,709 kr. 0,642 kr. 0,56 kr. 0,522 kr. Reel 0,38 kr. View 0,455 kr. 0,403 kr. 0,358 kr. 0,351 kr. MouseReel Available	Min.: 1 Mult.: 1 : 4.000
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0603 47kO 1% B25/50 4050K BTN06G473F4AF1T00 Bourns 1: 0,768 kr. 7.975In 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	7.975In Stock	Cut Tape 0,768 kr. 0,671 kr. 0,589 kr. 0,552 kr. Reel 0,403 kr. View 0,485 kr. 0,433 kr. 0,388 kr. 0,373 kr. MouseReel Available	Min.: 1 Mult.: 1 : 4.000
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0805 10K B25/85 3435 BTN08G103F3JF2T00 Bourns 1: 1,09 kr. 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 1,09 kr. 0,947 kr. 0,836 kr. 0,664 kr. Reel 0,50 kr. View 0,582 kr. 0,56 kr. 0,485 kr. 0,463 kr. MouseReel Available	Min.: 1 Mult.: 1 : 4.000
NTC (Negative Temperature Coefficient) Thermistors NTC SMD 0805 47K B25/85 3950 BTN08G473H3UF2T00 Bourns 1: 0,895 kr. 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 0,895 kr. 0,821 kr. 0,716 kr. 0,671 kr. Reel 0,492 kr. View 0,589 kr. 0,522 kr. 0,47 kr. 0,463 kr. MouseReel Available	Min.: 1 Mult.: 1 : 4.000
ESD Protection Diodes / TVS Diodes 12V, Uni-directional, 20A-80A SVS1271P3UU.N Semtech 1: 4,42 kr. 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 4,42 kr. 2,76 kr. 1,77 kr. 1,31 kr. Reel 0,761 kr. View 1,07 kr. 0,918 kr. 0,903 kr. 0,724 kr. MouseReel Available	Min.: 1 Mult.: 1 : 10.000

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Circuit Protection

Types of Circuit Protection