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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 (CHF) Filter the results in the table by unit price based on your quantity.	Qty.
ESD Protection Diodes / TVS Diodes 400W,17V5%,SMFBIDIRTVS Vishay Semiconductors 4SMF17CA-M3/I 4SMF17CA-M3/I Vishay Semiconductors 1: 0.394 CHF 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 0.394 CHF 0.272 CHF 0.134 CHF 0.111 CHF Reel 0.056 CHF View 0.078 CHF 0.067 CHF 0.065 CHF 0.051 CHF	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: 0.394 CHF 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 0.394 CHF 0.272 CHF 0.134 CHF 0.111 CHF Reel 0.056 CHF View 0.078 CHF 0.067 CHF 0.065 CHF 0.051 CHF	Min.: 1 Mult.: 1 : 10 000
Industrial Surge Protectors SPD 120V Single Phase 36kA SDSA05 Square D 1: 88.55 CHF 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	88.55 CHF	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes Automotive High Surge ESD - SOT-23,Uni,5V PE4305C2A-AU_R1_007A1 Panjit 1: 0.354 CHF 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 0.354 CHF 0.243 CHF 0.119 CHF 0.10 CHF Reel 0.06 CHF View 0.069 CHF 0.056 CHF 0.05 CHF 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: 0.394 CHF 7 919In 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 919In Stock	Cut Tape 0.394 CHF 0.272 CHF 0.134 CHF 0.111 CHF Reel 0.056 CHF View 0.078 CHF 0.067 CHF 0.065 CHF 0.051 CHF	Min.: 1 Mult.: 1 : 10 000
ESD Protection Diodes / TVS Diodes TVS 6KA RATED 450V BI AXIAL AK8-450C-FB Littelfuse 1: 109.28 CHF 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	109.28 CHF 97.75 CHF	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: 2.49 CHF 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	2.49 CHF 1.87 CHF 1.67 CHF 1.58 CHF View 1.54 CHF 1.53 CHF 1.32 CHF 1.29 CHF 1.24 CHF	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 350W,58V5%,SMFBIDIRTVS Vishay Semiconductors 4SMF58CAHM3/I 4SMF58CAHM3/I Vishay Semiconductors 1: 0.475 CHF 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 0.475 CHF 0.295 CHF 0.188 CHF 0.141 CHF Reel 0.082 CHF View 0.113 CHF 0.098 CHF 0.096 CHF 0.078 CHF	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: 0.402 CHF 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 0.402 CHF 0.283 CHF 0.139 CHF 0.116 CHF Reel 0.058 CHF View 0.08 CHF 0.07 CHF 0.066 CHF 0.052 CHF	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: 0.394 CHF 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 0.394 CHF 0.272 CHF 0.134 CHF 0.111 CHF Reel 0.056 CHF View 0.078 CHF 0.067 CHF 0.065 CHF 0.051 CHF	Min.: 1 Mult.: 1 : 10 000
ESD Protection Diodes / TVS Diodes 400W,20V5%,SMFBIDIRTVS Vishay Semiconductors 4SMF20CA-M3/I 4SMF20CA-M3/I Vishay Semiconductors 1: 0.394 CHF 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 0.394 CHF 0.272 CHF 0.134 CHF 0.111 CHF Reel 0.056 CHF View 0.078 CHF 0.067 CHF 0.065 CHF 0.051 CHF	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: 0.402 CHF 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 0.402 CHF 0.283 CHF 0.139 CHF 0.116 CHF Reel 0.058 CHF View 0.08 CHF 0.07 CHF 0.066 CHF 0.052 CHF	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: 2.26 CHF 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 2.26 CHF 1.45 CHF 1.18 CHF 0.992 CHF 0.805 CHF Reel 0.684 CHF	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 5V, 6A, SOD882 SC1003-01ETG Littelfuse 1: 0.636 CHF 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 0.636 CHF 0.40 CHF 0.256 CHF 0.191 CHF Reel 0.111 CHF View 0.154 CHF 0.133 CHF 0.131 CHF 0.105 CHF MouseReel Available	Min.: 1 Mult.: 1 : 10 000
Varistors 20mm Radial Disc-Kinked Leads,Bulk MOV-20D182KKC Bourns 1: 2.74 CHF 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	2.74 CHF 1.74 CHF 1.35 CHF 1.25 CHF View 1.10 CHF 0.926 CHF 0.901 CHF	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 18V, Uni-directional, 20A-80A SVS1871P3UU.N Semtech 1: 0.555 CHF 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 0.555 CHF 0.346 CHF 0.222 CHF 0.165 CHF Reel 0.095 CHF View 0.134 CHF 0.115 CHF 0.113 CHF 0.091 CHF 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: 1.34 CHF 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 1.34 CHF 0.837 CHF 0.548 CHF 0.423 CHF Reel 0.342 CHF View 0.359 CHF 0.311 CHF 0.30 CHF MouseReel Available	Min.: 1 Mult.: 1 : 3 000
ESD Protection Diodes / TVS Diodes 15V, Uni-directional, 20A-80A SVS1571P3UU.N Semtech 1: 0.555 CHF 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 0.555 CHF 0.346 CHF 0.222 CHF 0.165 CHF Reel 0.095 CHF View 0.134 CHF 0.115 CHF 0.113 CHF 0.091 CHF 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: 0.459 CHF 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	0.459 CHF 0.285 CHF 0.221 CHF 0.21 CHF View 0.205 CHF 0.197 CHF 0.16 CHF 0.159 CHF	Min.: 1 Mult.: 1
Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL DIN 315A ESR3XLDB0315XI Littelfuse 1: 466.67 CHF 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	466.67 CHF 383.19 CHF 348.70 CHF	Min.: 1 Mult.: 1
Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 400A ESR3XLUB0400XI Littelfuse 1: 480.07 CHF 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	480.07 CHF 394.20 CHF 358.82 CHF Quote Quote	Min.: 1 Mult.: 1
Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 500A ESR3XLUB0500XI Littelfuse 1: 489.82 CHF 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	489.82 CHF 416.91 CHF 373.74 CHF	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 12V, Uni-directional, 20A-80A SVS1271P3UU.N Semtech 1: 0.555 CHF 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 0.555 CHF 0.346 CHF 0.222 CHF 0.165 CHF Reel 0.095 CHF View 0.134 CHF 0.115 CHF 0.113 CHF 0.091 CHF MouseReel Available	Min.: 1 Mult.: 1 : 10 000
ESD Protection Diodes / TVS Diodes 36V, Uni-directional, 20A-80A SVS3671P3UU.N Semtech 1: 0.555 CHF 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 0.555 CHF 0.346 CHF 0.222 CHF 0.165 CHF Reel 0.095 CHF View 0.134 CHF 0.115 CHF 0.113 CHF 0.091 CHF MouseReel Available	Min.: 1 Mult.: 1 : 10 000
Circuit Breakers 8340-F410-P1M1-ALH0-5A E-T-A 1: 68.43 CHF 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	68.43 CHF 56.77 CHF 53.38 CHF 44.48 CHF View 41.53 CHF 41.52 CHF Quote	Min.: 1 Mult.: 1

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Circuit Protection

Types of Circuit Protection