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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 (IDR) Filter the results in the table by unit price based on your quantity.	Qty.
ESD Protection Diodes / TVS Diodes 1.0 V, 0.17 pF, 15 kV, Bidirectional TVS SP4315-01WTG Littelfuse 1: Rp15.043,72 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 Rp15.043,72 Rp9.374,81 Rp6.127,56 Rp4.623,19 View Reel Rp3.504,09 Rp4.201,23 Rp3.852,66 Rp3.760,93 Rp3.504,09 MouseReel Available	Min.: 1 Mult.: 1 : 10.000
ESD Protection Diodes / TVS Diodes 10V, Uni-directional, 20A-80A SVS1071P3UU.N Semtech 1: Rp12.658,74 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 Rp12.658,74 Rp7.888,78 Rp5.045,15 Rp3.760,93 Reel Rp2.183,17 View Rp3.045,44 Rp2.623,48 Rp2.586,79 Rp2.073,10 MouseReel Available	Min.: 1 Mult.: 1 : 10.000
ESD Protection Diodes / TVS Diodes UCLAMP3311T 3.3V SLP-10K UCLAMP3311T.TNT Semtech 1: Rp16.694,86 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 Rp16.694,86 Rp10.365,49 Rp6.769,67 Rp5.100,19 View Reel Rp3.265,59 Rp4.641,54 Rp4.256,27 Rp4.146,20 Rp3.265,59 MouseReel Available	Min.: 1 Mult.: 1 : 10.000
Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL DIN 315A ESR3XLDB0315XI Littelfuse 1: Rp10.635.910,04 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	Rp10.635.910,04 Rp8.733.246,38 Rp7.947.303,74	Min.: 1 Mult.: 1
Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 400A ESR3XLUB0400XI Littelfuse 1: Rp10.941.370,94 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	Rp10.941.370,94 Rp8.984.219,66 Rp8.177.912,96 Quote Quote	Min.: 1 Mult.: 1
Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 500A ESR3XLUB0500XI Littelfuse 1: Rp11.163.541,00 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	Rp11.163.541,00 Rp9.501.943,78 Rp8.517.864,34	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 12V, Uni-directional, 20A-80A SVS1271P3UU.N Semtech 1: Rp12.658,74 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 Rp12.658,74 Rp7.888,78 Rp5.045,15 Rp3.760,93 Reel Rp2.183,17 View Rp3.045,44 Rp2.623,48 Rp2.586,79 Rp2.073,10 MouseReel Available	Min.: 1 Mult.: 1 : 10.000
ESD Protection Diodes / TVS Diodes 36V, Uni-directional, 20A-80A SVS3671P3UU.N Semtech 1: Rp12.658,74 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 Rp12.658,74 Rp7.888,78 Rp5.045,15 Rp3.760,93 Reel Rp2.183,17 View Rp3.045,44 Rp2.623,48 Rp2.586,79 Rp2.073,10 MouseReel Available	Min.: 1 Mult.: 1 : 10.000
Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 250A ESR3XLUB0250XI Littelfuse 1: Rp9.584.317,32 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	Rp9.584.317,32 Rp7.869.700,16 Rp7.161.544,56	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 7V & 12V 75pF 20A SOT23-3L SC712-02HTG Littelfuse 1: Rp25.684,40 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 Rp25.684,40 Rp16.144,48 Rp10.567,30 Rp8.163,97 Reel Rp6.586,21 View Rp6.934,79 Rp5.980,80 Rp5.778,99 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes AUTO TVS TO-263 LOAD DUMP 33A SLD263-33A Littelfuse 1: Rp93.564,60 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 Rp93.564,60 Rp61.642,56 Rp50.268,04 Rp42.562,72 Reel Rp35.591,24 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: Rp54.487,62 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 Rp54.487,62 Rp35.224,32 Rp28.619,76 Rp24.216,72 Rp19.079,84 Reel Rp16.181,17 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
ESD Protection Diodes / TVS Diodes 8A 25pF max SLP0603P2x3L UCLAMP2001ZA.F Semtech 1: Rp11.007,60 20.800In 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	20.800In Stock	Cut Tape Rp11.007,60 Rp7.705,32 Rp3.779,28 Rp3.155,51 View Reel Rp1.430,99 Rp2.183,17 Rp1.907,98 Rp1.816,25 Rp1.614,45 Rp1.430,99 MouseReel Available	Min.: 1 Mult.: 1 : 15.000
Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 10MHz - 1GHz, DC Block, 1.5kW, 3.5mJ, 20kA, Blocking Cap, Hole Mount, Use IS-B50LN-C2-ME IS-B50LN-C0-ME PolyPhaser 1: Rp2.052.733,94 307In Stock New Product	Mfr. Part No. IS-B50LN-C0-ME Mouser Part No 44-IS-B50LN-C0-ME New Product	PolyPhaser	Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 10MHz - 1GHz, DC Block, 1.5kW, 3.5mJ, 20kA, Blocking Cap, Hole Mount, Use IS-B50LN-C2-ME Learn More about PolyPhaser is b50 surge protectors	Datasheet	307In Stock	Rp2.052.733,94 Rp1.947.060,98	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Bracket Up, Hole Mount VHF50HN-B PolyPhaser 1: Rp3.000.304,84 127In Stock 9On Order New Product	Mfr. Part No. VHF50HN-B Mouser Part No 44-VHF50HN-B New Product	PolyPhaser	Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Bracket Up, Hole Mount Learn More about PolyPhaser 100mhz 512mhz surge protectors	Datasheet	127In Stock 9On Order	Rp3.000.304,84 Rp2.845.831,52	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Bracket Down, Hole Mount VHF50HN PolyPhaser 1: Rp2.937.194,60 364In Stock 64Expected 30/11/2026 New Product	Mfr. Part No. VHF50HN Mouser Part No 44-VHF50HN New Product	PolyPhaser	Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Bracket Down, Hole Mount Learn More about PolyPhaser 100mhz 512mhz surge protectors	Datasheet	364In Stock 64Expected 30/11/2026	Rp2.937.194,60 Rp2.785.840,10	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, DC - 6GHz, 90W, IP67, 60 V Max., 5mJ, 20kA, Gas Discharge Tube GT-NFF-AL PolyPhaser 1: Rp1.439.427,16 391In Stock 100Expected 16/11/2026 New Product	Mfr. Part No. GT-NFF-AL Mouser Part No 44-GT-NFF-AL New Product	PolyPhaser	Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, DC - 6GHz, 90W, IP67, 60 V Max., 5mJ, 20kA, Gas Discharge Tube Learn More about PolyPhaser dc 7ghz rf coaxial surge protectors	Datasheet	391In Stock 100Expected 16/11/2026	Rp1.439.427,16 Rp1.362.740,88	Min.: 1 Mult.: 1
Circuit Breakers LG 3 POLE 150KA FRAME ONLY LGU3630NN Eaton Electrical 1: Rp274.624.943,20 1In Stock New Product	Mfr. Part No. LGU3630NN Mouser Part No 504-LGU3630NN New Product	Eaton Electrical	Circuit Breakers LG 3 POLE 150KA FRAME ONLY	Datasheet	1In Stock	Rp274.624.943,20	Min.: 1 Mult.: 1
Connectorised Surge Protectors Citel P8AX09-N/FF/HE P8AX09-N/FF/HE Citel 1: Rp2.837.208,90 3In Stock New At Mouser	Mfr. Part No. P8AX09-N/FF/HE Mouser Part No 703-P8AX09-N/FF/HE New At Mouser	Citel	Connectorised Surge Protectors	Datasheet	3In Stock	Rp2.837.208,90 Rp2.352.507,58 Rp2.220.049,46 Rp1.697.738,84	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors ESAPP-ESA PROBE-RTD PT1000, 2000mm 20016752-02 TE Connectivity 1: Rp26.506.667,72 14In Stock New Product	Mfr. Part No. 20016752-02 Mouser Part No 571-20016752-02 New Product	TE Connectivity	NTC (Negative Temperature Coefficient) Thermistors ESAPP-ESA PROBE-RTD PT1000, 2000mm Learn More about TE Connectivity te surface mount temperature sensors	Datasheet	14In Stock	Rp26.506.667,72 Rp24.233.231,40 View Quote	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes TVS SURF MT DO214AA - SMBJ33A 3K T&R Littelfuse SMBJ33A-E SMBJ33A-E Littelfuse 1: Rp10.457,22 2.372In Stock New Product	Mfr. Part No. SMBJ33A-E Mouser Part No 576-SMBJ33AE New Product	Littelfuse	ESD Protection Diodes / TVS Diodes TVS SURF MT DO214AA - SMBJ33A 3K T&R	Datasheet	2.372In Stock	Cut Tape Rp10.457,22 Rp4.935,07 Rp4.164,54 Rp3.100,47 Reel Rp1.669,49 View Rp2.788,59 Rp1.632,79 Rp1.449,33 Rp1.394,30	Min.: 1 Mult.: 1 : 3.000
Circuit Breaker Accessories NQB L103 Eaton Electrical 69D2660G11 69D2660G11 Eaton Electrical 1: Rp165.478.901,94 2In Stock New Product	Mfr. Part No. 69D2660G11 Mouser Part No 504-69D2660G11 New Product	Eaton Electrical	Circuit Breaker Accessories NQB L103		2In Stock	Rp165.478.901,94	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, DC - 3.0GHz, DC Pass, 60V, 2000W, IP67, 20kA, Gas Tube, Bracket Included 103-0324A-A PolyPhaser 1: Rp2.021.178,82 83In Stock New Product	Mfr. Part No. 103-0324A-A Mouser Part No 44-103-0324A-A New Product	PolyPhaser	Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, DC - 3.0GHz, DC Pass, 60V, 2000W, IP67, 20kA, Gas Tube, Bracket Included	Datasheet	83In Stock	Rp2.021.178,82 Rp1.916.973,54	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 2GHz - 6GHz, DC Block, 10W, IP67, .5uJ, 10kA, Filter AL-LSXM PolyPhaser 1: Rp1.406.771,28 23In Stock 26On Order New Product	Mfr. Part No. AL-LSXM Mouser Part No 44-AL-LSXM New Product	PolyPhaser	Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 2GHz - 6GHz, DC Block, 10W, IP67, .5uJ, 10kA, Filter Learn More about PolyPhaser 2ghz 6ghz surge protectors	Datasheet	23In Stock 26On Order On Order Ship Dates Mfr. No: AL-LSXM Stock: 23 Can Dispatch Immediately On Order: 12 Expected 20/11/2026 14 Expected 30/11/2026 Factory Lead Time: 5 Weeks	Rp1.406.771,28 Rp1.331.736,14	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 36 V Max., 1.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount CGXZ+36NFNF-A PolyPhaser 1: Rp3.126.708,78 43In Stock New Product	Mfr. Part No. CGXZ+36NFNF-A Mouser Part No 44-CGXZ+36NFNF-A New Product	PolyPhaser	Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 36 V Max., 1.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount Learn More about PolyPhaser 400mhz 2 5ghz surge protectors	Datasheet	43In Stock	Rp3.126.708,78 Rp2.965.630,90	Min.: 1 Mult.: 1

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Circuit Protection

Types of Circuit Protection