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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 (EUR) Filter the results in the table by unit price based on your quantity.	Qty.
Surface Mount Fuses 20A 250V FAST ACTING SF-3812F2000T-2 Bourns 1: €3.27 9,397In Stock	Mfr. Part No. SF-3812F2000T-2 Mouser Part No 652-SF-3812F2000T-2	Bourns	Surface Mount Fuses 20A 250V FAST ACTING Learn More about Bourns sf 3812f t smd fuses	Datasheet	9,397In Stock	Cut Tape €3.27 €2.81 €2.14 €1.95 Reel €1.62 View €1.76 €1.63 €1.62 €1.54	Min.: 1 Mult.: 1 : 2,500
ESD Protection Diodes / TVS Diodes 22volts 5uA 84.4 Amps Bi-Dir SMLJ22CA Bourns 1: €1.59 33,738In Stock	Mfr. Part No. SMLJ22CA Mouser Part No 652-SMLJ22CA	Bourns	ESD Protection Diodes / TVS Diodes 22volts 5uA 84.4 Amps Bi-Dir Learn More about Bourns _smlj	Datasheet	33,738In Stock	Cut Tape €1.59 €1.01 €0.621 €0.549 Reel €0.39 View €0.452 €0.426 €0.385 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Circuit Breakers CIRCUIT BREAKER SWITCH 25A WH W68-X2Q12-25 TE Connectivity / P&B 1: €249.03 87In Stock	Mfr. Part No. W68-X2Q12-25 Mouser Part No 655-W68-X2Q12-25	TE Connectivity / P&B	Circuit Breakers CIRCUIT BREAKER SWITCH 25A WH	Datasheet	87In Stock	€249.03 €202.71 €168.93 €154.20	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes ESD PROTECTION ESD9101P2T5G onsemi 1: €0.301 342,373In Stock	Mfr. Part No. ESD9101P2T5G Mouser Part No 863-ESD9101P2T5G	onsemi	ESD Protection Diodes / TVS Diodes ESD PROTECTION	Datasheet	342,373In Stock	Cut Tape €0.301 €0.132 €0.115 €0.085 View Reel €0.049 €0.073 €0.064 €0.054 €0.049 MouseReel Available	Min.: 1 Mult.: 1 Max.: 8,000 : 8,000
ESD Protection Diodes / TVS Diodes RailClamp 8-Line 5V 0.6pF 5A SLP2611N9T RCLAMP7528T.TNT Semtech 1: €1.80 29,601In Stock	Mfr. Part No. RCLAMP7528T.TNT Mouser Part No 947-RCLAMP7528T.TNT	Semtech	ESD Protection Diodes / TVS Diodes RailClamp 8-Line 5V 0.6pF 5A SLP2611N9T Learn More about Semtech tvs esd suppressors		29,601In Stock	Cut Tape €1.80 €1.17 €0.886 €0.741 View Reel €0.459 €0.618 €0.567 €0.534 €0.499 €0.459 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes TVS, 5V, BI, SOD-323, 3K T&R SD24C.TCT Semtech 1: €1.07 332,928In Stock	Mfr. Part No. SD24C.TCT Mouser Part No 947-SD24C.TCT	Semtech	ESD Protection Diodes / TVS Diodes TVS, 5V, BI, SOD-323, 3K T&R Learn More about Semtech tvs esd suppressors	Datasheet	332,928In Stock	Cut Tape €1.07 €0.70 €0.577 €0.465 Reel €0.294 View €0.36 €0.338 €0.285 €0.272 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes LOW CAP TVS & TELCOM INTERFACE TCLAMP2502N.TCT Semtech 1: €4.55 7,500In Stock 12,000Expected 30/10/2026	Mfr. Part No. TCLAMP2502N.TCT Mouser Part No 947-TCLAMP2502N.TCT	Semtech	ESD Protection Diodes / TVS Diodes LOW CAP TVS & TELCOM INTERFACE Learn More about Semtech tclamp tvs arrays	Datasheet	7,500In Stock 12,000Expected 30/10/2026	Cut Tape €4.55 €3.02 €2.37 €2.15 View Reel €1.75 €1.88 €1.79 €1.75 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes TVS 2KA RATED 170V BI SMTO218 L LTKAK2-170C-L Littelfuse 1: €23.99 154In Stock	Mfr. Part No. LTKAK2-170C-L Mouser Part No 576-LTKAK2-170C-L	Littelfuse	ESD Protection Diodes / TVS Diodes TVS 2KA RATED 170V BI SMTO218 L Learn More about Littelfuse ltkak2 l tvs diodes	Datasheet	154In Stock	€23.99 €17.64 €17.62	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes TVS 5KW AECQ-101 TR13 RoHS TP5.0SMDJ160A Littelfuse 1: €4.70 5,404In Stock	Mfr. Part No. TP5.0SMDJ160A Mouser Part No 576-TP5.0SMDJ160A	Littelfuse	ESD Protection Diodes / TVS Diodes TVS 5KW AECQ-101 TR13 RoHS Learn More about Littelfuse tp5 0smdj tvs diodes	Datasheet	5,404In Stock	Cut Tape €4.70 €3.15 €2.78 €2.49 View Reel €1.78 €2.22 €1.90 €1.78 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
NTC (Negative Temperature Coefficient) Thermistors 5 dia Power NTC 5ohm Y kink bulk BN-LG05Y5R0MYB Bourns 1: €0.241 13,566In Stock	Mfr. Part No. BN-LG05Y5R0MYB Mouser Part No 652-BN-LG05Y5R0MYB	Bourns	NTC (Negative Temperature Coefficient) Thermistors 5 dia Power NTC 5ohm Y kink bulk Learn More about Bourns bn powrtherm thermistors	Datasheet	13,566In Stock	€0.241 €0.212 €0.186 €0.157 View €0.141 €0.133 €0.119 €0.101 €0.10	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 1.5KW,540V 5%,UNIDIR,SMC TVS 1.5SMC540AHM3_B/H Vishay Semiconductors 1: €1.87 2,844In Stock	Mfr. Part No. 1.5SMC540AHM3_B/H Mouser Part No 78-1.5SMC540AHM3_B/H	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 1.5KW,540V 5%,UNIDIR,SMC TVS Learn More about Vishay Semiconductors vishay 1point5smc tvs diodes	Datasheet	2,844In Stock	Cut Tape €1.87 €1.20 €0.903 €0.797 Reel €0.571 View €0.597 €0.503 €0.502 €0.463	Min.: 1 Mult.: 1 : 850
ESD Protection Diodes / TVS Diodes 600W,47V 5%, DFN3820A TVS 6DFN47A-M3/I Vishay Semiconductors 1: €0.654 12,125In Stock	Mfr. Part No. 6DFN47A-M3/I Mouser Part No 78-6DFN47A-M3/I	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 600W,47V 5%, DFN3820A TVS Learn More about Vishay Semiconductors vishay 6dfn12a to 6dfn51a tvs diodes	Datasheet	12,125In Stock	Cut Tape €0.654 €0.298 €0.262 €0.20 Reel €0.132 View €0.183 €0.18 €0.131	Min.: 1 Mult.: 1 : 14,000
ESD Protection Diodes / TVS Diodes 1-Line 9V 39.0A TVS DO-214AA(SMB) SMBJ9.0CA Semtech 1: €1.03 6,226In Stock	Mfr. Part No. SMBJ9.0CA Mouser Part No 947-SMBJ9.0CA	Semtech	ESD Protection Diodes / TVS Diodes 1-Line 9V 39.0A TVS DO-214AA(SMB) Learn More about Semtech smbjxxca tvs	Datasheet	6,226In Stock	Cut Tape €1.03 €0.477 €0.423 €0.328 Reel €0.257 View €0.323 €0.252 €0.227 €0.207 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Circuit Breaker Accessories 1A/1B ALARM SW Eaton Electrical MA1L1RPK MA1L1RPK Eaton Electrical 1: €492.51 1In Stock New Product	Mfr. Part No. MA1L1RPK Mouser Part No 504-MA1L1RPK New Product	Eaton Electrical	Circuit Breaker Accessories 1A/1B ALARM SW		1In Stock	€492.51 €375.59 €358.81 View Quote	Min.: 1 Mult.: 1
Circuit Breaker Accessories PDG2 TERMINAL (AL), 225A, 6-300, 3P Eaton Electrical PDG2X3TA225K PDG2X3TA225K Eaton Electrical 1: €194.71 6In Stock New Product	Mfr. Part No. PDG2X3TA225K Mouser Part No 504-PDG2X3TA225K New Product	Eaton Electrical	Circuit Breaker Accessories PDG2 TERMINAL (AL), 225A, 6-300, 3P	Datasheet	6In Stock	€194.71 €161.38 €145.13 €128.99 View Quote	Min.: 1 Mult.: 1
Circuit Breaker Accessories PD5 TERMINAL COVER, UL/IEC, 3P Eaton Electrical PDG5XTC3P PDG5XTC3P Eaton Electrical 1: €151.82 5In Stock New Product	Mfr. Part No. PDG5XTC3P Mouser Part No 504-PDG5XTC3P New Product	Eaton Electrical	Circuit Breaker Accessories PD5 TERMINAL COVER, UL/IEC, 3P	Datasheet	5In Stock	€151.82 €125.89 €117.31 €96.61 €89.71	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 600W,28V 5%, SlimSMA BIDIR TVS Vishay Semiconductors SMA6F28CA-M3/H SMA6F28CA-M3/H Vishay Semiconductors 1: €0.817 3,460In Stock New Product	Mfr. Part No. SMA6F28CA-M3/H Mouser Part No 78-SMA6F28CA-M3\H New Product	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 600W,28V 5%, SlimSMA BIDIR TVS	Datasheet	3,460In Stock	Cut Tape €0.817 €0.516 €0.329 €0.246 Reel €0.172 View €0.199 €0.169 €0.144 €0.136	Min.: 1 Mult.: 1 : 3,500
Fuse Clips 3AG Clip Brass & Nickel Plated 01010002Z Littelfuse 1: €0.439 233,648In Stock	Mfr. Part No. 01010002Z Mouser Part No 576-01010002Z	Littelfuse	Fuse Clips 3AG Clip Brass & Nickel Plated Learn More about Littelfuse 6x32 3ab3ag fuseholders	Datasheet	233,648In Stock	€0.439 €0.361 €0.334 €0.277 View €0.253 €0.23 €0.212 €0.195 €0.165	Min.: 1 Mult.: 1
Fuse Holder SCWS,Terminals,Cover Assorted 01520001TXN941 Littelfuse 1: €17.19 1,546In Stock	Mfr. Part No. 01520001TXN941 Mouser Part No 576-01520001TXN941	Littelfuse	Fuse Holder SCWS,Terminals,Cover Assorted Learn More about Littelfuse _fuseholders	Datasheet	1,546In Stock	€17.19 €14.16 €13.16 €10.90 View €9.50 €8.58 €8.08 €7.88	Min.: 1 Mult.: 1
Surface Mount Fuses 125VAC 2.5A .045ohms 452 NANO2 045202.5MRL Littelfuse 1: €2.69 10,409In Stock	Mfr. Part No. 045202.5MRL Mouser Part No 576-045202.5MRL	Littelfuse	Surface Mount Fuses 125VAC 2.5A .045ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	10,409In Stock	Cut Tape €2.69 €2.33 €2.15 €1.79 View Reel €1.07 €1.62 €1.48 €1.37 €1.07 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Surface Mount Fuses 50A 250V FAST ACTING 0456050.DRSDE Littelfuse 1: €6.59 6,790In Stock	Mfr. Part No. 0456050.DRSDE Mouser Part No 576-0456050.DRSDE	Littelfuse	Surface Mount Fuses 50A 250V FAST ACTING Learn More about Littelfuse 456de high current nano fuses	Datasheet	6,790In Stock	Cut Tape €6.59 €5.47 €5.05 €4.19 View Reel €3.02 €3.86 €3.47 €3.23 €3.02 €3.02 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Surface Mount Fuses 125V .125A HALIDE FREE 0466.125NRHF Littelfuse 1: €0.92 46,353In Stock	Mfr. Part No. 0466.125NRHF Mouser Part No 576-0466.125NRHF	Littelfuse	Surface Mount Fuses 125V .125A HALIDE FREE	Datasheet	46,353In Stock	Cut Tape €0.92 €0.827 €0.744 €0.645 View Reel €0.519 €0.558 €0.524 €0.519 €0.519 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Automotive Fuses 200A 32VDC Limiter Fuse 0CNL200.V Littelfuse 1: €34.45 866In Stock	Mfr. Part No. 0CNL200.V Mouser Part No 576-0CNL200.V	Littelfuse	Automotive Fuses 200A 32VDC Limiter Fuse	Datasheet	866In Stock	€34.45 €28.58 €19.99 €17.36 €16.59	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 3.00A 1206L300SLTHYR Littelfuse 1: €1.62 45,503In Stock	Mfr. Part No. 1206L300SLTHYR Mouser Part No 576-1206L300SLTHYR	Littelfuse	Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 3.00A Learn More about Littelfuse lorho	Datasheet	45,503In Stock	Cut Tape €1.62 €1.49 €1.24 €1.12 View Reel €0.906 €1.01 €0.929 €0.906 €0.906 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Resettable Fuses - PPTC PTC 30V POLY 1812 HALOGEN-FREE .35A 1812L035/30DR Littelfuse 1: €1.65 19,308In Stock	Mfr. Part No. 1812L035/30DR Mouser Part No 576-1812L035/30DR	Littelfuse	Resettable Fuses - PPTC PTC 30V POLY 1812 HALOGEN-FREE .35A Learn More about Littelfuse 1812l fuses	Datasheet	19,308In Stock	Cut Tape €1.65 €1.53 €1.26 €1.17 View Reel €0.95 €1.05 €0.972 €0.95 MouseReel Available	Min.: 1 Mult.: 1 : 1,500

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