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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.
Board Mount Surge Protectors 100mA 850Vimp P850-G120-WH Bourns 1: Rp43.663,48 23.320In Stock	Mfr. Part No. P850-G120-WH Mouser Part No 652-P850-G120-WH	Bourns	Board Mount Surge Protectors 100mA 850Vimp Learn More about Bourns Bourns_TBU	Datasheet	23.320In Stock	Cut Tape Rp43.663,48 Rp37.976,22 Rp26.234,78 Rp21.281,36 Reel Rp16.438,02 View Rp19.997,14 Rp16.419,67 Quote MouseReel Available	Min.: 1 Mult.: 1 : 3.000
PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 85C Temperature Sensor B59641A0085A062 TDK 1: Rp6.971,48 138.583In Stock	Mfr. Part No. B59641A0085A062 Mouser Part No 871-B59641A0085A062	TDK	PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 85C Temperature Sensor Learn More about TDK epcos superior ptc thermistors	Datasheet	138.583In Stock	Cut Tape Rp6.971,48 Rp6.366,06 Rp5.485,45 Rp4.513,12 Reel Rp3.540,78 View Rp3.981,08 Rp3.815,97 Rp3.320,63 Rp3.192,20 MouseReel Available	Min.: 1 Mult.: 1 : 4.000
ESD Protection Diodes / TVS Diodes RAILCLAMP0524S 5V SOT RCLAMP0524S.TCT Semtech 1: Rp33.389,72 66.454In Stock	Mfr. Part No. RCLAMP0524S.TCT Mouser Part No 947-RCLAMP0524S.TCT	Semtech	ESD Protection Diodes / TVS Diodes RAILCLAMP0524S 5V SOT Learn More about Semtech tvs esd suppressors	Datasheet	66.454In Stock	Cut Tape Rp33.389,72 Rp23.482,88 Rp17.593,81 Rp15.263,87 Reel Rp9.723,38 View Rp11.998,28 Rp11.117,68 Rp9.448,19 Rp9.246,38 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
Thermal Cut-offs TCO, High Current, SMD, 85C, Self Hold AEC-Q200 SD85ABB Bourns 1: Rp52.102,64 3.205In Stock	Mfr. Part No. SD85ABB Mouser Part No 652-SD85ABB	Bourns	Thermal Cut-offs TCO, High Current, SMD, 85C, Self Hold AEC-Q200 Learn More about Bourns ad sd miniature tco devices	Datasheet	3.205In Stock	Cut Tape Rp52.102,64 Rp45.131,16 Rp36.508,54 Rp31.004,74 View Reel Rp21.464,82 Rp30.087,44 Rp25.500,94 Rp21.648,28 Rp21.464,82 MouseReel Available	Min.: 1 Mult.: 1 : 4.000
ESD Protection Diodes / TVS Diodes 24V 15A 30kV SOD882 Bi-dir TVS SC24COM-01ETG Littelfuse 1: Rp10.640,68 38.960In Stock	Mfr. Part No. SC24COM-01ETG Mouser Part No 576-SC24COM-01ETG	Littelfuse	ESD Protection Diodes / TVS Diodes 24V 15A 30kV SOD882 Bi-dir TVS Learn More about Littelfuse sc24com 01etg tvs diode	Datasheet	38.960In Stock	Cut Tape Rp10.640,68 Rp5.045,15 Rp4.292,96 Rp3.192,20 Reel Rp1.852,95 View Rp2.843,63 Rp1.761,22 MouseReel Available	Min.: 1 Mult.: 1 : 10.000
ESD Protection Diodes / TVS Diodes Zen TVS 5000W 20V Bi DO-214AB TR13 SZ5KASMC20CAT3G Littelfuse 1: Rp71.916,32 7.355In Stock	Mfr. Part No. SZ5KASMC20CAT3G Mouser Part No 576-SZ5KASMC20CAT3G	Littelfuse	ESD Protection Diodes / TVS Diodes Zen TVS 5000W 20V Bi DO-214AB TR13 Learn More about Littelfuse sz5kasmc tvs diodes	Datasheet	7.355In Stock	Cut Tape Rp71.916,32 Rp47.149,22 Rp39.627,36 Rp34.307,02 View Reel Rp27.335,54 Rp28.986,68 Rp27.335,54 Rp27.335,54 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2.500
Thermal Cut-offs TCO, High Current, SMD, 55C, Self Hold AEC-Q200 SD55ABB Bourns 1: Rp35.958,16 2.825In Stock	Mfr. Part No. SD55ABB Mouser Part No 652-SD55ABB	Bourns	Thermal Cut-offs TCO, High Current, SMD, 55C, Self Hold AEC-Q200 Learn More about Bourns ad sd miniature tco devices	Datasheet	2.825In Stock	Cut Tape Rp35.958,16 Rp34.123,56 Rp32.288,96 Rp30.821,28 View Reel Rp19.630,22 Rp29.537,06 Rp24.767,10 Rp22.932,50 Rp22.198,66 Rp19.630,22 MouseReel Available	Min.: 1 Mult.: 1 : 4.000
Fuse Holder FUSE BOX ASSY, HARD WIRED,PRE FUSE 2141034-1 TE Connectivity / AMP 1: Rp522.861,00 1.671In Stock	Mfr. Part No. 2141034-1 Mouser Part No 571-2141034-1	TE Connectivity / AMP	Fuse Holder FUSE BOX ASSY, HARD WIRED,PRE FUSE	Datasheet	1.671In Stock	Rp522.861,00 Rp433.882,90 Rp413.518,84 Rp413.335,38 Rp273.905,78	Min.: 1 Mult.: 1
Triacs Triacs 40 Amp 600 Volt TG40E60 SanRex 1: Rp267.301,22 7.335In Stock	Mfr. Part No. TG40E60 Mouser Part No 197-TG40E60	SanRex	Triacs Triacs 40 Amp 600 Volt Learn More about SanRex tg tab terminal triacs	Datasheet	7.335In Stock	Rp267.301,22 Rp190.248,02 Rp187.129,20 Rp138.512,30 View Quote	Min.: 1 Mult.: 1
Connectorised Surge Protectors 1-port Outdoor Surge protector PD-OUT/SP11 Microchip Technology 1: Rp1.750.024,94 248In Stock	Mfr. Part No. PD-OUT/SP11 Mouser Part No 494-PD-OUT/SP11	Microchip Technology	Connectorised Surge Protectors 1-port Outdoor Surge protector Learn More about Microchip Technology microsemi microchip poe midspans	Datasheet	248In Stock	Rp1.750.024,94 Rp1.602.523,10	Min.: 1 Mult.: 1
Resettable Fuses - PPTC Fuse 0ZCF0185FF2C Bel Fuse 1: Rp5.870,72 135.205In Stock	Mfr. Part No. 0ZCF0185FF2C Mouser Part No 530-0ZCF0185FF2C	Bel Fuse	Resettable Fuses - PPTC Fuse Learn More about Bel Fuse 0zcf resettable pptc fuses	Datasheet	135.205In Stock	Cut Tape Rp5.870,72 Rp4.586,50 Rp4.182,89 Rp3.926,04 Reel Rp3.027,09 View Rp3.705,89 Rp3.302,28 Rp2.788,59 Rp2.440,02 MouseReel Available	Min.: 1 Mult.: 1 : 2.000
Surface Mount Fuses 125VAC 3A .034ohms 452 NANO2 0452003.NRL Littelfuse 1: Rp59.991,42 12.960In Stock	Mfr. Part No. 0452003.NRL Mouser Part No 576-0452003.NRL	Littelfuse	Surface Mount Fuses 125VAC 3A .034ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	12.960In Stock	Cut Tape Rp59.991,42 Rp50.634,96 Rp40.911,58 Rp35.040,86 View Reel Rp25.317,48 Rp33.756,64 Rp28.986,68 Rp26.785,16 Rp25.317,48 Rp25.317,48 MouseReel Available	Min.: 1 Mult.: 1 : 5.000
Surface Mount Fuses 32VAC 5A .027ohms 458 NANO2 0458005.DR Littelfuse 1: Rp42.929,64 13.284In Stock	Mfr. Part No. 0458005.DR Mouser Part No 576-0458005.DR	Littelfuse	Surface Mount Fuses 32VAC 5A .027ohms 458 NANO2 Learn More about Littelfuse nano fuses	Datasheet	13.284In Stock	Cut Tape Rp42.929,64 Rp38.159,68 Rp26.418,24 Rp24.400,18 View Reel Rp18.712,92 Rp22.382,12 Rp20.364,06 Rp18.712,92 MouseReel Available	Min.: 1 Mult.: 1 : 1.500
Automotive Fuses 30A Low Profile 0895030.Z Littelfuse 1: Rp48.066,52 11.859In Stock	Mfr. Part No. 0895030.Z Mouser Part No 576-0895030.Z	Littelfuse	Automotive Fuses 30A Low Profile	Datasheet	11.859In Stock	Rp48.066,52 Rp39.810,82 Rp34.123,56 Rp30.454,36 View Rp26.601,70 Rp24.216,72 Rp21.097,90 Rp20.547,52 Rp20.364,06	Min.: 1 Mult.: 1
Automotive Fuses STRIP 30 80A W/O HOUSING 156.5610.5801 Littelfuse 1: Rp24.400,18 29.305In Stock	Mfr. Part No. 156.5610.5801 Mouser Part No 576-156.5610.5801	Littelfuse	Automotive Fuses STRIP 30 80A W/O HOUSING	Datasheet	29.305In Stock	Rp24.400,18 Rp20.364,06 Rp18.712,92 Rp15.502,37 View Rp11.613,02 Rp10.035,26 Rp9.723,38	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 1.85A 33V 2920 2920L185DR Littelfuse 1: Rp15.043,72 43.533In Stock 40.500Expected 24/12/2026	Mfr. Part No. 2920L185DR Mouser Part No 576-2920L185	Littelfuse	Resettable Fuses - PPTC 1.85A 33V 2920 Learn More about Littelfuse 2920l polyswitch resettable fuses	Datasheet	43.533In Stock 40.500Expected 24/12/2026	Cut Tape Rp15.043,72 Rp13.025,66 Rp11.429,56 Rp10.548,95 Reel Rp6.054,18 View Rp9.484,88 Rp8.751,04 Rp5.870,72 MouseReel Available	Min.: 1 Mult.: 1 : 1.500
Fuse Holder HWB18 w/ TPAs PDM31002ZXM Littelfuse 1: Rp736.775,36 837In Stock	Mfr. Part No. PDM31002ZXM Mouser Part No 576-PDM31002ZXM	Littelfuse	Fuse Holder HWB18 w/ TPAs Learn More about Littelfuse hwb18	Datasheet	837In Stock	Rp736.775,36 Rp611.288,72 Rp563.956,04 Rp467.089,16 View Rp430.580,62 Rp386.183,30	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 20V 2.2A 4 CHANNEL SP724AHTG Littelfuse 1: Rp35.224,32 105.772In Stock	Mfr. Part No. SP724AHTG Mouser Part No 576-SP724AHTG	Littelfuse	ESD Protection Diodes / TVS Diodes 20V 2.2A 4 CHANNEL Learn More about Littelfuse lightning tvs spa diodes	Datasheet	105.772In Stock	Cut Tape Rp35.224,32 Rp22.198,66 Rp18.896,38 Rp17.575,47 View Reel Rp13.447,62 Rp15.612,45 Rp15.410,64 Rp13.447,62 MouseReel Available	Min.: 1 Mult.: 1 : 3.000
Circuit Breakers TMC 81C 20A 2907573 Phoenix Contact 1: Rp395.723,22 1.640In Stock	Mfr. Part No. 2907573 Mouser Part No 651-2907573	Phoenix Contact	Circuit Breakers TMC 81C 20A Learn More about Phoenix Contact TMC thermomagnetic circuit breakers	Datasheet	1.640In Stock	Rp395.723,22	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 15V 100MA-HD 40A MAX MF-FSMF010X-2 Bourns 1: Rp8.255,70 104.613In Stock	Mfr. Part No. MF-FSMF010X-2 Mouser Part No 652-MF-FSMF010X-2	Bourns	Resettable Fuses - PPTC 15V 100MA-HD 40A MAX Learn More about Bourns multifuse	Datasheet	104.613In Stock	Cut Tape Rp8.255,70 Rp5.925,76 Rp5.320,34 Rp4.604,85 View Reel Rp3.669,20 Rp4.219,58 Rp3.981,08 Rp3.779,28 Rp3.687,55 Rp3.669,20 MouseReel Available	Min.: 1 Mult.: 1 : 5.000
Surface Mount Fuses 1.5A 110V TIME DELAY SF-1206SA150W-2 Bourns 1: Rp17.245,24 114.141In Stock	Mfr. Part No. SF-1206SA150W-2 Mouser Part No 652-SF-1206SA150W-2	Bourns	Surface Mount Fuses 1.5A 110V TIME DELAY Learn More about Bourns aec q200 singlfuse fuses	Datasheet	114.141In Stock	Cut Tape Rp17.245,24 Rp15.887,64 Rp13.172,43 Rp12.145,05 Reel Rp7.998,86 View Rp10.915,87 Rp10.071,95 Rp9.283,08 Rp7.356,75 MouseReel Available	Min.: 1 Mult.: 1 : 3.500
Circuit Breakers 40A TOGGLE ACTUATOR W31-X2M1G-40 TE Connectivity / P&B 1: Rp1.062.600,32 422In Stock	Mfr. Part No. W31-X2M1G-40 Mouser Part No 655-W31-X2M1G-40	TE Connectivity / P&B	Circuit Breakers 40A TOGGLE ACTUATOR	Datasheet	422In Stock	Rp1.062.600,32 Rp1.045.722,00 Rp938.397,90 Rp892.532,90 View Rp839.696,42 Rp839.512,96 Quote	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors THERMISTOR 311P18-06S7R6 TE Connectivity / Measurement Specialties 1: Rp10.613.894,84 41In Stock	Mfr. Part No. 311P18-06S7R6 Mouser Part No 657-311P18-06S7R6	TE Connectivity / Measurement Specialties	NTC (Negative Temperature Coefficient) Thermistors THERMISTOR	Datasheet	41In Stock	Rp10.613.894,84 Rp9.703.566,32 Rp8.938.354,66 Rp8.380.452,80 View Quote	Min.: 1 Mult.: 1
SCRs 20A If; 1200V Vr TO-247AD 3L VS-30TPS12LHM3 Vishay Semiconductors 1: Rp108.424,86 6.621In Stock	Mfr. Part No. VS-30TPS12LHM3 Mouser Part No 78-VS-30TPS12LHM3	Vishay Semiconductors	SCRs 20A If; 1200V Vr TO-247AD 3L Learn More about Vishay Semiconductors vishay aec q101 scr thyristors	Datasheet	6.621In Stock	Rp108.424,86 Rp62.926,78 Rp54.487,62 Rp45.681,54	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 33V 200W UNI-DIR SZSMF AEC-Q101 SZSMF33AT1G Littelfuse 1: Rp12.291,82 178.451In Stock	Mfr. Part No. SZSMF33AT1G Mouser Part No 863-SZSMF33AT1G	Littelfuse	ESD Protection Diodes / TVS Diodes 33V 200W UNI-DIR SZSMF AEC-Q101 Learn More about Littelfuse tvsdiodes	Datasheet	178.451In Stock	Cut Tape Rp12.291,82 Rp6.934,79 Rp5.522,15 Rp4.458,08 Reel Rp2.843,63 View Rp4.201,23 Rp2.605,13 Rp2.586,79 MouseReel Available	Min.: 1 Mult.: 1 : 3.000

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Circuit Protection

Types of Circuit Protection