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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 (JPY) Filter the results in the table by unit price based on your quantity.	Qty.
Triacs Triacs 40 Amp 600 Volt TG40E60 SanRex 1: ¥2,342 7,341In Stock	Mfr. Part # TG40E60 Mouser Part # 197-TG40E60	SanRex	Triacs Triacs 40 Amp 600 Volt Learn More about SanRex tg tab terminal triacs	Datasheet	7,341In Stock	¥2,342 ¥1,722.5 ¥1,313.9 ¥1,254.1 Quote Quote	Min.: 1 Mult.: 1
Connectorized Surge Protectors 1-port Outdoor Surge protector PD-OUT/SP11 Microchip Technology 1: ¥15,844.3 248In Stock	Mfr. Part # PD-OUT/SP11 Mouser Part # 494-PD-OUT/SP11	Microchip Technology	Connectorized Surge Protectors 1-port Outdoor Surge protector Learn More about Microchip Technology microsemi microchip poe midspans	Datasheet	248In Stock	¥15,844.3 ¥14,724.8 ¥14,146.7	Min.: 1 Mult.: 1
Resettable Fuses - PPTC Fuse 0ZCF0185FF2C Bel Fuse 1: ¥53.2 135,450In Stock	Mfr. Part # 0ZCF0185FF2C Mouser Part # 530-0ZCF0185FF2C	Bel Fuse	Resettable Fuses - PPTC Fuse Learn More about Bel Fuse 0zcf resettable pptc fuses	Datasheet	135,450In Stock	Cut Tape ¥53.2 ¥41.5 ¥37.9 ¥35.5 Reel ¥27.4 View ¥33.6 ¥29.9 ¥25.2 ¥22.1 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Surface Mount Fuses 125VAC 3A .034ohms 452 NANO2 0452003.NRL Littelfuse 1: ¥543.1 12,960In Stock	Mfr. Part # 0452003.NRL Mouser Part # 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 ¥543.1 ¥458.4 ¥370.4 ¥317.3 View Reel ¥229.2 ¥305.6 ¥262.4 ¥242.5 ¥229.2 ¥229.2 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Surface Mount Fuses 32VAC 5A .027ohms 458 NANO2 0458005.DR Littelfuse 1: ¥388.7 13,284In Stock	Mfr. Part # 0458005.DR Mouser Part # 576-0458005.DR	Littelfuse	Surface Mount Fuses 32VAC 5A .027ohms 458 NANO2 Learn More about Littelfuse nano fuses	Datasheet	13,284In Stock	Cut Tape ¥388.7 ¥345.5 ¥239.2 ¥220.9 View Reel ¥169.4 ¥202.6 ¥184.4 ¥169.4 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Cartridge Fuses 500V 50A Thru-Hole RoHS 0526050.UXTHP Littelfuse 1: ¥4,591 986In Stock	Mfr. Part # 0526050.UXTHP Mouser Part # 576-0526050.UXTHP	Littelfuse	Cartridge Fuses 500V 50A Thru-Hole RoHS Learn More about Littelfuse 526 527 cartridge fuses	Datasheet	986In Stock	¥4,591 ¥3,808.7 ¥3,499.7 ¥2,911.7 View ¥2,682.5 ¥2,478.2 ¥2,476.6	Min.: 1 Mult.: 1
Automotive Fuses 30A Low Profile 0895030.Z Littelfuse 1: ¥435.2 11,959In Stock	Mfr. Part # 0895030.Z Mouser Part # 576-0895030.Z	Littelfuse	Automotive Fuses 30A Low Profile	Datasheet	11,959In Stock	¥435.2 ¥360.4 ¥308.9 ¥275.7 View ¥240.8 ¥219.3 ¥191 ¥186 ¥184.4	Min.: 1 Mult.: 1
Automotive Fuses STRIP 30 80A W/O HOUSING 156.5610.5801 Littelfuse 1: ¥220.9 29,305In Stock	Mfr. Part # 156.5610.5801 Mouser Part # 576-156.5610.5801	Littelfuse	Automotive Fuses STRIP 30 80A W/O HOUSING	Datasheet	29,305In Stock	¥220.9 ¥184.4 ¥169.4 ¥140.4 View ¥105.1 ¥90.9 ¥88	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 1.85A 33V 2920 2920L185DR Littelfuse 1: ¥136.2 45,033In Stock 40,500Expected 12/24/2026	Mfr. Part # 2920L185DR Mouser Part # 576-2920L185	Littelfuse	Resettable Fuses - PPTC 1.85A 33V 2920 Learn More about Littelfuse 2920l polyswitch resettable fuses	Datasheet	45,033In Stock 40,500Expected 12/24/2026	Cut Tape ¥136.2 ¥117.9 ¥103.5 ¥95.5 Reel ¥54.8 View ¥85.9 ¥79.2 ¥53.2 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Fuse Holder HWB18 w/ TPAs PDM31002ZXM Littelfuse 1: ¥6,670.6 811In Stock 36Expected 11/9/2026	Mfr. Part # PDM31002ZXM Mouser Part # 576-PDM31002ZXM	Littelfuse	Fuse Holder HWB18 w/ TPAs Learn More about Littelfuse hwb18	Datasheet	811In Stock 36Expected 11/9/2026	¥6,670.6 ¥5,534.5 ¥5,105.9 ¥4,228.9 View ¥3,898.4 ¥3,496.4	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 20V 2.2A 4 CHANNEL SP724AHTG Littelfuse 1: ¥318.9 106,565In Stock	Mfr. Part # SP724AHTG Mouser Part # 576-SP724AHTG	Littelfuse	ESD Protection Diodes / TVS Diodes 20V 2.2A 4 CHANNEL Learn More about Littelfuse lightning tvs spa diodes	Datasheet	106,565In Stock	Cut Tape ¥318.9 ¥201 ¥171.1 ¥159.1 View Reel ¥121.8 ¥141.4 ¥139.5 ¥121.8 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Circuit Breakers TMC 81C 20A 2907573 Phoenix Contact 1: ¥3,582.8 1,641In Stock	Mfr. Part # 2907573 Mouser Part # 651-2907573	Phoenix Contact	Circuit Breakers TMC 81C 20A Learn More about Phoenix Contact TMC thermomagnetic circuit breakers	Datasheet	1,641In Stock	¥3,582.8	Min.: 1 Mult.: 1
Resettable Fuses - PPTC 15V 100MA-HD 40A MAX MF-FSMF010X-2 Bourns 1: ¥74.7 104,663In Stock	Mfr. Part # MF-FSMF010X-2 Mouser Part # 652-MF-FSMF010X-2	Bourns	Resettable Fuses - PPTC 15V 100MA-HD 40A MAX Learn More about Bourns multifuse	Datasheet	104,663In Stock	Cut Tape ¥74.7 ¥53.7 ¥48.2 ¥41.7 View Reel ¥33.2 ¥38.2 ¥36 ¥34.2 ¥33.4 ¥33.2 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Surface Mount Fuses 1.5A 110V TIME DELAY SF-1206SA150W-2 Bourns 1: ¥156.1 114,141In Stock	Mfr. Part # SF-1206SA150W-2 Mouser Part # 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 ¥156.1 ¥143.8 ¥119.3 ¥110 Reel ¥72.4 View ¥98.8 ¥91.2 ¥84 ¥66.6 MouseReel Available	Min.: 1 Mult.: 1 : 3,500
Circuit Breakers 40A TOGGLE ACTUATOR W31-X2M1G-40 TE Connectivity / P&B 1: ¥9,620.5 422In Stock	Mfr. Part # W31-X2M1G-40 Mouser Part # 655-W31-X2M1G-40	TE Connectivity / P&B	Circuit Breakers 40A TOGGLE ACTUATOR	Datasheet	422In Stock	¥9,620.5 ¥9,467.7 ¥8,496 ¥8,080.8 View ¥7,602.4 ¥7,600.7 Quote	Min.: 1 Mult.: 1
NTC Thermistors THERMISTOR 311P18-06S7R6 TE Connectivity / Measurement Specialties 1: ¥96,095.5 41In Stock	Mfr. Part # 311P18-06S7R6 Mouser Part # 657-311P18-06S7R6	TE Connectivity / Measurement Specialties	NTC Thermistors THERMISTOR	Datasheet	41In Stock	¥96,095.5 ¥87,853.6 ¥80,925.6 ¥75,874.5 View Quote	Min.: 1 Mult.: 1
SCRs 20A If; 1200V Vr TO-247AD 3L VS-30TPS12LHM3 Vishay Semiconductors 1: ¥981.7 6,621In Stock	Mfr. Part # VS-30TPS12LHM3 Mouser Part # 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	¥981.7 ¥569.7 ¥493.3 ¥413.6	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 33V 200W UNI-DIR SZSMF AEC-Q101 SZSMF33AT1G Littelfuse 1: ¥111.3 178,451In Stock	Mfr. Part # SZSMF33AT1G Mouser Part # 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 ¥111.3 ¥62.8 ¥50 ¥40.4 Reel ¥25.7 View ¥38 ¥23.6 ¥23.4 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Varistors 750VAC 10% 60mm High E B72260B0751K001 TDK 1: ¥19,109.8 347In Stock	Mfr. Part # B72260B0751K001 Mouser Part # 871-B72260B0751K001	TDK	Varistors 750VAC 10% 60mm High E Learn More about TDK epcosvaristors	Datasheet	347In Stock	¥19,109.8 ¥16,159.9	Min.: 1 Mult.: 1
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors TG30-A90XSMD B88069X9991T203 TDK 1: ¥395.3 12,736In Stock	Mfr. Part # B88069X9991T203 Mouser Part # 871-B88069X9991T203	TDK	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors TG30-A90XSMD	Datasheet	12,736In Stock	Cut Tape ¥395.3 ¥365.4 ¥302.3 ¥279 Reel ¥186 View ¥250.8 ¥230.9 ¥224.2 ¥181 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
ESD Protection Diodes / TVS Diodes 8-Line TVS Array Low Capacitance RCLAMP0508M.TBT Semtech 1: ¥689.3 34,156In Stock	Mfr. Part # RCLAMP0508M.TBT Mouser Part # 947-RCLAMP0508M.TBT	Semtech	ESD Protection Diodes / TVS Diodes 8-Line TVS Array Low Capacitance Learn More about Semtech tvs esd suppressors	Datasheet	34,156In Stock	Cut Tape ¥689.3 ¥428.5 ¥350.5 ¥270.7 Reel ¥247.5 View ¥225.9 ¥220.9 MouseReel Available	Min.: 1 Mult.: 1 : 500
Fuse Holder 3AG Inline W/ Red Leads 01500322.HXA Littelfuse 1: ¥2,013.1 3,760In Stock	Mfr. Part # 01500322.HXA Mouser Part # 576-01500322.HXA	Littelfuse	Fuse Holder 3AG Inline W/ Red Leads Learn More about Littelfuse 6x32 3ab3ag fuseholders	Datasheet	3,760In Stock	¥2,013.1 ¥1,803.8 ¥1,654.4 ¥1,573 View ¥1,448.4 ¥1,272.3 ¥1,255.7	Min.: 1 Mult.: 1
Cartridge Fuses 250V 6.3A Time Lag (Slo-Blo) 021806.3MXP Littelfuse 1: ¥212.6 21,913In Stock	Mfr. Part # 021806.3MXP Mouser Part # 576-021806.3MXP	Littelfuse	Cartridge Fuses 250V 6.3A Time Lag (Slo-Blo) Learn More about Littelfuse 5x20 fuseholders	Datasheet	21,913In Stock	¥212.6 ¥199.3 ¥164.3 ¥119.8	Min.: 1 Mult.: 1
Cartridge Fuses 50A 500V NORMAL BLOW 0607050.UXTH500P Littelfuse 1: ¥2,900.1 2,230In Stock	Mfr. Part # 0607050.UXTH500P Mouser Part # 576-0607050.UXTH500P	Littelfuse	Cartridge Fuses 50A 500V NORMAL BLOW Learn More about Littelfuse 607 cartridge fuses	Datasheet	2,230In Stock	¥2,900.1 ¥2,405.1 ¥2,219.1 ¥1,838.7 View ¥1,694.2 ¥1,521.5 ¥1,494.9	Min.: 1 Mult.: 1
Automotive Fuses 58V 60A LP Jcase 0895060.U Littelfuse 1: ¥466.7 10,613In Stock	Mfr. Part # 0895060.U Mouser Part # 576-0895060.U	Littelfuse	Automotive Fuses 58V 60A LP Jcase	Datasheet	10,613In Stock	¥466.7 ¥388.7 ¥277.4 ¥244.2 View ¥229.2 ¥201 ¥199.3	Min.: 1 Mult.: 1

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Circuit Protection

Types of Circuit Protection