.hide-partial { max-height: none; } .show-more { display: none; }

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.
More...

Please view our selection of circuit protection devices below.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Types of Circuit Protection

List Images

Results: 375,794

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

Filter by

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) Filter the results in the table by unit price based on your quantity.	Qty.
PTC Thermistors 850A 130A 70 10X2.5 PTC Thermistor B59850C0130A070 TDK 1: ¥308.9 22,095In Stock	Mfr. Part # B59850C0130A070 Mouser Part # 871-B59850C0130A070	TDK	PTC Thermistors 850A 130A 70 10X2.5 PTC Thermistor Learn More about TDK epcos ptc thermistors	Datasheet	22,095In Stock	¥308.9 ¥285.7 ¥242.5 ¥237.5 Reel ¥158.3 View ¥215.9 ¥197.7 ¥182.7 ¥143.7	Min.: 1 Mult.: 1 : 1,300
ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SMF DO219AB SMF24A-HE3_A08 Vishay Semiconductors 1: ¥112.9 23,470In Stock	Mfr. Part # SMF24A-HE3_A08 Mouser Part # 78-SMF24A-HE3A08	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SMF DO219AB	Datasheet	23,470In Stock	Cut Tape ¥112.9 ¥70.9 ¥45.3 ¥33.9 Reel ¥23.4 View ¥27.4 ¥23.1 ¥19.6 ¥16.9	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SMF DO219AB SMF36A-HE3_A08 Vishay Semiconductors 1: ¥112.9 26,905In Stock	Mfr. Part # SMF36A-HE3_A08 Mouser Part # 78-SMF36A-HE3A08	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SMF DO219AB	Datasheet	26,905In Stock	Cut Tape ¥112.9 ¥70.9 ¥45.3 ¥33.9 Reel ¥23.4 View ¥27.4 ¥23.1 ¥19.6 ¥18.6	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes Zen TVS 5000W 33V Bi DO-214AB TR13 SZ5KASMC33CAT3G Littelfuse 1: ¥662.7 3,315In Stock	Mfr. Part # SZ5KASMC33CAT3G Mouser Part # 576-SZ5KASMC33CAT3G	Littelfuse	ESD Protection Diodes / TVS Diodes Zen TVS 5000W 33V Bi DO-214AB TR13 Learn More about Littelfuse sz5kasmc tvs diodes	Datasheet	3,315In Stock	Cut Tape ¥662.7 ¥433.5 ¥358.8 ¥310.6 Reel ¥247.5 View ¥262.4 ¥247.5 ¥240.8 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Varistors 35VAC 45VDC 1800pF AEC-Q200 V45MLA1812NRAUTO Littelfuse 1: ¥506.6 1,404In Stock	Mfr. Part # V45MLA1812NRAUTO Mouser Part # 576-V45MLA1812NRAUTO	Littelfuse	Varistors 35VAC 45VDC 1800pF AEC-Q200 Learn More about Littelfuse mla1812nr varistors	Datasheet	1,404In Stock	Cut Tape ¥506.6 ¥365.4 ¥343.8 ¥294 Reel ¥199.3 View ¥275.7 ¥240.8 ¥196 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors High Energy GDT 25mm 500V, T2 terminal GDT225E-50-T2-BX Bourns 1: ¥4,567.8 118In Stock	Mfr. Part # GDT225E-50-T2-BX Mouser Part # 652-GDT225E-50-T2-BX	Bourns	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors High Energy GDT 25mm 500V, T2 terminal Learn More about Bourns gdt212e gdt216e gdt220e gdt225e gdts	Datasheet	118In Stock	¥4,567.8 ¥3,790.4 ¥3,496.4 ¥2,895.1 View ¥2,753.9 ¥2,504.8	Min.: 1 Mult.: 1
Thermal Cutoffs TCO, High Current, Axial Lead, 55C, Self Hold AEC-Q200 AD55ABB Bourns 1: ¥304 2,467In Stock	Mfr. Part # AD55ABB Mouser Part # 652-AD55ABB	Bourns	Thermal Cutoffs TCO, High Current, Axial Lead, 55C, Self Hold AEC-Q200 Learn More about Bourns ad sd miniature tco devices	Datasheet	2,467In Stock	¥304 ¥289 ¥240.8 ¥229.2 View ¥219.3 ¥209.3 ¥192.7 ¥187.7 ¥176.1	Min.: 1 Mult.: 1
Thermal Cutoffs TCO, High Current, SMD, 82C, non Self Hold AEC-Q200 SD82WBB Bourns 1: ¥317.3 4,933In Stock	Mfr. Part # SD82WBB Mouser Part # 652-SD82WBB	Bourns	Thermal Cutoffs TCO, High Current, SMD, 82C, non Self Hold AEC-Q200 Learn More about Bourns ad sd miniature tco devices	Datasheet	4,933In Stock	Cut Tape ¥317.3 ¥302.3 ¥285.7 ¥274.1 View Reel ¥179.4 ¥262.4 ¥224.2 ¥204.3 ¥179.4 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Automotive Fuses Fuse - Mega 70V (SF51) 2-M8 holes 250A 0998250.UX-2M8 Littelfuse 1: ¥2,659.3 1,905In Stock 2,000Expected 1/11/2027	Mfr. Part # 0998250.UX-2M8 Mouser Part # 576-0998250.UX-2M8	Littelfuse	Automotive Fuses Fuse - Mega 70V (SF51) 2-M8 holes 250A Learn More about Littelfuse off highway electric vehicle solutions	Datasheet	1,905In Stock 2,000Expected 1/11/2027	¥2,659.3 ¥2,381.9 View Quote	Min.: 1 Mult.: 1
NTC Thermistors RADIAL LEAD DISC POT ALUMTAB HSG NTC TER A-850 Amphenol Advanced Sensors 1: ¥11,321.4 325In Stock	Mfr. Part # A-850 Mouser Part # 527-A-850	Amphenol Advanced Sensors	NTC Thermistors RADIAL LEAD DISC POT ALUMTAB HSG NTC TER Learn More about Amphenol Advanced Sensors amphenol ntc thermistors radial lead		325In Stock	¥11,321.4 ¥10,349.7 ¥9,534.1 ¥8,937.8 View ¥8,786.7 ¥7,901.4 Quote	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes Zen TVS 5000W 26V Bi DO-214AB TR13 SZ5KASMC26CAT3G Littelfuse 1: ¥651.1 3,465In Stock	Mfr. Part # SZ5KASMC26CAT3G Mouser Part # 576-SZ5KASMC26CAT3G	Littelfuse	ESD Protection Diodes / TVS Diodes Zen TVS 5000W 26V Bi DO-214AB TR13 Learn More about Littelfuse sz5kasmc tvs diodes	Datasheet	3,465In Stock	Cut Tape ¥651.1 ¥426.9 ¥358.8 ¥310.6 Reel ¥247.5 View ¥262.4 ¥247.5 ¥240.8 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Thermal Cutoffs 16V 500A MAX HCRTP-MINI-B Littelfuse 1: ¥212.6 7,598In Stock 4,000Expected 2/10/2027 New Product	Mfr. Part # HCRTP-MINI-B Mouser Part # 650-HCRTP-MINI-B New Product	Littelfuse	Thermal Cutoffs 16V 500A MAX	Datasheet	7,598In Stock 4,000Expected 2/10/2027	¥212.6 ¥187.7 ¥177.7 ¥157.5 View ¥123.9 ¥118.4 ¥107.6	Min.: 1 Mult.: 1
Varistors 20mm Radial Disc MOV - Kinked Leads, T&R MOV-20D621KKTR Bourns 1: ¥294 8,024In Stock 6,000Expected 11/11/2026	Mfr. Part # MOV-20D621KKTR Mouser Part # 652-MOV-20D621KKTR	Bourns	Varistors 20mm Radial Disc MOV - Kinked Leads, T&R Learn More about Bourns mov xd metal oxide varistors	Datasheet	8,024In Stock 6,000Expected 11/11/2026	Cut Tape ¥294 ¥181 ¥124.4 Reel ¥124.4 ¥102.6 View ¥83.7 ¥76.6 MouseReel Available	Min.: 1 Mult.: 1 : 250
Cartridge Fuses FUSE, CERAMIC TUBE 0.5A, 600VAC/600VDC 0ADAC0500-BE Bel Fuse 1: ¥627.9 9,876In Stock End of Life	Mfr. Part # 0ADAC0500-BE Mouser Part # 530-0ADAC0500-BE End of Life	Bel Fuse	Cartridge Fuses FUSE, CERAMIC TUBE 0.5A, 600VAC/600VDC Learn More about Bel Fuse bel 0adac fuses	Datasheet	9,876In Stock	¥627.9 ¥498.3 ¥446.8 ¥403.6 View ¥372.1 ¥348.8 ¥310.6 ¥308.9 ¥280.7	Min.: 1 Mult.: 1
Thermal Cutoffs TCO, High Current, SMD, 72C, Self Hold AEC-Q200 SD72ABB Bourns 1: ¥471.7 3,469In Stock	Mfr. Part # SD72ABB Mouser Part # 652-SD72ABB	Bourns	Thermal Cutoffs TCO, High Current, SMD, 72C, Self Hold AEC-Q200 Learn More about Bourns ad sd miniature tco devices	Datasheet	3,469In Stock	Cut Tape ¥471.7 ¥408.6 ¥330.5 ¥280.7 View Reel ¥206 ¥272.4 ¥230.9 ¥220.9 ¥206 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Circuit Breaker Accessories PDG3 UVR, 380-440VAC, SCREW TERMINAL Eaton Electrical PDG3XUV440ACV PDG3XUV440ACV Eaton Electrical 1: ¥87,901.8 1In Stock New Product	Mfr. Part # PDG3XUV440ACV Mouser Part # 504-PDG3XUV440ACV New Product	Eaton Electrical	Circuit Breaker Accessories PDG3 UVR, 380-440VAC, SCREW TERMINAL	Datasheet	1In Stock	¥87,901.8 ¥72,818.2 ¥67,121 View Quote	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 600W,33V 5%, SlimSMA BIDIR TVS Vishay Semiconductors SMA6F33CA-M3/H SMA6F33CA-M3/H Vishay Semiconductors 1: ¥157.8 3,280In Stock New Product	Mfr. Part # SMA6F33CA-M3/H Mouser Part # 78-SMA6F33CA-M3\H New Product	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 600W,33V 5%, SlimSMA BIDIR TVS	Datasheet	3,280In Stock	Cut Tape ¥157.8 ¥99.7 ¥63.6 ¥47.5 Reel ¥33.2 View ¥38.4 ¥32.6 ¥27.7 ¥26.2	Min.: 1 Mult.: 1 : 3,500
Circuit Breaker Accessories UVTA COIL 48VDC_FOR VCP-W BKRS Eaton Electrical 8064A19G01 8064A19G01 Eaton Electrical 1: ¥143,578.5 1In Stock New Product	Mfr. Part # 8064A19G01 Mouser Part # 504-8064A19G01 New Product	Eaton Electrical	Circuit Breaker Accessories UVTA COIL 48VDC_FOR VCP-W BKRS		1In Stock	¥143,578.5	Min.: 1 Mult.: 1
Circuit Breaker Accessories LG Handle Mech Close Couple Black Eaton Electrical LHMCCB LHMCCB Eaton Electrical 1: ¥58,415.7 1In Stock New Product	Mfr. Part # LHMCCB Mouser Part # 504-LHMCCB New Product	Eaton Electrical	Circuit Breaker Accessories LG Handle Mech Close Couple Black	Datasheet	1In Stock	¥58,415.7 ¥48,310.2 ¥45,493.1 View Quote	Min.: 1 Mult.: 1
Circuit Breaker Accessories PDG2 TERMINAL (STEEL), 100A, 14-1/0, 3P Eaton Electrical PDG2X3T100 PDG2X3T100 Eaton Electrical 1: ¥14,748 5In Stock 6Expected 11/13/2026 New Product	Mfr. Part # PDG2X3T100 Mouser Part # 504-PDG2X3T100 New Product	Eaton Electrical	Circuit Breaker Accessories PDG2 TERMINAL (STEEL), 100A, 14-1/0, 3P	Datasheet	5In Stock 6Expected 11/13/2026	¥14,748 ¥12,233.3 ¥11,504.1 ¥9,585.6 ¥8,946.1	Min.: 1 Mult.: 1
Circuit Breaker Accessories PDG5 TERM (AL), 1200A, (4) 4/0-500 Eaton Electrical PDG5X1TA1200 PDG5X1TA1200 Eaton Electrical 1: ¥21,714.3 5In Stock New Product	Mfr. Part # PDG5X1TA1200 Mouser Part # 504-PDG5X1TA1200 New Product	Eaton Electrical	Circuit Breaker Accessories PDG5 TERM (AL), 1200A, (4) 4/0-500	Datasheet	5In Stock	¥21,714.3 ¥18,005.2 ¥16,603.4 ¥13,731.5 View ¥12,683.4 Quote	Min.: 1 Mult.: 1
Circuit Breaker Accessories F FRM FLEX Shaft LEN 4 FT Nema 1,3R,12 Eaton Electrical F1S04C F1S04C Eaton Electrical 1: ¥152,084.5 1In Stock New Product	Mfr. Part # F1S04C Mouser Part # 504-F1S04C New Product	Eaton Electrical	Circuit Breaker Accessories F FRM FLEX Shaft LEN 4 FT Nema 1,3R,12	Datasheet	1In Stock	¥152,084.5	Min.: 1 Mult.: 1
Circuit Breaker Accessories UNDERVOLTAGE RELEASE Eaton Electrical NZM4-XU480-525AC NZM4-XU480-525AC Eaton Electrical 1: ¥142,138.4 1In Stock New Product	Mfr. Part # NZM4-XU480-525AC Mouser Part # 504-NZM4-XU480-525AC New Product	Eaton Electrical	Circuit Breaker Accessories UNDERVOLTAGE RELEASE	Datasheet	1In Stock	¥142,138.4 ¥136,295 ¥132,488 View Quote	Min.: 1 Mult.: 1
Circuit Breaker Accessories 1A/1B ALARM SW Eaton Electrical MA1L1RPK MA1L1RPK Eaton Electrical 1: ¥95,123.8 1In Stock New Product	Mfr. Part # MA1L1RPK Mouser Part # 504-MA1L1RPK New Product	Eaton Electrical	Circuit Breaker Accessories 1A/1B ALARM SW		1In Stock	¥95,123.8 ¥72,540.9 ¥69,300.2 View Quote	Min.: 1 Mult.: 1
Circuit Breaker Accessories PDG2 TERMINAL (AL), 225A, 6-300, 3P Eaton Electrical PDG2X3TA225K PDG2X3TA225K Eaton Electrical 1: ¥37,606.7 4In Stock New Product	Mfr. Part # PDG2X3TA225K Mouser Part # 504-PDG2X3TA225K New Product	Eaton Electrical	Circuit Breaker Accessories PDG2 TERMINAL (AL), 225A, 6-300, 3P	Datasheet	4In Stock	¥37,606.7 ¥31,168.7 ¥28,029.4 ¥24,913.3 View Quote	Min.: 1 Mult.: 1

Share This

Circuit Protection

Types of Circuit Protection