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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.
NTC Thermistors Surface Temp Sensor A1004RT24K1-F TE Connectivity / Measurement Specialties 1: ¥2,895.1 Lead-Time 9 Weeks	Mfr. Part # A1004RT24K1-F Mouser Part # 657-A1004RT24K1	TE Connectivity / Measurement Specialties	NTC Thermistors Surface Temp Sensor	Datasheet	Lead-Time 9 Weeks	¥2,895.1 ¥2,557.9 ¥2,292.2 ¥2,172.6 View ¥2,009.8 ¥1,870.3 ¥1,838.7 ¥1,724.1 ¥1,715.8	Min.: 1 Mult.: 1
Circuit Breakers PP11-2-5.00A-OA-V AIRPAX 1: ¥3,288.8 93In Stock New At Mouser	Mfr. Part # PP11-2-5.00A-OA-V Mouser Part # 874-PP112500AOAV New At Mouser	AIRPAX	Circuit Breakers	Datasheet	93In Stock	¥3,288.8 ¥2,679.2 ¥2,591.2 ¥2,554.6 View ¥2,479.9 ¥2,405.1 Quote	Min.: 1 Mult.: 1
Circuit Breakers RCD F200 2P 40A 100MA 480Y/277 F202AC-40/0.1 ABB 1: ¥112,152.4 3In Stock	Mfr. Part # F202AC-40/0.1 Mouser Part # 894-F202AC-40/0.1	ABB	Circuit Breakers RCD F200 2P 40A 100MA 480Y/277 Learn More about ABB f200 circuit breakers	Datasheet	3In Stock	¥112,152.4 ¥99,259.7 ¥89,444.9 View Quote	Min.: 1 Mult.: 1
Circuit Breakers MCSW 3VA53 3P 400A 65KA 3VA53400BB310AA0 Siemens 1: ¥527,488.8 1In Stock	Mfr. Part # 3VA53400BB310AA0 Mouser Part # 982-3VA53400BB310AA0	Siemens	Circuit Breakers MCSW 3VA53 3P 400A 65KA Learn More about Siemens 3va molded case circuit breakers	Datasheet	1In Stock	¥527,488.8	Min.: 1 Mult.: 1
Circuit Breakers BRKR 3VA62 3P 250A 65KA ETU3-LI AL 3VA62256HL360AA0 Siemens 1: ¥695,077 1In Stock	Mfr. Part # 3VA62256HL360AA0 Mouser Part # 982-3VA62256HL360AA0	Siemens	Circuit Breakers BRKR 3VA62 3P 250A 65KA ETU3-LI AL Learn More about Siemens 3va molded case circuit breakers	Datasheet	1In Stock	¥695,077	Min.: 1 Mult.: 1
Circuit Breakers BRKR ED4 2P 480V 20A ED42B020 Siemens 1: ¥297,887.1 1In Stock	Mfr. Part # ED42B020 Mouser Part # 982-ED42B020	Siemens	Circuit Breakers BRKR ED4 2P 480V 20A	Datasheet	1In Stock	¥297,887.1	Min.: 1 Mult.: 1
Circuit Breakers Multi9 GFP 4P 100A 86mA A-SI 480Y/277V M9R12491 Schneider Electric 1: ¥249,150 3In Stock New At Mouser	Mfr. Part # M9R12491 Mouser Part # 996-M9R12491 New At Mouser	Schneider Electric	Circuit Breakers Multi9 GFP 4P 100A 86mA A-SI 480Y/277V	Datasheet	3In Stock	¥249,150	Min.: 1 Mult.: 1
Circuit Breaker Accessories MPR SURGE SUPPRESSOR MPR-SS L-Com 1: ¥28,060.9 5In Stock New At Mouser	Mfr. Part # MPR-SS Mouser Part # 17-MPR-SS New At Mouser	L-Com	Circuit Breaker Accessories MPR SURGE SUPPRESSOR		5In Stock	¥28,060.9 ¥24,539.6 ¥24,159.2 ¥23,656 View Quote	Min.: 1 Mult.: 1
Fuse Holder CFB1 FUSE BLOCK, NO FUSE CFB1-NF Bourns 1: ¥8,625.6 21In Stock	Mfr. Part # CFB1-NF Mouser Part # 652-CFB1-NF	Bourns	Fuse Holder CFB1 FUSE BLOCK, NO FUSE Learn More about Bourns cfb riedon fuse blocks	Datasheet	21In Stock	¥8,625.6 ¥7,153.9 ¥6,599.2 ¥4,949.8 View ¥4,865.1 ¥4,782	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 400W,16V 5%,BIDIR,SMA TVS P4SMA16CAHM3_A/I Vishay Semiconductors 1: ¥166.1 7,180In Stock	Mfr. Part # P4SMA16CAHM3_A/I Mouser Part # 78-P4SMA16CAHM3_A/I	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 400W,16V 5%,BIDIR,SMA TVS Learn More about Vishay Semiconductors vishay semi esmp package evolution	Datasheet	7,180In Stock	Cut Tape ¥166.1 ¥103.3 ¥67.4 ¥50.8 View Reel ¥32.6 ¥46.2 ¥42.4 ¥41.4 ¥32.6	Min.: 1 Mult.: 1 : 7,500
ESD Protection Diodes / TVS Diodes 600W,33V 5%,UNIDIR,SMB TVS Vishay Semiconductors SM6T33AHE3_B/I SM6T33AHE3_B/I Vishay Semiconductors 1: ¥151.2 2,823In Stock	Mfr. Part # SM6T33AHE3_B/I Mouser Part # 78-SM6T33AHE3BI	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 600W,33V 5%,UNIDIR,SMB TVS Learn More about Vishay Semiconductors vishay semi esmp package evolution	Datasheet	2,823In Stock	Cut Tape ¥151.2 ¥94.2 ¥61.5 ¥46.3 Reel ¥38.7 View ¥42.2 ¥29.7	Min.: 1 Mult.: 1 : 3,200
Circuit Breakers MotBreak GV4PE Therm/Mag 115A 50kA Elink GV4PE115N Schneider Electric 1: ¥171,285.6 1In Stock New At Mouser	Mfr. Part # GV4PE115N Mouser Part # 996-GV4PE115N New At Mouser	Schneider Electric	Circuit Breakers MotBreak GV4PE Therm/Mag 115A 50kA Elink	Datasheet	1In Stock	¥171,285.6	Min.: 1 Mult.: 1
Fuse Holder Accessories M10 Insulated Stud 908-082 Littelfuse 1: ¥1,024.8 82In Stock	Mfr. Part # 908-082 Mouser Part # 576-908-082	Littelfuse	Fuse Holder Accessories M10 Insulated Stud	Datasheet	82In Stock	¥1,024.8 ¥960.1 ¥925.2 ¥720.9 View ¥583 ¥558.1 ¥538.2	Min.: 1 Mult.: 1
Surface Mount Fuses .075A 2.0mohm Brown Thin Film Fuses 0201 F0201G0R07FNTR\500 KYOCERA AVX 1: ¥117.9 4,320In Stock	Mfr. Part # F0201G0R07FNTR\500 Mouser Part # 581-F0201G0R07FNTR\5	KYOCERA AVX	Surface Mount Fuses .075A 2.0mohm Brown Thin Film Fuses 0201 Learn More about KYOCERA AVX avx accu guard low current fuses	Datasheet	4,320In Stock	Cut Tape ¥117.9 ¥95.2 ¥80.1 ¥70.4 Reel ¥58.1 View ¥63.3 ¥53.7 ¥49.5 ¥43.2 MouseReel Available	Min.: 1 Mult.: 1 : 500
NTC Thermistors NTCFLEX0510k2%3435K25mm Vishay NTCAFLEX05103GL NTCAFLEX05103GL Vishay 1: ¥503.3 179In Stock	Mfr. Part # NTCAFLEX05103GL Mouser Part # 594-NTCAFLEX05103GL	Vishay	NTC Thermistors NTCFLEX0510k2%3435K25mm Learn More about Vishay _NTCAFLEX05	Datasheet	179In Stock	¥503.3 ¥378.7 ¥335.5 ¥318.9 View ¥308.9 ¥269.1 ¥255.8 ¥247.5	Min.: 1 Mult.: 1
Fuse Holder CFB1 FUSE BLOCK 150A FUSE CFB1-150 Bourns 1: ¥12,195.1 7In Stock 40Expected 12/28/2026	Mfr. Part # CFB1-150 Mouser Part # 652-CFB1-150	Bourns	Fuse Holder CFB1 FUSE BLOCK 150A FUSE Learn More about Bourns cfb riedon fuse blocks	Datasheet	7In Stock 40Expected 12/28/2026	¥12,195.1 ¥10,211.8 ¥9,524.2 ¥7,610.7 View ¥7,391.5 ¥7,296.8	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 400W,22V 5%,UNIDIR,SMA TVS P4SMA22AHM3_A/I Vishay Semiconductors 1: ¥169.4 7,480In Stock	Mfr. Part # P4SMA22AHM3_A/I Mouser Part # 78-P4SMA22AHM3_A/I	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 400W,22V 5%,UNIDIR,SMA TVS Learn More about Vishay Semiconductors vishay semi esmp package evolution	Datasheet	7,480In Stock	Cut Tape ¥169.4 ¥106.6 ¥68.1 ¥50.8 View Reel ¥25.4 ¥41 ¥35.5 ¥34.9 ¥25.4	Min.: 1 Mult.: 1 : 7,500
ESD Protection Diodes / TVS Diodes 1KW,12V 5%,UNIDIR,SMB TVS Vishay Semiconductors SMB10J12AHE3_B/H SMB10J12AHE3_B/H Vishay Semiconductors 1: ¥239.2 2,383In Stock	Mfr. Part # SMB10J12AHE3_B/H Mouser Part # 78-SMB10J12AHE3BH	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 1KW,12V 5%,UNIDIR,SMB TVS Learn More about Vishay Semiconductors vishay semi esmp package evolution	Datasheet	2,383In Stock	Cut Tape ¥239.2 ¥149.3 ¥98 ¥71.9 Reel ¥65.4 ¥49.7	Min.: 1 Mult.: 1 : 750
NTC Thermistors NCU15WM154J60RC Murata Electronics 1: ¥21.6 10,000In Stock	Mfr. Part # NCU15WM154J60RC Mouser Part # 81-NCU15WM154J60RC	Murata Electronics	NTC Thermistors Learn More about Murata Electronics murata ncu ntc thermistors	Datasheet	10,000In Stock	¥21.6 ¥18.6 ¥16.4 ¥13.5 View ¥11.8 ¥11.3 ¥10.1 ¥9.5 ¥8.5	Min.: 1 Mult.: 1
NTC Thermistors NCU15XW153E60RC Murata Electronics 1: ¥21.6 9,259In Stock	Mfr. Part # NCU15XW153E60RC Mouser Part # 81-NCU15XW153E60RC	Murata Electronics	NTC Thermistors Learn More about Murata Electronics murata ncu ntc thermistors	Datasheet	9,259In Stock	¥21.6 ¥18.6 ¥16.4 ¥13.5 View ¥11.8 ¥11.3 ¥10.1 ¥9.5 ¥8.5	Min.: 1 Mult.: 1
NTC Thermistors NCU15XW222J60RC Murata Electronics 1: ¥21.6 9,982In Stock	Mfr. Part # NCU15XW222J60RC Mouser Part # 81-NCU15XW222J60RC	Murata Electronics	NTC Thermistors Learn More about Murata Electronics murata ncu ntc thermistors	Datasheet	9,982In Stock	¥21.6 ¥18.6 ¥16.4 ¥13.5 View ¥11.8 ¥11.3 ¥10.1 ¥9.5 ¥8.8	Min.: 1 Mult.: 1
NTC Thermistors NCU15XW223J60RC Murata Electronics 1: ¥21.6 9,998In Stock	Mfr. Part # NCU15XW223J60RC Mouser Part # 81-NCU15XW223J60RC	Murata Electronics	NTC Thermistors Learn More about Murata Electronics murata ncu ntc thermistors	Datasheet	9,998In Stock	¥21.6 ¥18.6 ¥16.4 ¥13.5 View ¥11.8 ¥11.3 ¥10.1 ¥9.5 ¥8.5	Min.: 1 Mult.: 1
NTC Thermistors NCU15XW223J6SRC Murata Electronics 1: ¥18.3 9,520In Stock	Mfr. Part # NCU15XW223J6SRC Mouser Part # 81-NCU15XW223J6SRC	Murata Electronics	NTC Thermistors Learn More about Murata Electronics murata ncu auto thermistors	Datasheet	9,520In Stock	¥18.3 ¥14.3 ¥12.6 ¥10.8 View ¥9.5 ¥9 ¥8.1 ¥7.1 ¥7	Min.: 1 Mult.: 1
Connectorized Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, Quarter-wave stub technology 3400.17.0428 HUBER+SUHNER 1: ¥30,770 36In Stock	Mfr. Part # 3400.17.0428 Mouser Part # 455-3400170428	HUBER+SUHNER	Connectorized Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, Quarter-wave stub technology Learn More about HUBER+SUHNER huber suhner cable solutions	Datasheet	36In Stock	¥30,770 ¥28,351.6 ¥27,753.6 View Quote	Min.: 1 Mult.: 1
Circuit Breakers 508, 1P, DM, 24VDC, 2CH, ,4A/4A, No Comm CL2 REX12-TA2-107-DC24V-4A/4A-CL2 E-T-A 1: ¥16,442.2 32In Stock	Mfr. Part # REX12-TA2-107-DC24V-4A/4A-CL2 Mouser Part # 457-107DC24V4A/4ACL2	E-T-A	Circuit Breakers 508, 1P, DM, 24VDC, 2CH, ,4A/4A, No Comm CL2	Datasheet	32In Stock	¥16,442.2 ¥14,268 ¥12,203.4 ¥11,803.1 View Quote	Min.: 1 Mult.: 1

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Circuit Protection

Types of Circuit Protection