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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.
Circuit Breakers Single, two and three pole rocker switch/thermal trip free circuit breakers (S-type TO CBE to EN 60934) of compact design for snap-in panel mounting. Available either with protection on one/both/all poles or, in the case of the double 3130-F120-P7T1-W14QR6-12A E-T-A 1: ¥8,748.5 190In Stock	Mfr. Part # 3130-F120-P7T1-W14QR6-12A Mouser Part # 457-120P7T1W14QR612A	E-T-A	Circuit Breakers Single, two and three pole rocker switch/thermal trip free circuit breakers (S-type TO CBE to EN 60934) of compact design for snap-in panel mounting. Available either with protection on one/both/all poles or, in the case of the double	Datasheet	190In Stock	¥8,748.5 ¥7,815 ¥6,856.6 ¥6,298.5 View ¥5,976.3 ¥5,938.1 Quote	Min.: 1 Mult.: 1
Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot 3120-N321-P7T1-W01D-3A E-T-A 1: ¥5,680.6 172In Stock	Mfr. Part # 3120-N321-P7T1-W01D-3A Mouser Part # 457-N321P7T1W01D3	E-T-A	Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot Learn More about E-T-A e t a 3120 n thermal circuit breakers	Datasheet	172In Stock	¥5,680.6 ¥4,713.9 ¥4,346.8 ¥3,601 View ¥3,318.7 ¥2,974.9 ¥2,787.2	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes TVS array 6 line Uni-dir, 300W (8/20us), Stand-off voltage = 3.3V SMDA03-6e3/TR7 Microchip Technology 1: ¥215.9 1,237In Stock	Mfr. Part # SMDA03-6e3/TR7 Mouser Part # 494-SMDA03-6E3/TR7	Microchip Technology	ESD Protection Diodes / TVS Diodes TVS array 6 line Uni-dir, 300W (8/20us), Stand-off voltage = 3.3V Learn More about Microchip Technology microchip high reliability	Datasheet	1,237In Stock	Cut Tape ¥215.9 Reel ¥181 MouseReel Available	Min.: 1 Mult.: 1 : 500
Surface Mount Fuses 1.5A 350 VAC 72 VCD 0679H1500-05 Bel Fuse 1: ¥74.7 13,517In Stock	Mfr. Part # 0679H1500-05 Mouser Part # 530-0679H1500-05	Bel Fuse	Surface Mount Fuses 1.5A 350 VAC 72 VCD Learn More about Bel Fuse bel 0679h fuse	Datasheet	13,517In Stock	Cut Tape ¥74.7 ¥67.6 ¥56.1 ¥51.8 View Reel ¥31.1 ¥41.7 ¥39.4 ¥37.2 ¥36 ¥31.1 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Surface Mount Fuses 2410 SMD AEC-Q200 Compliant Fuse Slow Blow 12A Silver Plating Tape and Reel (5000 pcs.) 0680H9120-05 Bel Fuse 1: ¥121.3 5,571In Stock	Mfr. Part # 0680H9120-05 Mouser Part # 530-0680H9120-05	Bel Fuse	Surface Mount Fuses 2410 SMD AEC-Q200 Compliant Fuse Slow Blow 12A Silver Plating Tape and Reel (5000 pcs.) Learn More about Bel Fuse 0680h brick fuses	Datasheet	5,571In Stock	Cut Tape ¥121.3 ¥111.6 ¥92.7 ¥85.5 View Reel ¥48.7 ¥77.9 ¥71.8 ¥66.3 ¥55 ¥48.7	Min.: 1 Mult.: 1 : 5,000
Surface Mount Fuses 0603 SMD Fuse. Slow Blow 3.5A 0ABB-3500-TM Bel Fuse 1: ¥129.6 4,039In Stock	Mfr. Part # 0ABB-3500-TM Mouser Part # 530-0ABB-3500-TM	Bel Fuse	Surface Mount Fuses 0603 SMD Fuse. Slow Blow 3.5A Learn More about Bel Fuse 0abb time delay fuses	Datasheet	4,039In Stock	Cut Tape ¥129.6 ¥109.1 ¥95.5 ¥91.5 View Reel ¥58.3 ¥87.2 ¥82.2 ¥76.9 ¥69.8 ¥58.3	Min.: 1 Mult.: 1 : 5,000
Surface Mount Fuses SMD fuse 500VDC 350VAC 2A 0ACG-2000-TE Bel Fuse 1: ¥553.1 2,264In Stock	Mfr. Part # 0ACG-2000-TE Mouser Part # 530-0ACG-2000-TE	Bel Fuse	Surface Mount Fuses SMD fuse 500VDC 350VAC 2A Learn More about Bel Fuse bel 0acg smd fuses	Datasheet	2,264In Stock	Cut Tape ¥553.1 ¥509.9 ¥423.6 ¥390.3 Reel ¥295.7 View ¥350.5 ¥323.9 ¥259.1 ¥249.2	Min.: 1 Mult.: 1 : 1,000
Fuses with Leads - Through Hole FUSE, CERAMIC TUBE 15A, 600VAC/500VDC 0ADKP9150-RE Bel Fuse 1: ¥378.7 1,925In Stock	Mfr. Part # 0ADKP9150-RE Mouser Part # 530-0ADKP9150-RE	Bel Fuse	Fuses with Leads - Through Hole FUSE, CERAMIC TUBE 15A, 600VAC/500VDC Learn More about Bel Fuse bel circuit protection fuses	Datasheet	1,925In Stock	¥378.7 ¥300.6 ¥272.4 ¥260.8 View ¥224.2 ¥209.3 ¥181 ¥167.8	Min.: 1 Mult.: 1
Cartridge Fuses 250V 1.5A 3.6X10 FA PT PB-FREE 087501.5MRET1P Littelfuse 1: ¥586.3 886In Stock	Mfr. Part # 087501.5MRET1P Mouser Part # 576-087501.5MRET1P	Littelfuse	Cartridge Fuses 250V 1.5A 3.6X10 FA PT PB-FREE Learn More about Littelfuse battery management solutions	Datasheet	886In Stock	Cut Tape ¥586.3 ¥534.8 ¥514.9 ¥405.3 Reel ¥272.4 View ¥343.8 ¥322.2 ¥285.7 ¥262.4	Min.: 1 Mult.: 1 : 1,000
Cartridge Fuses 250V 3.6X10 3.15A FUSE SB PT PB-FREE 08773.15MXEP Littelfuse 1: ¥392 1,291In Stock	Mfr. Part # 08773.15MXEP Mouser Part # 576-08773.15MXEP	Littelfuse	Cartridge Fuses 250V 3.6X10 3.15A FUSE SB PT PB-FREE Learn More about Littelfuse Littelfuse875 877	Datasheet	1,291In Stock	¥392 ¥325.6 ¥300.6 ¥249.2 View ¥230.9 ¥207.6 ¥192.7 ¥169.4 ¥165.8	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial 30KPA102A Littelfuse 1: ¥3,944.9 678In Stock	Mfr. Part # 30KPA102A Mouser Part # 576-30KPA102A	Littelfuse	ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial Learn More about Littelfuse tvsdiodes	Datasheet	678In Stock	Cut Tape ¥3,944.9 ¥2,900.1 ¥2,657.6 ¥2,654.3 ¥2,170.9 Reel ¥2,169.3	Min.: 1 Mult.: 1 : 800
ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial 30KPA43A Littelfuse 1: ¥3,818.6 731In Stock	Mfr. Part # 30KPA43A Mouser Part # 576-30KPA43A	Littelfuse	ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial Learn More about Littelfuse tvsdiodes	Datasheet	731In Stock	Cut Tape ¥3,818.6 ¥2,745.6 ¥2,488.2 ¥2,033.1 Reel ¥2,031.4	Min.: 1 Mult.: 1 : 800
Industrial & Electrical Fuses 1.25A 600VAC 300VDC Slo-Blo KLDR1.25TXP Littelfuse 1: ¥6,831.7 86In Stock	Mfr. Part # KLDR1.25TXP Mouser Part # 576-KLDR1.25TXP	Littelfuse	Industrial & Electrical Fuses 1.25A 600VAC 300VDC Slo-Blo Learn More about Littelfuse industrial portfolio	Datasheet	86In Stock	¥6,831.7 ¥5,682.3 ¥4,853.4 ¥4,303.7 View ¥4,253.8 ¥3,813.7 ¥3,753.9	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 1.5A 600VAC 300VDC Fast Acting KLKR01.5T Littelfuse 1: ¥5,303.6 137In Stock	Mfr. Part # KLKR01.5T Mouser Part # 576-KLKR01.5T	Littelfuse	Industrial & Electrical Fuses 1.5A 600VAC 300VDC Fast Acting Learn More about Littelfuse industrial portfolio	Datasheet	137In Stock	¥5,303.6 ¥4,400 ¥3,016.4 ¥2,685.8 View ¥2,627.7 ¥2,541.3	Min.: 1 Mult.: 1
Triacs 400V 8A Sensing 5-5-5-10mA L4008L6TP Littelfuse 1: ¥558.1 1,462In Stock	Mfr. Part # L4008L6TP Mouser Part # 576-L4008L6TP	Littelfuse	Triacs 400V 8A Sensing 5-5-5-10mA	Datasheet	1,462In Stock	¥558.1 ¥282.4 ¥249.2 ¥235.9	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 300A 500VAC 500VDC FF L50QS POWR-SPEED L50QS300.V Littelfuse 1: ¥26,680.6 27In Stock 33Expected 1/7/2027	Mfr. Part # L50QS300.V Mouser Part # 576-L50QS300.V	Littelfuse	Industrial & Electrical Fuses 300A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	27In Stock 33Expected 1/7/2027	¥26,680.6 ¥22,126.2 ¥20,403.7 ¥16,877.4 ¥15,537	Min.: 1 Mult.: 1
Triacs 600V 16A 80-80-80mA Q6016LH6TP Littelfuse 1: ¥729.2 4,860In Stock	Mfr. Part # Q6016LH6TP Mouser Part # 576-Q6016LH6TP	Littelfuse	Triacs 600V 16A 80-80-80mA Learn More about Littelfuse qtriac	Datasheet	4,860In Stock	¥729.2 ¥378.7 ¥345.5 ¥337.2	Min.: 1 Mult.: 1
Triacs 600V 30A 50-50-50mA Q6035NH5RP Littelfuse 1: ¥1,295.6 2,843In Stock	Mfr. Part # Q6035NH5RP Mouser Part # 576-Q6035NH5RP	Littelfuse	Triacs 600V 30A 50-50-50mA Learn More about Littelfuse qtriac	Datasheet	2,843In Stock	Cut Tape ¥1,295.6 ¥878.7 ¥641.1 Reel ¥591.3 MouseReel Available	Min.: 1 Mult.: 1 : 500
Triacs 800V 16A 35-35-35 mA Q8016LH4TP Littelfuse 1: ¥860.4 1,166In Stock	Mfr. Part # Q8016LH4TP Mouser Part # 576-Q8016LH4TP	Littelfuse	Triacs 800V 16A 35-35-35 mA Learn More about Littelfuse qtriac	Datasheet	1,166In Stock	¥860.4 ¥453.5 ¥426.9	Min.: 1 Mult.: 1
SCRs 25A 400V S4025NRP Littelfuse 1: ¥805.6 866In Stock	Mfr. Part # S4025NRP Mouser Part # 576-S4025NRP	Littelfuse	SCRs 25A 400V	Datasheet	866In Stock	Cut Tape ¥805.6 ¥533.2 ¥377 Reel ¥290.7 MouseReel Available	Min.: 1 Mult.: 1 : 500
ESD Protection Diodes / TVS Diodes 6Ch High Energy SCR Array SP725ABG Littelfuse 1: ¥616.2 1,651In Stock	Mfr. Part # SP725ABG Mouser Part # 576-SP725ABG	Littelfuse	ESD Protection Diodes / TVS Diodes 6Ch High Energy SCR Array Learn More about Littelfuse lightning tvs spa diodes	Datasheet	1,651In Stock	¥616.2 ¥405.3 ¥287.4 ¥262.4 View ¥234.2 ¥232.5	Min.: 1 Mult.: 1
Industrial & Electrical Fuses 2.5A 1500VDC Solar 50kA Photovoltaic SPXV02.5T Littelfuse 1: ¥6,956.3 97In Stock	Mfr. Part # SPXV02.5T Mouser Part # 576-SPXV02.5T	Littelfuse	Industrial & Electrical Fuses 2.5A 1500VDC Solar 50kA Photovoltaic Learn More about Littelfuse spxv solarfuse	Datasheet	97In Stock	¥6,956.3 ¥5,772 ¥4,365.1 ¥3,911.7 ¥3,642.6	Min.: 1 Mult.: 1
Surface Mount Fuses 0402 1amp 0.13ohm SM D F0402E1R00FSTR KYOCERA AVX 1: ¥68.1 67,456In Stock	Mfr. Part # F0402E1R00FSTR Mouser Part # 581-F0402E1R00FSTR	KYOCERA AVX	Surface Mount Fuses 0402 1amp 0.13ohm SM D Learn More about KYOCERA AVX avx accu guard ii fuses	Datasheet	67,456In Stock	Cut Tape ¥68.1 ¥58.1 ¥49 ¥44.5 View Reel ¥27.2 ¥40 ¥36.9 ¥34.1 ¥31.4 ¥27.2 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Surface Mount Fuses 0402 1.5amp 0.06ohm SMD F0402E1R50FSTR KYOCERA AVX 1: ¥68.1 13,654In Stock	Mfr. Part # F0402E1R50FSTR Mouser Part # 581-F0402E1R50FSTR	KYOCERA AVX	Surface Mount Fuses 0402 1.5amp 0.06ohm SMD Learn More about KYOCERA AVX avx accu guard ii fuses	Datasheet	13,654In Stock	Cut Tape ¥68.1 ¥58.1 ¥49 ¥44.5 View Reel ¥28.1 ¥40 ¥36.9 ¥34.1 ¥31.4 ¥28.1 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Surface Mount Fuses 62.5mA fuse F0603G0R06FNTR KYOCERA AVX 1: ¥149.5 21,660In Stock	Mfr. Part # F0603G0R06FNTR Mouser Part # 581-F0603G0R06FNTR	KYOCERA AVX	Surface Mount Fuses 62.5mA fuse Learn More about KYOCERA AVX avx accu guard low current fuses	Datasheet	21,660In Stock	Cut Tape ¥149.5 ¥137.2 ¥113.9 ¥105.1 Reel ¥70.4 View ¥94.5 ¥87.2 ¥80.4 ¥64.8 MouseReel Available	Min.: 1 Mult.: 1 : 3,000

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Circuit Protection

Types of Circuit Protection