Fuses

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Mounting Type	Fuse Type	Current Rating (Amps)	Voltage Rating - AC	Voltage Rating - DC	Response Time	Package / Case	Breaking Capacity @ Rated Voltage	Melting I²t	Approval Agency	Operating Temperature	Color	Size / Dimension
0451002.MRL FUSE BRD MNT 2A 125VAC/VDC 2SMD Littelfuse Inc.	6,374 In Stock	1 : $2.87000 Cut Tape (CT) 1,000 : $1.15253 Tape & Reel (TR)	NANO²® 451	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Surface Mount	Board Mount (Cartridge Style Excluded)	2 A	125 V	125 V	Fast Blow	2-SMD, Square End Block	50A	0.53	CSA, PSE, UL	-55°C ~ 125°C	-	0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
0451003.MRL FUSE BRD MNT 3A 125VAC/VDC 2SMD Littelfuse Inc.	5,276 In Stock	1 : $2.87000 Cut Tape (CT) 1,000 : $1.15253 Tape & Reel (TR)	NANO²® 451	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Surface Mount	Board Mount (Cartridge Style Excluded)	3 A	125 V	125 V	Fast Blow	2-SMD, Square End Block	50A	1.65	CSA, PSE, UL	-55°C ~ 125°C	-	0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
0451001.MRL FUSE BRD MNT 1A 125VAC/VDC 2SMD Littelfuse Inc.	3,394 In Stock	1 : $2.87000 Cut Tape (CT) 1,000 : $1.15253 Tape & Reel (TR)	NANO²® 451	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Surface Mount	Board Mount (Cartridge Style Excluded)	1 A	125 V	125 V	Fast Blow	2-SMD, Square End Block	50A	0.459	CSA, PSE, UL	-55°C ~ 125°C	-	0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
0451004.MRL FUSE BRD MNT 4A 125VAC/VDC 2SMD Littelfuse Inc.	3,301 In Stock	1 : $2.87000 Cut Tape (CT) 1,000 : $1.15253 Tape & Reel (TR)	NANO²® 451	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Surface Mount	Board Mount (Cartridge Style Excluded)	4 A	125 V	125 V	Fast Blow	2-SMD, Square End Block	50A	3.152	CSA, PSE, UL	-55°C ~ 125°C	-	0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
0451008.MRL FUSE BRD MNT 8A 125VAC/VDC 2SMD Littelfuse Inc.	2,649 In Stock	1 : $2.87000 Cut Tape (CT) 1,000 : $1.15253 Tape & Reel (TR)	NANO²® 451	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Surface Mount	Board Mount (Cartridge Style Excluded)	8 A	125 V	125 V	Fast Blow	2-SMD, Square End Block	50A	20.23	CSA, PSE, UL	-55°C ~ 125°C	-	0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
045101.5MRL FUSE BRD MNT 1.5A 125VAC/VDC SMD Littelfuse Inc.	1,152 In Stock	1 : $2.87000 Cut Tape (CT) 1,000 : $1.15253 Tape & Reel (TR)	NANO²® 451	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Surface Mount	Board Mount (Cartridge Style Excluded)	1.5 A	125 V	125 V	Fast Blow	2-SMD, Square End Block	50A	0.853	CSA, PSE, UL	-55°C ~ 125°C	-	0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
0451.250MRL FUSE BRD MT 250MA 125VAC/VDC SMD Littelfuse Inc.	441 In Stock	1 : $2.87000 Cut Tape (CT) 1,000 : $1.15253 Tape & Reel (TR)	NANO²® 451	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Surface Mount	Board Mount (Cartridge Style Excluded)	250 mA	125 V	125 V	Fast Blow	2-SMD, Square End Block	50A	0.0158	CSA, UL	-55°C ~ 125°C	-	0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
0451010.MRL FUSE BRD MNT 10A 125VAC/VDC 2SMD Littelfuse Inc.	2,223 In Stock	1 : $4.36000 Cut Tape (CT) 1,000 : $1.75137 Tape & Reel (TR)	NANO²® 451	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Surface Mount	Board Mount (Cartridge Style Excluded)	10 A	125 V	125 V	Fast Blow	2-SMD, Square End Block	35A AC, 50A DC	26.46	CSA, PSE, UL	-55°C ~ 125°C	-	0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
0451020.MRL FUSE BRD MNT 20A 65VAC 65VDC SMD Littelfuse Inc.	560 In Stock	1 : $4.36000 Cut Tape (CT) 1,000 : $1.75137 Tape & Reel (TR)	NANO²® 451	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Surface Mount	Board Mount (Cartridge Style Excluded)	20 A	65 V	65 V	Fast Blow	2-SMD, Square End Block	100A AC, 150A DC	154.0	cURus	-55°C ~ 125°C	-	0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
0451.160MRL FUSE BRD MT 160MA 125VAC/VDC SMD Littelfuse Inc.	2,853 In Stock	1 : $5.97000 Cut Tape (CT) 1,000 : $2.40097 Tape & Reel (TR)	NANO²® 451	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Surface Mount	Board Mount (Cartridge Style Excluded)	160 mA	125 V	125 V	Fast Blow	2-SMD, Square End Block	50A	0.0048	CSA, UL	-55°C ~ 125°C	-	0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
0451.080MRL FUSE BRD MNT 80MA 125VAC/VDC SMD Littelfuse Inc.	955 In Stock	1 : $8.81000 Cut Tape (CT) 1,000 : $3.60280 Tape & Reel (TR)	NANO²® 451	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Surface Mount	Board Mount (Cartridge Style Excluded)	80 mA	125 V	125 V	Fast Blow	2-SMD, Square End Block	50A	3.3E-4	CSA, UL	-55°C ~ 125°C	-	0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
0451005.MRSN FUSE BRD MNT 5A 125VAC/VDC 2SMD Littelfuse Inc.	2,302 In Stock	1 : $2.82000 Cut Tape (CT) 1,000 : $1.13651 Tape & Reel (TR)	NANO²® 451	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Surface Mount	Board Mount (Cartridge Style Excluded)	5 A	125 V	125 V	Fast Blow	2-SMD, Square End Block	50A	5.566	CSA, METI, UR	-55°C ~ 125°C	-	0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
0451010.MRSN FUSE BRD MNT 10A 125VAC/VDC 2SMD Littelfuse Inc.	1,573 In Stock	1 : $2.82000 Cut Tape (CT) 1,000 : $1.13651 Tape & Reel (TR)	NANO²® 451	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Surface Mount	Board Mount (Cartridge Style Excluded)	10 A	125 V	125 V	Fast Blow	2-SMD, Square End Block	35A	26.46	CSA, METI, UR	-55°C ~ 125°C	-	0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
045106.3MRSN FUSE BOARD MNT 6.3A 125VAC 2SMD Littelfuse Inc.	1,418 In Stock	1 : $2.82000 Cut Tape (CT) 1,000 : $1.13651 Tape & Reel (TR)	NANO²® 451	Tape & Reel (TR) Cut Tape (CT)	Active	Surface Mount	Board Mount (Cartridge Style Excluded)	6.3 A	125 V	-	Fast Blow	2-SMD, Square End Block	50A	9.17	CSA, METI, UR	-55°C ~ 125°C	-	0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
0451.500NRL FUSE BRD MT 500MA 125VAC/VDC SMD Littelfuse Inc.	12,184 In Stock	1 : $2.87000 Cut Tape (CT) 5,000 : $1.04805 Tape & Reel (TR)	NANO²® 451	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Surface Mount	Board Mount (Cartridge Style Excluded)	500 mA	125 V	125 V	Fast Blow	2-SMD, Square End Block	50A	0.0795	CSA, UL	-55°C ~ 125°C	-	0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
0451.750NRL FUSE BRD MT 750MA 125VAC/VDC SMD Littelfuse Inc.	8,500 In Stock	1 : $2.87000 Cut Tape (CT) 5,000 : $1.04805 Tape & Reel (TR)	NANO²® 451	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Surface Mount	Board Mount (Cartridge Style Excluded)	750 mA	125 V	125 V	Fast Blow	2-SMD, Square End Block	50A	0.185	CSA, UL	-55°C ~ 125°C	-	0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
0451002.NRL FUSE BRD MNT 2A 125VAC/VDC 2SMD Littelfuse Inc.	7,263 In Stock	1 : $2.87000 Cut Tape (CT) 5,000 : $1.04805 Tape & Reel (TR)	NANO²® 451	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Surface Mount	Board Mount (Cartridge Style Excluded)	2 A	125 V	125 V	Fast Blow	2-SMD, Square End Block	50A	0.53	CSA, PSE, UL	-55°C ~ 125°C	-	0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
0451.250NRL FUSE BRD MT 250MA 125VAC/VDC SMD Littelfuse Inc.	5,615 In Stock 5,000 Factory	1 : $2.87000 Cut Tape (CT) 5,000 : $1.04805 Tape & Reel (TR)	NANO²® 451	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Surface Mount	Board Mount (Cartridge Style Excluded)	250 mA	125 V	125 V	Fast Blow	2-SMD, Square End Block	50A	0.0158	CSA, UL	-55°C ~ 125°C	-	0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
0451.800MRL FUSE BRD MT 800MA 125VAC/VDC SMD Littelfuse Inc.	4,646 In Stock	1 : $2.87000 Cut Tape (CT) 1,000 : $1.15253 Tape & Reel (TR)	NANO²® 451	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Surface Mount	Board Mount (Cartridge Style Excluded)	800 mA	125 V	125 V	Fast Blow	2-SMD, Square End Block	50A	0.271	CSA, UL	-55°C ~ 125°C	-	0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
0451001.NRL FUSE BRD MNT 1A 125VAC/VDC 2SMD Littelfuse Inc.	4,000 In Stock	1 : $2.87000 Cut Tape (CT) 5,000 : $1.04805 Tape & Reel (TR)	NANO²® 451	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Surface Mount	Board Mount (Cartridge Style Excluded)	1 A	125 V	125 V	Fast Blow	2-SMD, Square End Block	50A	0.459	CSA, PSE, UL	-55°C ~ 125°C	-	0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
04511.25MRL FUSE BRD MT 1.25A 125VAC/VDC SMD Littelfuse Inc.	3,591 In Stock	1 : $2.87000 Cut Tape (CT) 1,000 : $1.15253 Tape & Reel (TR)	NANO²® 451	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Surface Mount	Board Mount (Cartridge Style Excluded)	1.25 A	125 V	125 V	Fast Blow	2-SMD, Square End Block	50A	0.664	CSA, PSE, UL	-55°C ~ 125°C	-	0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
0451005.NRL FUSE BRD MNT 5A 125VAC/VDC 2SMD Littelfuse Inc.	2,804 In Stock	1 : $2.87000 Cut Tape (CT) 5,000 : $1.04805 Tape & Reel (TR)	NANO²® 451	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Surface Mount	Board Mount (Cartridge Style Excluded)	5 A	125 V	125 V	Fast Blow	2-SMD, Square End Block	50A	5.566	CSA, PSE, UR	-55°C ~ 125°C	-	0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
0451.750MRL FUSE BRD MT 750MA 125VAC/VDC SMD Littelfuse Inc.	2,499 In Stock	1 : $2.87000 Cut Tape (CT) 1,000 : $1.15253 Tape & Reel (TR)	NANO²® 451	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Surface Mount	Board Mount (Cartridge Style Excluded)	750 mA	125 V	125 V	Fast Blow	2-SMD, Square End Block	50A	0.185	CSA, UL	-55°C ~ 125°C	-	0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
045101.6MRL FUSE BRD MNT 1.6A 125VAC/VDC SMD Littelfuse Inc.	1,911 In Stock	1 : $2.87000 Cut Tape (CT) 1,000 : $1.15253 Tape & Reel (TR)	NANO²® 451	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Surface Mount	Board Mount (Cartridge Style Excluded)	1.6 A	125 V	125 V	Fast Blow	2-SMD, Square End Block	50A	1.06	CSA, PSE, UL	-55°C ~ 125°C	-	0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)
0451.315MRL FUSE BRD MT 315MA 125VAC/VDC SMD Littelfuse Inc.	1,521 In Stock	1 : $2.87000 Cut Tape (CT) 1,000 : $1.15253 Tape & Reel (TR)	NANO²® 451	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Surface Mount	Board Mount (Cartridge Style Excluded)	315 mA	125 V	125 V	Fast Blow	2-SMD, Square End Block	50A	0.0311	CSA, UL	-55°C ~ 125°C	-	0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)

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A fuse is a device designed to stop current flow when it exceeds a certain limit (overcurrent protection). The devices works by creating an opening in a material situated between two end terminals. The material will melt (blow) from an increase in heat generated by the device as the current flow changes. The amount of time it takes the device to blow is often defined as fast or slow-blow.

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