0476002.MR

DC Cold Resistance:	0.0448 Ohms
Series:	NANO²®476
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Fuse Type:	Board Mount (Cartridge Style Excluded)
Current Rating:	2A
Voltage Rating - AC:	250V
Voltage Rating - DC:	125V
Response Time:	Fast
Package / Case:	2-SMD, Square End Block
Mounting Type:	Surface Mount
Breaking Capacity @ Rated Voltage:	100A AC, 300A DC
Melting I²t:	0.53
Approvals:	cURus
Operating Temperature:	-55°C ~ 125°C
Color:	--
Size / Dimension:	0.240" L x 0.106" W x 0.106" H (6.10mm x 2.69mm x 2.69mm)

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FusesFuses play a key role in circuit protection. Specifically, the 0476002.MR type is an auto resetting fuse that performs well in automotive and other vehicle applications. This article will provide an overview of the 0476002.MR fuse’s application fields and working principle.Application FieldsThe 0476002.MR fuse is characterized by an extremely low profile size. This makes it ideal for space-constricted automotive applications. Examples include door locks, instrument clusters, lighting and audio systems, and gages. Additionally, the 0476002.MR fuse can be used in applications where extreme vibration is present. The fuse is UL recognized, allowing it to be widely utilized in a variety of markets. These include HVAC applications, consumer products, communication systems, power supplies, industrial electronics, and more.Working PrincipleThe 0476002.MR fuse operates using a resistor element with a volatile coating. Upon application of excessive current to the circuit, the level of heat generated by the current will increase, causing the volatile coating to evaporate, turning it into a gas. As the gas pressure builds up around the resistor element, it deforms and becomes ineffective. This in effect disconnects the circuit and reduces the current flow until the problematic condition is resolved, returning the circuit to its intended purpose. Once power is removed, the volatile coating will reform back to its original powder state, allowing the resistor element to reform and restore operation. This process is much faster than the classical type fuse, which requires physical intervention to reset.ConclusionThe 0476002.MR fuse has tremendous utility in automotive and other vehicle applications. Its low profile size and UL recognition make it a popular choice for space-constricted and vibration-rich environments. It works using a resistor element with a volatile coating that deforms and breaks the circuit when an overly high current is applied. Once power is removed, the volatile coating reforms, allowing power to be restored to the circuit. With its performance and wide range of applications, the 0476002.MR fuse is an excellent choice for circuit protection.

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