0459002.UR

Response Time:	Fast
DC Cold Resistance:	0.0468 Ohms
Size / Dimension:	0.285" L x 0.170" W x 0.120" H (7.24mm x 4.32mm x 3.05mm)
Color:	--
Operating Temperature:	-55°C ~ 125°C
Approvals:	CSA, UL
Melting I²t:	0.421
Breaking Capacity @ Rated Voltage:	50A AC, 300A DC
Mounting Type:	Surface Mount
Package / Case:	2-SMD, J-Lead
Series:	PICO® 459
Voltage Rating - DC:	125V
Voltage Rating - AC:	125V
Current Rating:	2A
Fuse Type:	Board Mount (Cartridge Style Excluded)
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction on Fuses Fuses are important protection components for industrial, commercial, and residential electrical networks. They are responsible for disconnecting the electrical current on the circuit when the current exceeds the predetermined value. This prevents the circuit from being damaged due to a fault. Fuses come in a variety of forms and their applications and working principles vary according to the form they are in. 0459002.UR fuses are one such type, and this article will discuss its application field and working principle. Application Field of 0459002.UR Fuse0459002.UR fuses are forms of low-voltage fuses, and as such, they are most commonly used in electrical systems operating at low voltage. These systems are typically found in industrial, commercial, or residential applications which require low voltage control. For instance, the fuses can be used on an internal machinery installation, or in a lighting system. They are commonly found in motor control systems, factory automation equipment, and household appliances. Working Principle of 0459002.UR FuseThe working principle of 0459002.UR fuses is simple but effective. They are made from a metal alloy, which has a much higher melting point than any of the components which it protects. When the circuit current passes through the fuse, it is designed in such a way that some of the heater circuit current flows through the tapered metal disc of the fuse. This heating causes the disc to melt and open the circuit, allowing the excess current to escape and prevent any damage to the circuit components.The melting disc provides an arc and, coupled with the rapid expansion of the metal of the disc, ensures that the circuit is opened quickly and efficiently. This rapid opening of the circuit further ensures that the electric arc is quickly extinguished, while at the same time, ensuring that the switches in the circuit do not become damaged.ConclusionIn conclusion, 0459002.UR fuses are low-voltage fuses which are typically used in motor control systems, factory automation equipment, and household appliances. They work by passing the circuit current through a metal disc which melts when it has exceeded the predetermined value, allowing the excess current to escape. This prevents any damage to the circuit components and ensures that the electric arc is quickly extinguished.

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