Response Time:	Slow
DC Cold Resistance:	1.19 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:	0.21
Breaking Capacity @ Rated Voltage:	50A
Mounting Type:	Surface Mount
Package / Case:	2-SMD, J-Lead
Series:	PICO® 460
Voltage Rating - DC:	125V
Voltage Rating - AC:	125V
Current Rating:	500mA
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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0460.500ER Application Field and Working Principle

Introduction

Fuses are safety components that are widely used in electrical engineering. Among all kinds of fuses, 0460.500ER is a type of fuse which is commonly used in many applications. In this article, we will introduce the application field and working principle of 0460.500ER.

Application Field

0460.500ER is a semi-enclosed fuse which is suitable for the power supply system of equipment, instruments and power controlling circuit. It is most commonly used in low voltage distribution networks, general purpose power distribution circuits, low voltage traction and signal circuits. Its main function is to protect the circuit from damage caused by the overcurrent, and avoid the fire caused by the short circuit of the circuit.

Working Principle

0460.500ER is a thermoelectric current-limiting fuse, the working principle of the fuse is that when the current passing through exceeds its rated current value, it will rely on its special structure and fuse element to quickly activate the automation protection circuit and break it, thus cutting off the current to avoid the risks caused by the overheated and overcurrent.The thermal fuse is made of high quality tin-copper alloy. It is made into a hinged strip that can be electrically connected to both the lugs of the fuse and then sealed. When the flow of the electric current exceeds the rated current value, the temperature of the fuse strip rises rapidly, and when the temperature reaches a certain degree, the fuse strip will be melted and disconnect the circuit, thus breaking the current and protecting the circuit.The fuse element of the 0460.500ER consists of a pair of terminal plates, a pair of connecting pieces and a hinge. The two terminal plates are placed at both ends of the fuse, and each plate has a predefined connecting piece, which makes the contact of the terminal plates and the connecting pieces tightly connected when the two terminal plates are rotated around the hinge.

Conclusion

0460.500ER is a semi-enclosed fuse which is suitable for the power supply system of equipment, instruments and power controlling circuit. It is most commonly used for low voltage distribution networks, general purpose power distribution circuits and low voltage traction and signal circuits. The working principle of the fuse is relying on the special structure and the fuse element to quickly activate the automation protection circuit, and cut off current when the current passing through exceeds its rated current value.

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