0473.500YRT1L

Response Time:	Slow
DC Cold Resistance:	1.13 Ohms
Size / Dimension:	0.135" Dia x 0.280" L (3.43mm x 7.11mm)
Color:	--
Operating Temperature:	-55°C ~ 125°C
Approvals:	CSA, UR
Melting I²t:	0.21
Breaking Capacity @ Rated Voltage:	50A
Mounting Type:	Through Hole
Package / Case:	Axial
Series:	PICO® II 473
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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Fuses Overview

A fuse is an electrical device that can stop electric current in the event of a power surge, overload, or short circuit. Fuses offer a simple and effective way to protect electrical circuits and devices from damage due to an overcurrent or excessive voltage. Fuses have various types and sizes, and are selected according to the operating specifications of the application in question. For instance, some fuses are designed and used to protect electrical appliances such as household refrigerators, air conditioners, and washing machines.

0473.500YRT1L Fuse Application Field and Working Principle

The 0473.500YRT1L fuse is a type of fast-acting fuse designed for medium-to-high voltage protection. It can be used in both AC and DC circuits and is ideal for situations where a medium or high voltage current inrush could cause circuit damage. This fuse features two different time delay characteristics; a 0.3 second delay for overcurrent faults and a 10 second delay for short circuit faults.The 0473.500YRT1L fuse features an arc-suppression shield design to prevent arcing between the fuse elements and the terminals. The fuse\'s components are isolated from each other, which helps to reduce arc energy. The fuse opens quickly to protect the equipment from damages caused by a power surge or short circuit.

How 0473.500YRT1L Fuse Works

The 0473.500YRT1L fuse works in two stages; the first stage is when an abnormally high current flows through the device, and the second stage occurs when a short circuit is detected. In the first stage, the primary element of the fuse melts. This melts the metallic parts of the primary element such as copper or tin, releasing a predetermined amount of energy. The energy is conducted away from the fuse, reducing the current to a normal level.In the second stage, the arc suppression shield pushes against the primary element. This creates a spring force among the two elements. The spring force increases as the resistance of the circuit decreases. As the circuit gets overloaded, the force increases, and as a result the primary element melts quickly and the fuse opens, isolating the circuit from the power source.The 0473.500YRT1L fuse\'s features and design allow it to provide quick protection from power surges or short circuit situations, while ultimately not allowing too much voltage to damage the system. This makes it an ideal choice for residential, commercial, and industrial applications.

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