043802.5WR

Series:	438
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Fuse Type:	Board Mount (Cartridge Style Excluded)
Current Rating:	2.5A
Voltage Rating - AC:	12V
Voltage Rating - DC:	32V
Response Time:	Fast
Package / Case:	0603 (1608 Metric)
Mounting Type:	Surface Mount
Breaking Capacity @ Rated Voltage:	50A
Melting I²t:	0.1977
Approvals:	CSA, UL
Operating Temperature:	-55°C ~ 150°C
Color:	--
Size / Dimension:	0.061" L x 0.033" W x 0.020" H (1.54mm x 0.85mm x 0.50mm)
DC Cold Resistance:	0.0324 Ohms

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Fuses

Introduction

A fuse is an electrical safety device, which when an excessive current flows through, either from a short circuit or overload, the element inside will melt or vaporize, opening the circuit and preventing further current flow. This is known as the ‘fusing action’. After a fuse blows, it must be replaced with an identical type or it will no longer be fit for purpose. Fuses are an important part of any circuit, as it provides protection from overloading or short circuiting the electrical circuit.

043 802.5WR Application Field and Working Principle

The 043 802.5WR is an industrial safety fuse designed for high-voltage applications, such as high-voltage power transformers, power supplies, motor controllers, etc. It has a working voltage of up to 690V, a current rating of 8A, and is UL listed.The 043 802.5WR has a glass-bulb body with silver-plated contacts. It is designed to create an electrical arc when it is overloaded. This arc helps to protect the system from damage by thermally melting the fuse element. The fuse contacts are designed to allow electricity to freely flow, but when an overload occurs, the heat of the arc causes the fuse contacts to expand and open the circuit. This prevents further electrical current from passing through and shuts off the power to the electrical system.The 043 802.5WR has a response time of just 300ms in normal conditions. This fast response time helps protect the electrical system by shutting off the power quickly before damage can occur.

Conclusion

The 043 802.5WR is a high-voltage fuse designed for industrial applications. It has a current rating of 8A and a working voltage of up to 690V. It is a glass-bulb body with silver-plated contacts and has a response time of 300ms to help protect the electrical system from damage. This fast response time ensures that power is shut off quickly, before the system can be damaged.

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Part Number	Manufacturer	Price	Quantity	Description