0230.750DRT3W

Package / Case:	Cartridge, Non-Standard (Axial)
DC Cold Resistance:	0.34 Ohms
Size / Dimension:	0.177" Dia x 0.571" L (4.50mm x 14.50mm)
Color:	--
Operating Temperature:	-55°C ~ 125°C
Approvals:	CSA, UL
Melting I²t:	2.95
Breaking Capacity @ Rated Voltage:	35A
Mounting Type:	Through Hole
Series:	230
Response Time:	Slow
Voltage Rating - AC:	250V
Current Rating:	750mA
Fuse Type:	Cartridge, Glass
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Fuses: 0203.750DRT3W Application Field and Working Principle

Fuses are devices that can protect an electrical system from overloading or short-circuiting. The 0203.750DRT3W is an example of such an important device. This article will look at its application field, as well as its working principle.

Application Field

The 0203.750DRT3W, sometimes referred to as a DTRT3W fuse, is primarily used for circuit protection in house circuit applications. It has AC and DC ratings of 245VAC and 250VDC. The DTRT3W is rated to interrupt high current loads up to 14 Amps and direct current loads up to 32 Amps. It has a wide variety of applications, from residential homes, to commercial applications and industrial layouts.

Working Principle

The 0203.750DRT3W fuse works on a straightforward principle. It contains a small piece of metal wire or a thin strip of metal that serves as the fuse element. If the current running through the fuse element exceeds its rating, the element will heat up until eventually melting, causing an interruption in the circuit. Then, the element will need to be replaced.It is important to note that the fuse\'s current rating should not be exceeded. Doing so can damage the fuse, the circuit, or both. Additionally, the safety features of the fuse kicking in should not be relied upon alone. It is best to include proper overload protection measures to accompany the fuse for optimal safety.

Conclusion

The 0203.750DRT3W is a type of fuse used for the protection of house-style circuits. It has a variety of AC and DC ratings, and is capable of interrupting high current loads up to 14 Amps and direct current loads up to 32 Amps. Its working principle is simple: when current passing through it exceeds the rating, a piece of metal melts, interrupting the circuit. Although the use of a fuse provides a decent level of safety, it should not be used as the primary means of protection and should be accompanied by other measures.

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