0473005.MRT1

Response Time:	Slow
DC Cold Resistance:	0.0133 Ohms
Size / Dimension:	0.135" Dia x 0.280" L (3.43mm x 7.11mm)
Color:	--
Operating Temperature:	-55°C ~ 125°C
Approvals:	CSA, PSE, UR
Melting I²t:	54.8
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:	5A
Fuse Type:	Board Mount (Cartridge Style Excluded)
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Fuses

Introduction to MRT1 Fuse

The MRT1 (medium-range temperature fuse) is a fuse manufactured with a wire mesh that prevents short circuits due to current overload. It is designed to prevent current overloads and short circuits in automobiles, marine vessels, and other applications that require high-current protection. The MRT1 is available in various sizes and ratings. The most common sizes are 3/8”, ½”, and ¾”.

Application Field of MR1 Fuse

The MRT1 fuse is used in a wide variety of applications, from residential homes to commercial installations to large industrial plants. The MRT1 is commonly used in circuit panels, fuse boxes, fire alarms, automotive vehicles, marine vessels, and a variety of other applications that require current overload protection.

Working Principle of MR1 Fuse

The MRT1 fuse works by connecting to the load—the device or application protected by the fuse—and allowing a normal amount of current to pass through it. When the voltage of the load exceeds the rated fuse voltage, the wire mesh inside the fuse will heat up, eventually melting the fuse and breaking the connection. This will not only protect the load but also protect all the components connected to it.

Advantages and Disadvantages of MR1 Fuse

The MRT1’s advantages include a simple and inexpensive installation, as well as the ability to protect a wide variety of circuits and large applications. It is also resistant to overheating, can handle short-term power surges, and is UL listed.On the other hand, the MRT1 also has some drawbacks. It is susceptible to corrosion if installed in a damp environment and is not suitable for use with high-voltage applications. The fuse must also be replaced regularly to maintain its effectiveness, and it is limited to the voltage ratings it can handle.

Conclusion

The MRT1 fuse provides an important function in protecting electrical circuits and other applications from damage due to an overload of current. Its wide variety of ratings makes it suitable for use in a variety of applications, from residential homes to large industrial plants. Even with its drawbacks, the MRT1 remains an effective solution for current overload protection and is an important component in many electrical systems.

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