Series:	438A
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Fuse Type:	Board Mount (Cartridge Style Excluded)
Current Rating:	1.75A
Voltage Rating - AC:	32V
Voltage Rating - DC:	32V
Response Time:	Fast
Package / Case:	0603 (1608 Metric)
Mounting Type:	Surface Mount
Breaking Capacity @ Rated Voltage:	50A
Melting I²t:	0.144
Approvals:	CSA, UR
Operating Temperature:	-55°C ~ 150°C
Color:	--
Size / Dimension:	0.062" L x 0.033" W x 0.024" H (1.58mm x 0.85mm x 0.61mm)
DC Cold Resistance:	1.405 Ohms

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04381.75WRA Fuse Application Field and Working Principle

Fuses are widely used safety devices in electrical equipment such as transformers, motors, and electric switches. The 04381.75WRA Fuse is a Low Voltage Fuse, with a current rating of 2A, and is suitable for protecting small transformers, motors, circuit breakers, and other low voltage electrical equipment.

Application Field

The 04381.75WRA is a Low Voltage Fuse and is particularly suitable for use in low voltage applications, such as those found in medical and healthcare equipment. It is also suitable for use in small electrical equipment such as radios, tiny lights, small transformers, electric motors, and circuit breakers.

Working Principle

The primary function of a fuse is to protect the electrical system against severe overloads and short-circuits, by providing a low-resistance path for the overcurrent to flow and causing a circuit breaker to trip. The working principle of the 04381.75WRA Fuse is based on the melting of the fuse element when overloaded. When the current passing through the fuse element exceeds the rated current, the fuse element will heat up and melt, which will disrupt the electrical circuit and protect the device from further damage.

Design

The 04381.75WRA Fuse is a low voltage fuse and is designed in a cylindrical shape with a screw type end terminal to ensure quick and secure connection. The fuse body is made of ceramic and is filled with a heating element made of a metal alloy, typically tungsten, silver, or tin. The current rating of the heating element is marked at the top of the fuse.

Safety

The main benefit of using the 04381.75WRA Fuse is for overcurrent protection. Fuses are designed to prevent overloads and short-circuits and provide protection for the electrical equipment from damages caused by these events. For optimal safety, it is important to ensure that the fuse is the correct size and rating for the equipment in which it is being used.

Conclusion

The 04381.75WRA Fuse is a Low Voltage Fuse designed for use in small electrical equipment such as radios, tiny lights, small transformers, electric motors, and circuit breakers. The working principle of the fuse is based on the melting of the fuse element when overloaded, which protects the device from further damage. The fuse is cylindrical in shape with a screw type terminal for quick and secure connection. The main benefit of using the fuse is for overcurrent protection, and for optimal safety it is important to ensure that the fuse is the correct size for the equipment in which it is being used.

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Part Number	Manufacturer	Price	Quantity	Description