Package / Case:	Radial, Box
DC Cold Resistance:	0.05665 Ohms
Size / Dimension:	0.335" L x 0.157" W x 0.315" H (8.50mm x 4.00mm x 8.00mm)
Color:	--
Operating Temperature:	-40°C ~ 85°C
Approvals:	cUL, UL
Melting I²t:	0.38
Breaking Capacity @ Rated Voltage:	50A
Mounting Type:	Through Hole
Series:	TE5® 397
Response Time:	Slow
Voltage Rating - AC:	125V
Current Rating:	350mA
Fuse Type:	Board Mount (Cartridge Style Excluded)
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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What are Fuses and How Do They Work?

Introduction

A fuse is an electrical device designed to prevent the excessive current flowing through an electrical system. It is designed to break the circuit when too much current flows. This device is important as it is the last line of defence against potential electrical fires caused by overloaded circuits, short circuits, and similar dangerous conditions. Fuses come in a wide variety of shapes and sizes to suit different needs, from the smallest industrial applications to the largest commercial buildings.

Types of Fuses

There are two main types of fuses: the current and the voltage. Current fuses work by breaking the circuit when the current exceeds a certain level. Voltage fuses are triggered by an increase in voltage, which causes the fuse to break the circuit. These types of fuses are often used to protect electrical equipment from surges in electricity.

39703500440 Applications Field and Working Principle

The 39703500440 fuse is a current fuse. It is designed to work with a variety of electric wiring systems. It is most commonly used in interference filtering applications, such as in power supplies, and in cable assemblies, where it is used to protect against overvoltage and overcurrent conditions. It can also be used in industrial equipment, such as production machinery, and in residential applications, such as surge protectors.The working principle of the 39703500440 fuse is simple. When the current flowing through the fuse reaches a certain threshold, the fuse will begin to melt. This causes the metal strips within the fuse to separate, which results in the current being interrupted. This interruption prevents any further damage to the wiring system and eliminates the risk of an electrical fire.

Conclusion

Fuses are an important safety device, and the 39703500440 fuse is a reliable and cost-effective solution for electrical systems. This type of fuse is designed to detect overcurrent and overvoltage conditions and interrupt the circuit before a fire or other damage can occur. By installing a 39703500440 fuse in your electrical system, you can rest assured that your system is safe from potential overloads and surges in power.

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Part Number	Manufacturer	Price	Quantity	Description