0001.2709.22

Response Time:	Slow
Size / Dimension:	0.205" Dia x 0.787" L (5.20mm x 20.00mm)
Color:	--
Operating Temperature:	-55°C ~ 125°C
Approvals:	CCC, cURus, VDE
Melting I²t:	33.7
Breaking Capacity @ Rated Voltage:	1.5kA
Mounting Type:	Holder
Package / Case:	5mm x 20mm
Series:	SMD-SPT
Voltage Rating - DC:	300V
Voltage Rating - AC:	250V
Current Rating:	3.15A
Fuse Type:	Cartridge, Ceramic
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction

Fuses are electrical and electronic devices used in many industries to protect electrical circuits from overloads, shorts, and other faults. Fuses interrupt the flow of electricity when current passes through them in excess of their rated safe currents. In most applications, a system of fuses is used along with circuit breakers, switches, transformers, and other components to ensure a safe and orderly flow of electricity.

Application Field

Fuses are found in virtually all manufacturing and industrial processes, including household appliances, computers, and automobiles. They are used in residential homes, commercial businesses, energy production, medical equipment, computers, telecommunications systems and many other devices and applications.Fuses provide protection from short circuits, over-current, over-temperature, and over-pressure conditions in circuits with low voltage and relatively low-current circuits. They can also be used in high-power applications, such as solar panel installations, where fault currents may be up to several kilowatts.

Working Principle

When a fuse is triggered, components in the device react to the excess current. A bimetallic element or resistor in the fuse element heats up and bends or melts, creating a break in the flow of current. This interrupts the circuit, preventing the further buildup of electrical energy and any resulting dangerous electrical surges.The ability of a fuse to protect an electrical circuit depends upon its current rating and its characteristics. Current ratings are determined based on the type of circuit and the amount of current that can flow through it without producing dangerous conditions. The time it takes for a fuse to respond to an overload or other fault is also an important factor. This is known as the "time-delay rating" and is expressed in milliseconds.

Conclusion

Fuses are reliable, cost-effective, and easily maintainable devices for protecting a wide range of electrical and electronic systems. With the right combination of fuse characteristics and ratings, it is possible to provide protection against short circuits, over-currents, and other dangerous conditions in any circuit or system. The right selection of fuse type and size can help ensure the safety of personnel and equipment and can extend the life of expensive and important components.

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Part Number	Manufacturer	Price	Quantity	Description