SF-0402FP400-2

Response Time:	Fast
Size / Dimension:	0.039" L x 0.020" W x 0.014" H (1.00mm x 0.52mm x 0.35mm)
Color:	--
Operating Temperature:	-20°C ~ 150°C
Approvals:	UL
Melting I²t:	0.0896
Breaking Capacity @ Rated Voltage:	35A
Mounting Type:	Surface Mount
Package / Case:	0402 (1005 Metric)
Series:	SinglFuse™ SF-0402FP
Voltage Rating - DC:	32V
Current Rating:	4A
Fuse Type:	Board Mount (Cartridge Style Excluded)
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
RoHS Status:	RoHS Compliant
Packaging:	Tape & Reel (TR)

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SF-0402FP400-2 Application Field and Working Principle

Fuses are electrical devices designed to limit the amount of current that passes through a circuit. They’re also designed to prevent power surges or spikes from damaging sensitive equipment. SF-0402FP400-2 fuses are a type of surface-mount fuse specifically designed for applications dealing with high current levels. Here, we’ll go over the application field and working principles of these fuses.

Application Field

SF-0402FP400-2 fuses have a variety of applications. They’re most commonly used in power supplies, where they limit the amount of current that flows through the circuit. They’re also used in audio equipment, telecommunication devices, commercial and industrial lighting, and various other items.The primary benefits of using SF-0402FP400-2 fuses in these applications are their high-current carrying capacity, small size, fast response to fault conditions, and reliable protection of sensitive components. These fuses are smal enough to be used in tight spaces, making them an ideal choice for device designers.

Working Principle

SF-0402FP400-2 fuses work by interrupting the electrical current flow when the current exceeds the fuse’s rated value. These fuses are designed to allow a predetermined amount of current to pass through the circuit without tripping.They’re equipped with a metal strip that acts as a conductor. Once the current reaches the rated level, the metal strip will expand in size, increasing the amount of current flowing through the circuit, generating heat. This heat melts the metal strip and triggers the fuse’s tripping mechanism, cutting off the power.Once the fault has been removed, the old fuse can be replaced with a new one. SF-0402FP400-2 fuses are designed to be easy to replace, and come in a wide variety of sizes and current capacities.

Conclusion

SF-0402FP400-2 fuses are a type of surface-mount fuse specifically designed for high-current applications. They offer a number of benefits, including a high-current carrying capacity, small size, fast response to fault conditions, and reliable protection of sensitive components. The working principle of these fuses involves a metal strip expanding when the current reaches the rated level, triggering the fuse’s tripping mechanism.

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