3404.2472.22 Circuit Protection

Response Time:	Fast
Size / Dimension:	0.445" L x 0.165" W x 0.157" H (11.30mm x 4.20mm x 4.00mm)
Color:	--
Operating Temperature:	-40°C ~ 85°C
Approvals:	cURus, VDE
Melting I²t:	9.4
Breaking Capacity @ Rated Voltage:	200A AC, 100A DC
Mounting Type:	Surface Mount
Package / Case:	2-SMD, Square End Block with Clip
Series:	UMK 250
Voltage Rating - DC:	125V
Voltage Rating - AC:	250V
Current Rating:	4A
Fuse Type:	Board Mount (Cartridge Style Excluded)
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction

Fuses are a type of electrical safety device that are widely used to prevent short circuits and interrupt the flow of electrical current. The 3404.2472.22 application field and working principle is a specific type of fuse that is designed for use in specific environmental conditions. Fuses have been used for over 100 years to increase the safety of electrical applications. This article will discuss the types of fuses used in electric applications and provide an in-depth look at the 3404.2472.22 application field and working principle.

Types of Fuses

There are various types of fuses available, ranging from units that use air to units that use a vacuum, or liquid, to operate. The types of fuses identified by UL standard are as follows: cartridge fuses, surface mount fuses, part-thru-hole, mini-snap-in-types, HRC fuses, rewireable fuses, and Auto-reset fuses. There are also a variety of other fuse types, including Flameproof Fuses, Time-Delay Fuses, High-Speed Fuses, and Surge Fuses. A discussion of each type of fuse is beyond the scope of this article; however, a brief overview of the different types of fuses is presented.
Cartridge fuses are cylindrical units that connect in-line with the current path and mechanically interrupt the flow of current when the fuse is overloaded with electricity. They are best used in high-current and low-voltage applications. Surface mount fuses are designed to be mounted directly onto printed circuit boards and are generally used for applications that require very small but low-current units. Part-thru-hole fuses are designed to be inserted into drilled holes in printed circuit boards and are usually used to protect sensitive components from over current or overvoltage conditions. Mini-snap-in-types are mixed signal or general purpose fuses that are very small and can be used in tight spaces. HRC fuses are designed for high-current-detection applications and can be used in higher-voltage applications, up to 690 volts AC. Rewireable Fuses are designed for quick replacement without the need of rewiring the entire circuit, and Auto-reset fuses are designed to automatically reset after a fault has cleared.

3400.2472.22 Application Field and Working Principle

The 3404.2472.22 Application Field and Working Principle is a type of surface mount fuse that is designed for use in extreme environmental conditions, including high shock, vibration, and temperature. It is best suited for applications that require a small, high-current unit. The 3404.2472.22 can support currents up to 18Amps and can handle temperature ranges from -40°C to +105°C.The 3404.2472.22 is composed of a ceramic body, a metal end-cap, and a copper wafer-shaped fuse element. The metal end-cap is designed to maximally absorb the shock and vibration associated with extreme environmental conditions and protect the fuse from breaking. The ceramic body provides the necessary insulation to protect the fuse from short-circuiting, while the copper wafer provides the current limiting functionality. The copper wafer is of particular importance, as it is designed to resist the current and heat, preventing sparks and other potential fire hazards.When the fuse is overloaded, the copper wafer melts, interrupting the current flow. However, after the current is interrupted, the fuse can be reset manually if the cause of the overload is removed. Alternatively, the 3404.2472.22 can be equipped with an auto-reset feature, allowing the fuse to reset automatically after the overloaded condition is cleared.

Advantages of 3404.2472.22 Fuses

The design of the 3404.2472.22 offer several advantages over other types of fuses, including a greater ability to withstand high levels of shock and vibration, superior temperature resistance, and a convenient auto-reset mechanism. Additionally, the 3404.2472.22 is very small and lightweight, making it ideal for applications that require a secure, low profile installation.

Conclusion

Fuses have been a dependable electrical safety device for over one hundred years, and the 3404.2472.22 application field and working principle has become increasingly popular due to its extreme environmental resistance and high-current protection. The 3404.2472.22 is a highly reliable option that offers a secure, low profile installation, superior protection from high levels of shock and vibration, and a temperature resistance level that far exceeds other types of fuses. Furthermore, the 3404.2472.22 is offered in a range of rated currents from 2A to 18A, making it an ideal solution for a wide range of applications.

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