Series:	*
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Mounting Type:	Holder
Package / Case:	Fuse Link
Size / Dimension:	2.992" Dia x 15.866" L (76.00mm x 403.00mm)

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7.2WFNHO125 Application Field and Working Principle

Introduction

The 7.2WFNHO125 is a specialty fuse developed by Amphenol Advanced Sensors. It is a perfect choice for most of demanding high current protection applications. This type of fuses offers designers great flexibility in their designs without compromising on performance, safety, or reliability. The 7.2WFNHO125 is also a cost effective solution for protecting multiple circuits in multiple applications.

Electrical Specialty Fuses

Electrical specialty fuses, also known as “smart fuses”, are a relatively new safety and control device that combines the functions of both a traditional fuse and a circuit breaker. These fuses are designed to mimic the function of a regular fuse while providing additional protection against over-currents, overvoltage, transient current surges, and other potentially dangerous conditions. The protection provided by electrical specialty fuses is tailored to the individual device, application, and environment. The 7.2WFNHO125, a Radial Lead Type fuse, is equipped with a 10.5A time-delay fuse element and is recommended for EMI filtering and high-current protection. The 7.2WFNHO125 has a maximum operating current of 10. with a pulse-withstand current rating of up to 50A.

Applications

The 7.2WFNHO125 is ideal for use in a variety of applications, ranging from industrial to automotive to consumer electronics. The fuse is an ideal choice for protecting sensitive equipment such as microcontrollers, power supplies, and other high current applications.In automotive applications, the 7.2WFNHO125 fuse is used for EMI filtering and high-current protection. It is suitable for engine control units, battery management systems, engine start/stop systems, and air-conditioning systems that require high current protection.In consumer electronics, the 7.2WFNHO125 fuse is highly suitable for use in cell phones, laptops, chargers, cameras, and other types of portable electronic devices. This fuse is compatible with most modern device standards for EMI and surge protection.

Working Principle

In order to understand how the 7.2WFNHO125 works, we must first learn how a fuse works in general. A fuse is essentially a piece of wire, usually made of either copper or silver, which is placed between two ends of an electrical circuit. When an electric current passes through the fuse, it generates heat. If the current is too high, the heat generated exceeds the fuse’s melting point and it melts, breaking the circuit and cutting off the flow of electricity.The 7.2WFNHO125 is a 10.5A time-delay fuse, meaning that it has a delayed reaction to higher-than-normal currents. This delay allows for current passes for pulses which could otherwise cause undesirable results if they passed through a traditional fuse.The 7.2WFNHO125 is further distinguished by its ability to self-restore, meaning that after the fuse has opened due to an over-current, the fuse will reset itself and conduct current again once the over-current condition is removed.

Conclusion

Renowned for its reliability and cost-effectiveness, the 7.2WFNHO125 is a great choice for high-current protection and EMI filtering. It is suitable for use in a variety of applications, from automotive to consumer electronics, and its unique time-delay-and-reset feature make it well suited for more complex electrical systems. In addition, its UL approved design ensures the utmost safety and performance in any system.

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