FNM-25

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

FNM-25 series electrical fuses are mini-type special-purpose fuses, widely used in electronic devices, instrumentation systems, communication equipment and other fields. This series of fuses has a small size and a wide range of applications. It is composed of a fuse element, a short-circuit shunt and an insulation shell. The interior is composed of a core tube and an auxiliary tube, and is filled with a low-melting-point alloy. It serves to control the current, protect the circuit and equipment, prevent excessive current from melting the element and causing an open circuit.

The FNM-25 series fuse has two main functions. First, when the current through the fuse exceeds the rated value of the fuse, the fuse element will melt due to the rise of temperature caused by Joule\'s heat, which will make the circuit disconnect and cut off the current. Second, after the fuse is cut off, the loss of current can be judged through the amount of melting of its element. This aids in diagnosing the circuit and judging the cause of a short circuit.

The FNM-25 fuses have some unique characteristics. The fusing capacity is relatively small, with a rated current of 0.3-2.5A or 0.3-1.25A under an ambient temperature of -55 to +125℃. The overload protection of the series is high, with its rated interrupting capacity taking up to 10In, allowing for more reliable protection. Its rated voltage is 32V with 10K temperature range, which has a high reactivity and can respond fast enough in a wider temperature range. The fuse element is made of high-quality metal and has good oxidation and corrosion resistance.

The working principle of the FNM-25 fuse is quite simple. Firstly, when the current in the circuit coming into the fuse exceeds the rated value, due to Joule\'s heat, the fuse element melts and separates the circuit, resulting in an open circuit. Then, the interior alloy of the fuse is melted and flows into the core tube. Finally, the short-circuit shunt tucked into the outer casing of the fuse completely blocks off the electric current, achieving the cutting-off goal.

In conclusion, the FNM-25 series fuses are able to provide reliable protection to the electronic devices and other systems. It has several advantages, such as overload protection, small size, oxidation and corrosion resistance, and a wide price range. Furthermore, they are easy to install and can be used to quickly detect and diagnose the causes of short circuits. The FNM-25 series fuses are prime solutions for industrial, residential and commercial applications.

The specific data is subject to PDF, and the above content is for reference