250R120TZR

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

PTC Resettable Fuses, coded 250R120TZR, are a type of self-resetting polymeric positive temperature coefficient fuse. They are designed to protect circuits and equipment during over-current incidents such as short circuits, overload and other transient scenarios. This article will discuss the application fields and working principles of 250R120TZR PTC Resettable Fuses.

250R120TZR PTC resettable fuses have a wide range of application fields, ranging from industrial, commercial, medical and automotive markets. They are used in applications such as electric devices, power control systems, automotive electronics, communication systems, UPS systems, autonomous devices, flat panel displays, and more. In particular, the automotive industry has seen a surge in the use of the 250R120TZR PTC Resettable Fuse. This is in part due to its compact size and high current rating of 20A.

The 250R120TZR PTC resettable fuse works by providing short-circuit protection and current limiting. They are constructed with a polymeric matrix which is filled with metal oxide particles. When the current passes through the matrix, the particles are heated, rendering them conductive and allowing current to flow. When the current exceeds the rating of the fuse, the particles heat up and swell due to thermal expansion, forming a conductive path which resists further current flow. This serves to limit the current flowing through the circuit and protect the devices connected to it.

At the same time, the matrix is designed in such a way that when the circuit is powered down, the swollen particles revert back to their original state, allowing current to flow freely again. This ‘self-resetting’ feature is what makes PTC resettable fuses unique; they can ‘trip’ and recover without needing to be replaced. This eliminates the downtime and costs associated with replacing fuses in the event of a short-circuit or overload.

The 250R120TZR PTC Resettable Fuse provides a number of benefits. It is constructed in a small package, allowing it to fit in tight places. It has a high 20A current rating, making it perfect for high-power applications. It has a ‘self-resetting’ feature which makes it more reliable and cost-effective. It provides over-current protection without needing to be replaced, and it has a long operating life.

The 250R120TZR PTC Resettable Fuse is an ideal choice for a variety of applications, from industrial, commercial, medical and automotive. It has a high current rating of 20A and works by providing short-circuit protection and current limiting. The ‘self-resetting’ feature makes the fuse more reliable and cost-effective, preventing the downtime and costs associated with replacing fuses. Overall, the 250R120TZR PTC Resettable Fuse is an ideal choice for providing reliable over-current protection.

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