TRF250-145

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 are current limiting solutions that are capable of restricting the flow of electricity, along with providing their own internal protection against damaging surges and short-circuits. One such example of PTC resettable fuse technology is the TRF250-145 – which offers superior protection against excessive currents.

The TRF250-145 is a polymeric PTC (PPTC) resettable fuse that is designed to protect circuits from overcurrent situations. It is a RoHS compliant product, featuring a low resistance value and high tolerance of surge currents, making it ideal for a wide range of consumer and industrial applications. The device features an operating current range of 250mA to 1.45A, and a surge current rating of up to 45A.

The TRF250-145 offers superior protection from currents and surges, by automatically resetting itself after a short circuit or surge. It also includes an indicator LED that provides information when the device is tripped and is resetting itself. Additionally, the fuse is designed to safely dissipate power in overcurrent situations, ensuring the safety of both the user and applications.

The working principle of the TRF250-145 is based on a special PTC element, which has a very low resistance during normal operating conditions. When the current enters the PTC element, it generates heat, which is dissipated away from the fuse, allowing the fuse to operate at a pre-set temperature. When the current exceeds the pre-set temperature, the resistance of the PTC element increases significantly, creating a “Fuse Action” – where the heat generated by the element is no longer dissipated, causing the fuse to trip.

In addition, the TRF250-145 offers superior reliability and excellent protection against both over-currents and surges. The device also has a high tolerance of surge currents and is able to quickly reset itself after a fault, making it suitable for use in a range of applications such as consumer electronics, automotive, telecommunication, medical, lighting, and industrial control systems.

Given the high tolerance of surge currents, along with the superior protection from both currents and surges, the TRF250-145 is an ideal choice of protection for any electrical application. Not only does it offer outstanding protection from dangerous electrical current and surge situations, but also provides easy resetting capability, excellent reliability, and low resistance values.

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