RUSBF250

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 have been designed as a reliable and cost-effective solution to the need for system protection on a variety of applications, ranging from consumer electronics to automotive. The RUSBF250 is an example of a PTC Resettable Fuse that has been designed for the automotive market. It is rated for a maximum current of 250A and a nominal holding current between 20A and 32A (depending on ambient temperature). The RUSBF250 is able to provide protection from over-current, short-circuits, and overloads.

The RUSBF250 is a highly reliable device designed to protect automotive electrical systems from possible short-circuits and other hazardous events. It is a polyester-containing thermally actuated PTC Resettable Fuse (Polyswitch Resettable Series 250). It has a one-piece construction with no moving parts and a very low resistance of 0.13 ohms which helps to reduce power loss. It is a "current-sensing" device; when the load current rises above its calibrated trip point, an internal thermal actuation mechanism is activated, and the fuse "trips" open, breaking the circuit and preventing further damage to the system.

The RUSBF250 is suitable for use in many different automotive applications, including engine control systems, battery management systems, DC/DC and AC/DC converters, starter motors, alternators, communication systems, and power steering. It is also commonly used in automotive diagnostic equipment and radios, and can even be used in aerospace applications.

The working principle of the RUSBF250 is quite simple. It combines two elements: a resistive element, and a thermally-actuated switching element. The resistive element reduces the current and dissipates it as heat, while the thermally-actuated switch interrupts the circuit if the current reaches or exceeds the calibrated trip point, thus preventing the further current flow. When the current drops below the set trip point, the switch re-engages and restores the circuit. This allows the fuse to "reset" and be used over and over again.

The RUSBF250 is an excellent and highly efficient solution to protecting automotive electrical systems. It is reliable, cost-effective and has a fast response time. It is an ideal choice for applications requiring short-circuit and overload protection. It is also very durable and can withstand multiple thermal cycles without compromising performance.

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