RHEF900

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 growing in popularity in many industrial and consumer applications. This article will explain the RHEF900 application field and working principle of these devices.

PTC resettable fuses normally consist of a special thermistor material that has resistive properties. The thermistor is configured such that if an overcurrent condition is present, it will experience an increase in temperature which will cause an increase in resistance. An associated decision circuit will detect this increase in resistance and actuate a switch which will effectively open the circuit to remove the current. Once the current is removed, the thermistor will cool to its normal temperature and the device will resume its normal electrical behavior.

The RHEF900 model of resettable fuse is popular in applications requiring power and current protection. This model has a low resistance value of 9Ω and is ideal for providing overload protection on DC motors in regular or frequent operation. It can be used with a wide range of AC and DC motors in both industrial and consumer applications.

This model of resettable fuse is also widely used in microcomputer systems, telecommunications equipment, electronic power supplies and AC/DC adapters. It can be used in low voltage, low current applications. It is designed to protect the circuit from overcurrent, overvoltage, and short circuit conditions. It also provides reverse voltage protection.

The working principle of the RHEF900 resettable fuse is simple. When an overload or short-circuit condition occurs, the fuse will detect this and reduce the current flow through the circuit. This causes a decrease in temperature of the fuse which in turn increases the resistance of the fuse. This increase in resistance is detected by the decision circuit, which then triggers the switch that opens the circuit, breaking the current flow. When the overload condition is removed, the thermistor will cool down to its normal temperature and the device will resume its normal electrical behavior.

The RHEF900 is an excellent choice for protecting circuits from overcurrent or short-circuit conditions. It is a highly reliable and cost-effective solution, making it a popular choice for many applications. The device is designed to be reliable and to provide maximum protection to the circuit with minimal interference.

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