RXE300

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

• Introduction

  PTC resettable fuses are self-resetting polymeric positive temperature coefficient (PPTC) devices that contain one or more elements placed in series with a positive temperature coefficient conductor. This PPTC element slowly increases in resistance as current flows through it, eventually tripping and opening the circuit to prevent damage to the system. Compared with other current-limiting components, such as fuses, PTC resettable fuses are more reliable and do not need to be replaced after a fault has occurred. This means they are widely used in portable electronics, automotive electronics, medical devices, appliances, and industrial electronics applications.

• RXE300 application fields

  The RXE300 series PTC resettable fuses are designed to protect portable electronic devices from overcurrent, overvoltage, short-circuits, and other transient surge events. They are suitable for use in applications such as personal computers, mobile phones, PDAs, AC adapters, game consoles, MP3 players, cameras, telecommunication devices, and other consumer electronic devices. The RXE series can also be used in automotive electrical systems, battery backups, medical devices, heating/cooling/ventilation systems, motor control systems, and industrial electronics.

• RXE300 working principle

  The RXE300 series PTC resettable fuses are composed of a dielectric material and a pair of metal contacts. The contacts are connected to the PPTC element inside the fuse, and then connected to the circuit. When the current through the PPTC element rises to a certain threshold, the PPTC element starts to rise in temperature and gradually increase in resistance. This change in resistance causes an increase in the voltage drop across the fuse and, if the current remains high, a thermal runaway will eventually cause the fuse to open. With this mechanism, the RXE300 can detect and trip, thus protecting the connected equipment from damage.

• Conclusion

  The RXE300 series PTC resettable fuses offer a reliable and economic solution to overcurrent and overvoltage protection in a wide range of applications. With their superior performance and durability, these fuses can provide long-term protection for connected equipment, helping to reduce costs and reduce the risk of unscheduled downtime. Furthermore, their self-resetting capability means they do not need to be replaced after a fault has occurred, making them a cost-effective and reliable solution for overcurrent protection.

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