MF-LR450

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 widely used in various types of current breaking and protection applications. The MF-LR450 is a polymeric positive temperature coefficient (PPTC) resettable fuse designed for higher-current applications. It offers superior performance compared to traditional methods of protection by providing quick response, wide operating temperature range, and low resistance.

The MF-LR450 consists primarily of a metal oxide polymer film that is encased in a casing, with a thermistor being embedded to act as a thermal monitor. The thermistor is connected to a thin film resistor, which acts as an impedance. When the current in the circuit exceeds the rating of the device, the temperature begins to rise, causing the thermistor to detect the temperature and in turn, limiting the current by providing a higher impedance to the circuit.

In order to protect the device from redundant trips and allow for a self-reset, a heat dissipating mechanism is embedded in the casing, allowing it to cool down after an overcurrent event has passed. Once the temperature has returned to an acceptable level, the device resets and current can once again continue to flow.

The MF-LR450 is a high performing and cost-efficient alternative to traditional protection methods, offering many benefits such as high current ratings, wide temperature ranges, low resistance and small board footprints. It is also used in power strips, instrumentation, computers, control systems, lighting applications and medical equipment.

In addition to its self-resetting protection capabilities, the MF-LR450 is also designed to withstand harsh environmental conditions, making it suitable for outdoor use in hot or cold climates. It is also UL approved, meeting the standards for safety under overcurrent and short circuit conditions.

In summary, the MF-LR450 is an advanced resettable polymeric fuse designed for high current applications and harsh environmental conditions. It offers a wide range of protection features, and is both UL and cost-effective. Thus, making it an ideal product for many types of current protections, especially in outdoor applications.

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