FSR420F THERMISTOR PTC RESETTABLE FUSE FSR 4200mA 30V The FSR420F, manufactured by FUZETEC, is a high-performance PTC resettable fuse designed for thermistor ptc resettable fuse fsr 4200ma 30v. It offers reliable overcurrent protection with a maximum voltage rating of 30V. The fuse features a trip time of 6s, ensuring fast response to overcurrent events. Its compact dimensions of 31.50mm x 13.25mm x 0.80mm allow for easy integration into various applications. Operating within a temperature range of -40°C~+85°C, it performs reliably in diverse environments. As a rohs-compliant product, it meets stringent environmental and safety standards. Packaged in bag format, it ensures secure handling and storage. With its robust design and advanced features, the FSR420F is an excellent choice for professionals seeking reliable PTC fuse solutions.