The Bourns MF-RX Series PTC resettable fuses provide overcurrent protection for sensitive electronic circuits. These fuses automatically reset after a fault condition is cleared, minimizing downtime and preventing damage to connected components. They are suitable for applications such as security and fire alarm systems, loudspeakers, and power transformers. The MF-RX series is available in various voltage and current ratings, offering flexibility in circuit design. While not recommended for new designs, the MF-RX series remains a viable option for existing applications. Bourns follows the prevailing definition of “halogen free” in the industry.