TE Connectivity PolySwitch RXEF Radial 170mA

The TE Connectivity PolySwitch RXEF Radial 170mA is a high-quality resettable fuse designed to provide reliable overcurrent protection for electronic circuits. As a polymeric positive temperature coefficient (PPTC) device, it acts as a self-regulating thermistor, effectively tripping to protect sensitive components when an overcurrent condition occurs, and automatically resetting once the fault is cleared and the current returns to normal levels.

Featuring a through-hole mounting type, this radial fuse is straightforward to install on printed circuit boards, making it highly suitable for a wide range of electronics manufacturing and repair applications. The device has a holding current of 170mA and a trip current of 340mA, with a rapid time to trip of just 3 seconds at the maximum fault current. It is rated for a maximum voltage of 60VDC and can withstand a maximum current of up to 40A.

Designed to operate reliably in demanding environments, this PolySwitch functions effectively across a broad operating temperature range from -40°C to 85°C. Its round fuse shape and 5.8mm lead spacing ensure compatibility with standard board layouts. This robust component offers a practical and reusable solution for safeguarding circuitry against overcurrent faults without the need for replacement after a single trip event.