The BK250-180-SY with PTC Resettable Fuses Through Hole RoHS manufactured by Yageo is a resettable fuse designed for overcurrent protection of electronics. This fuse contains a polymeric positive temperature coefficient (PTC) component that triggers when overloaded, breaking the circuit and protecting the circuit from damage. This PTC material then cools and self-resets, allowing the circuit to be reused. This fuse has a current rating of 250mA and a hold-current of 180mA with a voltage rating of 63V. It is available in a through hole mounting configuration and is RoHS compliant.