K250R120 is a resettable fuse manufactured by Kailong with rated voltage of 220V, rated current of 0.12A, pulse current of 3A, power of 1W, over-current of 0.24A, temperature range from -40? to +85?, internal resistance of 8O, hold time of 15s, over recovery voltage of 18O, lead pitch of 5.1mm, and compliant with RoHS.