The JK250-1000U is an electronic part manufactured by Jinrui Electronic Materials and it features a PTC Resettable Fuses Through Hole with a P=5.1mm dimension as well as RoHS certification. This part is a reliable and efficient resettable fuse designed for protecting circuits against overcurrent faults and short circuits, providing greater protection and safety than a traditional fuse. In addition, the PTC Resettable Fuses design helps reduce downtime, cost, and environmental impact, allowing for cost-effective use in various applications.