The JK30-900 with PTC Fuse DIP RoHS is a through-hole component manufactured by Yenji. It has an installed temperature rating of 30 degrees Celsius, a current rating of 900mA, and has RoHS (Restriction of Hazardous Substances) certification, meaning that it has passed safety tests and is acceptable for use in electronic parts. It also features an on-board PTC (positive temperature coefficient) fuse to protect against overloads and other electrical faults. This part is ideal for consumer electronics designs requiring a reliable, durable, and RoHS-compliant component.