The JK30-300 with PTC Resettable Fuses Through Hole RoHS is a high performance, cost effective, overcurrent protection element for smaller surface mount and throughhole applications. The resettable fuses are available in 300mA, 600mA, 1A, 2A and 3A current ratings. The fast acting PTC fuses allow for fast and reliable circuit protection. This fuse comes with RoHS compliant mounting holes as well as tin-lead plating for improved contact performance. It is manufactured by Jinrui Electronic Materials, a global leader in the electronic component industry.