The JK30-110 with PTC Resettable Fuses Through Hole RoHS is a miniaturized surface mount electronic fuse manufactured by Jinrui Electronic Materials. It has a small footprint that makes it suitable for space-constrained applications, such as consumer electronics, telecommunications equipment, and industrial applications. The JK30-110 features robust over current protection, low operating temperature, and over voltage protection. It also has an RoHS compliant halogen-free design, which makes it more environmentally friendly than traditional fuses. The fuse also has an internal PTC (positive temperature coefficient) element that automatically resets itself after a power interruption. This ensures that the device is ready to go once the power is restored.