The R30-090 manufactured by TECHFUSE is a Radial Leaded Resettable Fuse with 30V, 900mA, 40A, 600mW, 1.8A, 70mO, 5.9s, and 220mO ratings and is RoHS compliant. It can be used to protect electrical circuitry from sudden power fluctuations or overloads. The fuse is designed to trip and reset automatically at a pre-defined voltage and current, providing an effective and convenient form of protection from electrical malfunction or short-circuits.