The SFI0603-240E2R5PP-LF is a 0603 surface-mount transient voltage suppressor (TVS) manufactured by SFI. It is designed for the protection of sensitive electronic components from induced voltage spikes, and is ROHS compliant, meaning that it does not contain any hazardous substances. It is capable of withstanding up to 240 volts of surge energy and is rated for a 5-pulse clamping voltage of 2.5 volts.