The LH1546AEFTR is a Solid State Relay with SPST-NO contact and surface-mount terminals. This 1-form-A relay is constructed using GaAs LED for actuation control and MOSFETs for the switch output. It employs current-limiting circuitry which meets lightning surge testing as per ANSI/TIA-968-B and other regulatory voltage surge requirements when overvoltage protection is provided.