The PVT312PBF is a HEXFET? Power MOSFET Photovoltaic Relay with SPST-NO contact, no current limit and through hole terminals. This PVT312-series relay features linear AC/DC operation. It utilizes international rectifier's proprietary HEXFET power MOSFET as the output switch, driven by an integrated circuit photovoltaic generator of novel construction. The output switch is controlled by radiation from a GaAlAs light emitting diode (LED) which is optically isolated from the photovoltaic generator.