The TS112 Multifunction Telecom switch combines a 350V Form A relay and an optocoupler in a single package. The relay uses optically coupled MOSFET technology to provide 1500V of input to output isolation. The efficient MOSFET switch and photovoltaic die use Clare's patented OptoMOS architecture. The optically coupled input uses highly efficient GaAIAs infrared LEDs. TS112N allows telecom circuit designers to combine two discrete functions, such as hook switch and ring detect, in a single component. The TS112's small package uses less space than traditional discrete component solutions.