The Vishay The TCMT110 series Optocoupler consist of a phototransistor optically coupled to a gallium arsenide infrared-emitting diode in a 4 pin package. The elements are mounted on one leadframe providing a fixed distance between input and output for highest safety requirements. It is low profile half pich package can be used in wide ambient temperature range. AC isolation test voltage 3750 VRMS
Low coupling capacitance of typical 0.3 pF
Low temperature coefficient of CTR