The Vishay ILD615 Optocoupler is multi-channel phototransistor optocouplers that use GaAs IRED emitters and high gain NPN phototransistors. These devices are constructed using over / under leadframe optical coupling and double molded insulation technology resulting a withstand test voltage of 7500 VACPEAK and a working voltage of 1700 VRMS. The binned min./max. and linear CTR characteristics make these devices well suited for DC or AC voltage detection. Eliminating the phototransistor base connection provides added electrical noise immunity from the transients found in many industrial control environments.Identical channel to channel footprintReduced board spaceLower pin and parts countBetter channel to channel CTR matchImproved common mode rejection