VOW135 & VOW136 Optocouplers Vishay Semiconductors VOW135 and VOW136 Optocouplers are 1MBd widebody optocouplers consisting of a GaAIAs infrared emitting diode, optically coupled with an integrated photodetector. An integral Faraday shield provides a high level of noise isolation as required by high power switching applications. Vishay Semiconductors VOW135 and VOW136 Optocouplers also feature a high level of isolation distance. The VOW135 and VOW 136 exhibit an external creepage distance of >,10mm and are ideal for applications with working voltages exceeding 1000V.