The MOC3053M is a two-way thyristor optocoupler manufactured by Youtai with signal output and ROHS compliance. It has a maximum voltage rating of 5000V and a current rating of 100 mA. Its peak surge current rating is 600V, 1000V/µs, and its on-state voltage is 1.18V. It comes in a DIP-6 package and can operate in a temperature range of -55ºC to +100ºC.