HCPL-J312-000E DC Input Transistor Output Optocoupler, Through Hole, 8-Pin DIP. The Avago Technologies optically isolated gate drive devices are optimised for driving IGBT and Power MOSFET transistors. The optocouplers exhibit rail-to-rail output, fast gate switching speed, high Common Mode Rejection (CMR) and reinforced insulation. Avago Technologies R2Coupler™ isolation products provide the reinforced insulation and reliability needed for critical automotive and high temperature applications.