Avago.The ACPL-38JT-500E with Logic Output Optocouplers is an optocoupler manufactured by Broadcom Avago. This optocoupler is comprised of a phototransistor output that is optically coupled with an infrared LED. It is designed to provide electrical insulation between connected circuits, and provide electrical isolation between high speed and low-power/low-voltage systems. This optocoupler is specifically designed to meet the needs of safety applications, where improved performance and reliability is needed, with a guaranteed minimum CTR (Current Transfer Ratio) of 500%.