CorporationThe PC817X3NIPW is a photocoupler manufactured by Sharp Corporation with Sharp Microelectronics. This device comes in a small package with plated leads. It consists of an infrared emitting diode and a separate NPN silicon phototransistor. This zero-cross coupling is ideal for detecting small current signals and isolating circuits due to its low forward voltage drop. This device has a maximum current transfer ratio of 600%, and is designed for digital communication in a wide range of control and interface applications. It operates in a broad temperature range with superior noise immunity and good temperature stability.