HCPL-817-500E – AVAGO

The HCPL-817-500E is a single-channel optoisolator manufactured by Avago Technologies. It incorporates an infrared emitting diode (IRED) optically coupled to a silicon NPN phototransistor. The device provides 5 kVrms of reinforced insulation voltage per UL1577 and IEC/EN/DIN EN 60747-5-5, enabling safe electrical isolation between input and output circuits. The current transfer ratio (CTR) is specified within a broad range, typically exceeding 50% at an input current of 5mA, ensuring compatibility with various logic families. The device features a high collector-emitter breakdown voltage, contributing to its robust performance in demanding applications. Its compact package and industry-standard pinout facilitate easy integration into existing designs requiring galvanic isolation for signal transmission or control. The HCPL-817-500E is suitable for applications such as power supplies, industrial control systems, and digital logic isolation.