BUY HP6N137 https://www.utsource.net/itm/p/955727.html

Description: The HP6N137 is an 8-pin DIP (Dual In-line Package) optocoupler manufactured by Hewlett Packard. Features: High speed response time of 1.3 μs High isolation voltage of 5000 Vrms Low input current of 1 mA Low saturation voltage of 0.5 V Low output current of 10 mA Operating temperature range of -40°C to +85°C Applications: The HP6N137 optocoupler is used in various applications such as motor control, power supplies, industrial automation, and process control. It is also used in computer peripherals, telecommunications, and medical equipment. (For reference only)