BUY SFH6156-3 https://www.utsource.net/itm/p/904741.html
Optocoupler, High Reliability, 5300 VRMS
Description: Optocoupler, Phototransistor Output, with Base Connection Features: * Isolation voltage: 5000 Vrms * Low input current: 0.5 mA * High collector-emitter voltage: 80 V * High CTR: 50 to 600 % * High speed: 0.5 μs Applications: * Interface circuits * Industrial equipment * Power supplies * Motor control (For reference only)