BUY TLP280-4 https://www.utsource.net/itm/p/399530.html
Optocoupler - Transistor Output, 4 CHANNEL AC INPUT-TRANSISTOR OUTPUT OPTOCOUPLER
Description: TLP280-4 is an optically coupled isolator consisting of an infrared LED and a phototransistor. Features: High isolation voltage: BV = 5300 Vrms (min) High speed: tpLH/tpHL = 4.0/4.0 μs (max) Low input current: IFT = 0.5 mA (max) Low output saturation voltage: VCE(sat) = 0.2 V (max) High common mode transient immunity: CMH = 1000 V/μs (min) Application: TLP280-4 is suitable for various isolation applications such as signal transmission, power supply isolation, and motor control. It is also suitable for use in industrial equipment, office automation equipment, and home appliances. (For reference only)