BUY PC120 https://www.utsource.net/itm/p/160816.html
LONG CREEPAGE DISTANCE TYPE PHOTOCOUPLER
PC120 is a four-pin DIP (Dual In-line Package) optocoupler manufactured by Sharp. It is an optically isolated, high-speed, low-power, digital isolator. Description: The PC120 is a 4-pin optocoupler that provides electrical isolation between two circuits. It consists of a gallium arsenide infrared LED and a silicon NPN phototransistor. The LED is connected to the input side, and the phototransistor is connected to the output side. Features: High speed: tpLH = 0.5 μs (max) Low power consumption: IFT = 5 mA (max) High isolation voltage: VISO = 5 kV (min) Low saturation voltage: VCE(sat) = 0.3 V (max) High common mode transient immunity: CMR = 10 kV/μs (min) Applications: The PC120 is suitable for applications such as motor control, power supply control, and signal isolation. It can also be used in communication systems, industrial automation, and medical equipment. (For reference only)