The PC817X4NIP0F is a 1-channel DC Input Photocoupler. The LED used in the Photocoupler generally decreases the light emission power by operation. In case of long operation time, please design the circuit in consideration of the degradation of the light emission power of the LED (50%/5years). There are cases that the deviation of the CTR and the degradation of the relative light emission power of the LED increase when the setting value of IF is less than 1mA. In the case of flow soldering, it is recommended that flow soldering should be at 270°C or less for 10s or less.
