When selecting an optocoupler relay, the following principles need to be considered:
Voltage and current: Select appropriate specifications of optocoupler relays based on the actual circuit voltage and current requirements to ensure their normal operation and leave a certain margin.
Working frequency: Select an appropriate optocoupler relay based on the actual working frequency of the circuit to ensure its normal response and certain anti-interference ability.
Isolation voltage: Select optocoupler relays with high isolation voltage to ensure the safety and stability of the circuit.
Transmission rate: Select optocoupler relays with appropriate transmission rates according to actual needs to ensure the quality and stability of signal transmission.
Environmental conditions: Consider factors such as temperature, humidity, and vibration in the working environment of the optocoupler relay, and choose products with good environmental adaptability.