The maximum voltage that can be applied to the input pins is 5V, but it's recommended to keep it below 4.5V to ensure reliable operation.
To ensure proper biasing, connect a pull-up resistor (typically 1kΩ to 10kΩ) between the output pin and the supply voltage, and a pull-down resistor (typically 1kΩ to 10kΩ) between the input pin and ground.
The typical CTR of the MOC3023 is around 100%, but it can vary from 50% to 200% depending on the specific device and operating conditions.
The MOC3023 is not suitable for high-frequency applications above 1 MHz due to its limited bandwidth and rise/fall times. For high-frequency applications, consider using a faster optocoupler like the MOC3063.
The output pin is open-drain, so it can only sink current. To use it as a logic output, connect a pull-up resistor to the output pin and the supply voltage. This will allow the output to be driven high when the optocoupler is off.