1. High sensitivity type LED operate current: typical 0.31 mA
2. Low-level off state leakage current (Typical 1 µA at 400 V load voltage) 3. Eliminates the need for a power supply to drive the power MOSFET
4. Low thermal electromotive force (Approx. 1 µV) 5. Extremely low closed-circuit offset voltages to enable control of small analog signals without distortion
6. Eliminates the need for a counter electromotive force protection diode in the drive circuits on the input side
7. Stable on resista.