The optocoupler is a new type of device that combines the photoelectric effect with electronic switching technology. It has the characteristics of optical isolation, no contact, long life, strong anti-interference ability, and is widely used in industrial control, instruments and meters, communications, computers, household appliances, medical equipment and other fields.
The document introduces the optical coupler family, describing their construction, operating principle and the wide range of models such as GH3201Z, GH302, GH1205Z, etc. It explains how the devices combine light‑emitting and light‑receiving elements in a single package to achieve electrical isolation.
Key sections cover typical parameters (forward/reverse current, isolation capacitance and resistance), package types, channel counts, typical waveforms, and a comparison with foreign equivalent parts. The manual is aimed at engineers who need to select, integrate or replace optical couplers in electronic circuits. This manual is written in Chinese.
| Isolation Voltage | 10kV‑30kV |
|---|---|
| Package Types | 双列盲捕封装, T0 封装, 届平封装 |
The coupler suppresses ground‑loop noise, provides high isolation, fast response, and supports multiple channel configurations.
Isolation voltages are offered in ranges of 10 kV, 20 kV and up to 30 kV.