The PC817 series high-density mounting type photocoupler has a high current transfer ratio, high input and output voltage isolation, and a compact dual-in-line package. It is widely used in computer terminals, system appliances, measuring instruments, cash registers, copiers, automatic vending machines, and electric household appliances.
The Sharp PC817 Series photocoupler provides electrical isolation between input and output circuits. It is offered in 1‑ to 4‑channel versions (PC817, PC827, PC837, PC847) and in compact dual‑in‑line packages.
The datasheet lists absolute maximum ratings, electro‑optical characteristics such as forward voltage, a current transfer ratio of 50‑600 %, and an isolation voltage of 5 kV. Typical applications include computer terminals, system appliances, measuring instruments, registers, copiers, vending machines, electric home appliances, and signal transmission between circuits of different potentials.
| Forward current (If) rating | 50 mA |
|---|---|
| Reverse voltage (Vr) rating | 6 V |
| Power dissipation (P) rating | 70 mW |
| Collector‑emitter voltage (Vceo) rating | 35 V |
| Isolation voltage (Vio) | 5 000 V |
| Operating temperature range | -30 °C to +100 °C |
| Storage temperature range | 55 °C to +125 °C |
| Current transfer ratio (CTR) | 50 % – 600 % |
The PC817 series is rated for an isolation voltage of 5 000 V.
The CTR ranges from 50 % up to 600 % depending on the specific model.
Typical applications include computer terminals, system appliances, measuring instruments, registers, copiers, vending machines, electric home appliances, and signal transmission between circuits of different potentials.