SFH628A / SFH6286 is an optocoupler produced by Vishay Semiconductors, with high common-mode interference immunity, low coupling capacitance, high isolation voltage and other features
The SFH628A (DIP) and SFH6286 (SMD) are phototransistor‑output optocouplers with a GaAs infrared emitter and silicon detector, offered in DIP‑4 and SMD packages. They are designed for signal transmission between electrically isolated circuits and are suitable for telecom, industrial controls, battery‑powered equipment and office machines.
Key electrical parameters include a 5300 VRMS isolation test voltage, collector‑emitter voltage rating of 55 V, CTR ranging from 63 % to 500 %, low coupling capacitance of about 45 pF, and typical switching times of 6 µs turn‑on and 5 µs turn‑off. The devices comply with RoHS, UL1577 and IEC standards and are supplied with various ordering options.
| Isolation test voltage | 5300 VRMS |
|---|---|
| Collector‑emitter voltage (VCEO) | 55 V |
| Power dissipation | 150 mW |
The devices are tested for an isolation voltage of 5300 VRMS.
The maximum collector‑emitter voltage is specified as 55 V.