VISHAY SFH6315T/ SFH6316T/ SFH6343T is a high-speed optocoupler with features such as surface mountability, high-speed transmission, compatibility with infrared vapor phase reflow and wave soldering processes.
These high‑speed optocouplers are surface‑mountable, SOIC‑8 packaged devices designed for line‑receiver, logic‑ground isolation, and analog‑signal isolation applications. They feature a GaAlAs infrared emitter, integrated photodetector, and an open‑collector transistor output with RoHS‑compliant, lead‑free construction.
The datasheet lists absolute maximum ratings such as a 3000 VRMS isolation test voltage, supply voltage range of 0.5‑30 V, and power dissipation up to 45 mW. Electrical characteristics include typical propagation delays of 0.5 µs (logic low) and 0.5‑1.0 µs (logic high), CTR values from 7 % to 35 % depending on the part, and an ambient temperature range of –55 °C to +100 °C.
| Isolation test voltage | 3000 VRMS |
|---|---|
| Supply voltage range | 0.5 V – 30 V |
| Output voltage range | 0.5 V – 25 V |
| Propagation delay (logic low, typical) | 0.5 µs |
| Current Transfer Ratio (CTR) SFH6316T | 19 % – 35 % |
| Ambient temperature range | -55 °C – +100 °C |
The devices are rated for an isolation test voltage of 3000 VRMS.
Typical propagation delay to a logic‑low output is about 0.5 µs.
The SFH6316T has a typical current transfer ratio of 19 % to 35 %.
The allowed supply voltage spans from 0.5 V to 30 V.