The PS2811-1 and PS2811-4 are optically coupled isolators suitable for high-density applications. They feature high current transfer ratio, high isolation voltage, and a compact package.
The PS2811-1 and PS2811-4 are optically coupled isolators that combine a GaAs LED with an NPN silicon phototransistor in a 4‑ or 16‑pin SSOP package for high‑density mounting. They are intended for applications such as programmable logic controllers, small power supplies, hybrid ICs, and modems/fax devices.
The sheet provides key electrical characteristics (CTR, isolation voltage, forward current, etc.), package dimensions, ordering numbers, safety approvals (UL, DIN EN60747‑5‑2) and handling instructions for the GaAs material.
| Current Transfer Ratio (CTR) | 200% typical @ Ir=1 mA |
|---|---|
| Isolation Voltage | 2500 Vrms |
| Reverse Voltage | 6 V |
| Collector Current | 40 mA per channel |
| Operating Temperature Range | -55 °C to +100 °C |
| Package Type | 4‑ or 16‑pin SSOP (Shrink SOP) |
The typical CTR is 200 % when the LED current is 1 mA.
They are rated for an isolation voltage of 2500 Vrms.
They are offered in a 4‑ or 16‑pin SSOP (Shrink SOP) package.
The parts are UL approved and meet DIN EN60747‑5‑2 (VDE0884) standards.