The PS2705A-1 is a high isolation voltage SOP optically coupled isolator from NEC. It features AC input response, safety standards UL, DIN EN60747-5-2 (VDE0884 Part2) approved. It is used in hybrid IC, telephone/FAX machine, FA/OA equipment, programmable logic controllers, power supply etc.
The NEC PS2705A-1 is an optically coupled isolator that combines a GaAs LED with an NPN silicon phototransistor in a Small Outline Package (SOP). It offers high isolation voltage, low forward voltage, and is designed for high‑density mounting in applications such as hybrid ICs, telephone/fax equipment, programmable logic controllers, and power supplies.
The device is UL approved (File No. E72422), Pb‑free, and complies with DIN EN60747‑5‑2. It operates from –55 °C to +100 °C, with storage limits down to –55 °C and up to +150 °C. Ordering options include various tape and reel configurations.
| Isolation Voltage (BV) | 3750 V rms |
|---|---|
| Collector to Emitter Voltage (Vceo) | 70 V |
| Diode Forward Current (If) | +30 mA |
| Power Dissipation (Po) | 80 mW |
| Peak Forward Current | 40.5 A |
| Operating Ambient Temperature | -55 to +100 °C |
| Storage Temperature | -55 to +150 °C |
| Diode Forward Voltage (Vf) | 1.2‑1.4 V |
| Terminal Capacitance | 20 pF |
| Collector Saturation Voltage | 0.13‑0.3 V |
| Current Transfer Ratio (CTR) | 50‑300 % |
The isolation voltage (BV) is 3750 V rms.
It is supplied in a Small Outline Package (SOP).
Yes, it is UL approved, File No. E72422.
The device operates from –55 °C to +100 °C.