The Toshiba TLP181 is a miniature flat optocoupler that combines a GaAs infrared LED with a phototransistor in a four‑lead DIP package. It is intended for general commercial applications such as office equipment, communication gear, and domestic appliances.
The data sheet provides electrical ratings, switching characteristics, temperature limits, and recommended operating conditions, allowing designers to evaluate the device for isolation and signal transfer needs.
| Collector‑Emitter Voltage (VCEO) | 80 V (min) |
|---|---|
| Current Transfer Ratio (CTR) | 50 % (min) |
| Isolation Voltage | 3750 Vrms (min) |
| Forward Current (I_F) | 50 mA |
| Reverse Voltage (V_R) | 5 V |
| Junction Temperature (Tj) | 125 °C |
| Storage Temperature Range | -55 °C to 125 °C |
| Total Package Power Dissipation | 200 mW |
| Rise Time | 2 µs (typ) |
The device is rated for a minimum collector‑emitter voltage of 80 V.
It provides at least 3750 Vrms isolation voltage.
The forward current rating is 50 mA.