This document describes the features and characteristics of TLP541G and TLP542G, two Toshiba photocouplers. It includes parameters such as peak off-state voltage, trigger LED current, on-state current, isolation voltage, etc.
The TLP541G and TLP542G are solid‑state relay devices that combine a gallium‑arsenide infrared LED with a photo‑thyristor in a DIP package. They are intended for general electronics applications such as computers, office equipment, and industrial robotics.
The datasheet lists maximum ratings, recommended operating conditions, and detailed electrical characteristics, including a 400 V peak off‑state voltage, 2500 Vrms isolation voltage, and a supply voltage up to 120 Vac. It also provides usage restrictions and safety guidelines for designers.
| Peak off‑state voltage | 400 V (min.) |
|---|---|
| Trigger LED current | 7 mA (max.) |
| On‑state current | 150 mA (max.) |
| Isolation voltage | 2500 Vrms (min.) |
| Forward current IF | 70 mA |
| Storage temperature range | -55 °C to 125 °C |
| Supply voltage | 120 Vac (max.) |
The peak off‑state voltage is 400 V minimum.
The isolation voltage is rated at 2500 Vrms minimum.
The device can be powered up to 120 Vac and operates from –30 °C to 100 °C.