TLP141G is a TOSHIBA photocoupler suitable for surface mount assembly. It consists of a photo thyristor optically coupled to a gallium arsenide infrared emitting diode. It has a peak off-state voltage of 400V, a trigger LED current of 10mA, an on-state current of 150mA, and an isolation voltage of 2500Vrms.
The TLP141G is a miniature, surface‑mountable GaAs infrared photocoupler that combines a photo‑thyristor with an optically coupled gallium‑arsenide LED. The device is supplied in a small outline package with pins for anode, cathode, and gate, and is intended for general electronics applications such as computers, office equipment, and industrial robotics.
The document lists maximum ratings (e.g., 400 V off‑state voltage, 2500 Vrms isolation voltage), recommended operating conditions (supply voltage 120 Vac, operating temperature –25 °C to 85 °C), and detailed electrical characteristics including forward current, on‑state current, and capacitances. It also includes handling precautions and restrictions on use in safety‑critical or high‑reliability equipment.
| Peak off‑state voltage | 400 V (min) |
|---|---|
| Isolation voltage | 2500 Vrms (min) |
| On‑state current | 150 mA (max) |
| Forward current IF | 50 mA |
| Supply voltage | 120 Vac |
| Weight | 0.09 g |
The device is rated for a minimum isolation voltage of 2500 Vrms.
A supply voltage of 120 Vac is recommended.
The recommended operating temperature range is –25 °C to 85 °C.
The peak forward current for a 100 µs pulse at 100 pps is 1 A.