TLP197G is a small outline photo relay suitable for surface mount assembly. It consists of a gallium arsenide infrared emitting diode optically coupled to a photo-MOS FET. It can be applied in card modems and serves as a bi-directional switch to replace mechanical relays in fax machines and modems.
The TLP197G is a miniature GaAs infrared emitting diode optically coupled to a photo‑MOS FET in a 6‑lead, 2.1 mm high package. It is intended for surface‑mount assembly and can replace mechanical relays in fax machines, modems, and similar equipment.
The document lists maximum ratings, individual and coupled electrical characteristics, isolation and switching parameters, as well as recommended operating conditions and product‑use restrictions.
| Peak off‑state voltage | 350 V (min) |
|---|---|
| On‑state current (A connection) | 120 mA (max) |
| On‑state resistance | 35 Ω (max) |
| Isolation voltage | 1500 Vrms (min) |
| Forward current IF | 50 mA |
| Reverse voltage VR | 5 V |
| Junction temperature Tj | 125 °C |
| Operating temperature range Topr | -40 °C to 85 °C |
The peak off‑state voltage is 350 V (minimum).
The device is rated for an operating temperature range of –40 °C to 85 °C.
The isolation voltage is specified as 1500 Vrms (minimum).