TLP131 is a small outline coupler suitable for surface mount assembly. It consists of a photo transistor optically coupled to a gallium arsenide infrared emitting diode. It has a collector-emitter voltage of 80V, a current transfer ratio of 50%, and an isolation voltage of 3750Vrms.
The TLP131 is a miniature surface‑mount photocoupler that integrates a gallium‑arsenide infrared LED with a photo‑transistor. It is designed for use in office machines, programmable controllers, AC/DC input modules, and telecommunications equipment.
The document provides absolute maximum ratings, recommended operating conditions, detailed electrical parameters, isolation and switching characteristics, as well as safety and usage restrictions for designers.
| Collector‑emitter voltage (VCEO) | 80 V (min) |
|---|---|
| Current transfer ratio (CTR) | 50 % (min) |
| Isolation voltage | 3750 Vrms (min) |
| Forward current (IF) | 50 mA (max) |
| Power dissipation (P_D) | 150 mW (typ) |
| Storage temperature range | -55 °C to 125 °C |
| Lead soldering temperature (10 s) | 260 °C |
The isolation voltage is rated at a minimum of 3750 Vrms.
The recommended supply voltage is between 5 V and 48 V.
The maximum forward current is 50 mA.