TLP126 is a photocoupler produced by Toshiba Semiconductor. Its features are high CTR and low AC input current. It is suitable for various applications that require optical isolation.
The TLP126 is a miniature GaAs infrared optocoupler designed for surface‑mount assembly. It combines a photo‑transistor with an inverse‑parallel gallium arsenide LED, delivering high current transfer ratio (CTR) at low input current. The device is UL‑listed (UL1577) and offers a collector‑emitter voltage rating of 80 V.
The datasheet lists detailed maximum ratings, electrical characteristics, switching behavior, and recommended operating conditions. It also includes handling and safety restrictions for reliable use in general electronics applications such as computers, office equipment, and industrial robotics.
| Collector‑emitter voltage (VCEO) min | 80 V |
|---|---|
| Isolation voltage (Vrms) min | 3750 Vrms |
| Forward current IF(RMS) max | 50 mA |
| Power dissipation (PD) max | 150 mW |
| Supply voltage range | 5‑48 V |
| Current transfer ratio (CTR) min | 100 % |
The device is rated for a collector‑emitter voltage of at least 80 V.
It offers an isolation voltage of at least 3750 Vrms.