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OPI123 - Optically Coupled Isolator

Download the OPI123 datasheet PDF. This datasheet also covers the OPI120 variant, as both devices belong to the same optically coupled isolator family and are provided as variant models within a single manufacturer datasheet.

General Description

Each Optoisolator in this data sheet contains an infrared Light Emitting Diode (LED) and a NPN silicon Photosensor.

The OPI120 has an 890 nm Light Emitting Diode (LED) and NPN phototransistor sensor, whereas the OP123 has a 890 nm LED and a photodarlington sensor.

Key Features

  • 15 kV dc electrical isolation.
  • Choice of phototransistor or photodarlington output.
  • Hermetically sealed LED and photosensor.
  • Base contact for conventional transistor biasing (OP120 only).
  • UL recognized File No. E58730.
  • Wide operating temperature range.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (OPI120-TT.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
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OPI102 (OPI102 / OPI103) OPTICALLY COUPLED ISOLATORS OPTEK Technologies
OPI103 (OPI102 / OPI103) OPTICALLY COUPLED ISOLATORS OPTEK Technologies
OPI113 OPTICALLY COUPLED ISOLATORS ETC
OPI140 OPTICALLY COUPLED ISOLATOR OPTEK Technologies

Other Datasheets by TT Electronics

Part Number Description
OPI120 Optically Coupled Isolator
OPI120-032 Optically Coupled Isolator
OPI125 OPTICALLY COUPLED ISOLATOR
OPI125TX OPTICALLY COUPLED ISOLATOR
OPI125TXV OPTICALLY COUPLED ISOLATOR

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Optically Coupled Isolator OPI120, OPI123 Features: • 15 kV dc electrical isolation • Choice of phototransistor or photodarlington output • Hermetically sealed LED and photosensor • Base contact for conventional transistor biasing (OP120 only) • UL recognized File No. E58730 • Wide operating temperature range Description: Each Optoisolator in this data sheet contains an infrared Light Emitting Diode (LED) and a NPN silicon Photosensor. The OPI120 has an 890 nm Light Emitting Diode (LED) and NPN phototransistor sensor, whereas the OP123 has a 890 nm LED and a photodarlington sensor. The devices are sealed in a precast opaque housing with a optically transmissive path between the LED and the photosensor. The Optoisolators in this data sheet are UL recognized under UL file E58730.