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LDA111S - unidirectional-input Optocoupler

Download the LDA111S datasheet PDF. This datasheet also covers the LDA111 variant, as both devices belong to the same unidirectional-input optocoupler family and are provided as variant models within a single manufacturer datasheet.

General Description

LDA111 is a unidirectional-input optocoupler with a Darlington-transistor output.

The LDA111 has a minimum current transfer ratio (CTR) of 300% with a maximum value of 30,000%.

UL Recognized Component: File E76270 CSA Certified Component: Certificate 1175739

Key Features

  • 100mA Continuous Load Rating.
  • 3750Vrms Input/Output Isolation.
  • Unidirectional Input.
  • Small 6-Pin Package, Thru-Hole or Surface Mount.
  • Machine Insertable, Wave Solderable.
  • Surface Mount Tape & Reel Packaging Available.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LDA111-IXYS.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by IXYS (now Littelfuse)

Part Number Description
LDA111 unidirectional-input Optocoupler
LDA110 Optocoupler
LDA100 Optocoupler
LDA101 Optocoupler
LDA102 Optocoupler

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
INTEGRATED CIRCUITS DIVISION Parameter Breakdown Voltage - BVCEO Current Transfer Ratio - CTR (typical) Saturation Voltage - VCE(sat) Input Control Current - IF Rating 30 8500 1 1 Units VP % V mA Features • 100mA Continuous Load Rating • 3750Vrms Input/Output Isolation • Unidirectional Input • Small 6-Pin Package, Thru-Hole or Surface Mount • Machine Insertable, Wave Solderable • Surface Mount Tape & Reel Packaging Available Applications • Telecom Switching • Tip/Ring Circuits • Modem Switching (Laptop, Notebook, Pocket Size) • Loop Detect • Ringing Detect • Current Sensing LDA111 Optocoupler, Unidirectional Input Darlington-Transistor Output Description LDA111 is a unidirectional-input optocoupler with a Darlington-transistor output.