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onsemi FODM121/124/2701/2705 Transistor Optocouplers

onsemi FODM121/124/2701/2705 Transistor Output Optocouplers consist of a gallium arsenide infrared emitting diode driving a phototransistor in a compact 4-pin mini-flat package. The lead pitch is 2.54mm. The FODM2705 series consists of two gallium arsenide infrared emitting diodes connected in inverse parallel for AC operation. Typical applications for onsemi FODM121/124/2701/2705 Transistor Output Optocouplers include digital logic inputs, microprocessor inputs, power supply monitor, twisted pair line receiver, and telephone line receiver.

Features

  • More than 5mm creepage/clearance
  • Compact 4-pin surface mount package (2.4mm maximum standoff height)
  • Current Transfer Ratio in selected groups DC Input
    • Current Transfer ratio in selected groups
      • DC Input:
        • FODM121: 50-600%
        • FODM121A: 100-300%
        • FODM121B: 50-150%
        • FODM121C: 100-200%
        • FODM121D: 50-100%
        • FODM121E: 150-300%
        • FODM121F: 100-600%
        • FODM2701: 50-300%
        • FODM2701A: 150-300%
        • FODM2701B: 80-160%
        • FODM124: 100% MIN
      • AC Input
        • FODM2705: 50-300%

Applications

  • Digital logic inputs
  • Microprocessor inputs
  • Power supply monitor
  • Twisted pair line receiver
  • Telephone line receiver

FODM121, FODM124, FODM2701 Equivalent Circuit

onsemi FODM121/124/2701/2705 Transistor Optocouplers

FODM2705 Equivalent Circuit

onsemi FODM121/124/2701/2705 Transistor Optocouplers
Published: 2014-10-27 | Updated: 2022-03-11