onsemi, FODM121AR2V Phototransistor Output Optocoupler, Surface Mount, 4-Pin MFP

The FODM121 series, FODM124, and FODM2701 consists of a gallium arsenide infrared emitting diode driving a phototransistor in a compact 4-pin mini-flat package. The lead pitch is 2.54 mm. The FODM2705 consists of two gallium arsenide infrared emitting diodes connected in inverse parallel for AC operation.More than 5mm Creepage/Clearance Compact 4-Pin Surface Mount Package (2.4mm Maximum Standoff Height) Current Transfer Ratio in Selected Groups DC Input: FODM121: 50–600% FODM121A: 100–300% FODM121B: 50–150% FODM121C: 100–200% FODM124: 100% MIN FODM2701: 50–300% AC Input: FODM2705: 50–300% Applications Digital logic inputs Microprocessor inputs Power supply monitor Twisted pair line receiver Telephone line receiver