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HMAA2705R2 is listed in the Transistor, Photovoltaic Output Optoisolators range at ChipApex. The manufacturer field lists onsemi. Its product description is OPTOISO 3.75KV 1CH TRANS 4-SMD. Review the specifications below when checking this part for your BOM.
The HMAA2705R2 is a single-channel transistor output optocoupler manufactured by onsemi. It features an NPN phototransistor output and an AC input LED, housed in a compact SMD-4 surface-mount package. Key electrical parameters include a maximum collector-emitter voltage of 40 V, a maximum collector current of 80 mA, and a forward current rating of 50 mA. The device provides an isolation voltage of 3750 Vrms and operates within a temperature range of -40°C to +100°C. Power dissipation is rated at 150 mW, with a typical current transfer ratio of 300%.
Verify component authenticity through authorized distributors or the manufacturer directly. Confirm RoHS compliance status and check for end-of-life notifications, as availability may be limited. Ensure storage conditions meet specified humidity and temperature requirements to maintain reliability before assembly.
Select this component when AC input detection is required in a small form factor. Compare CTR specifications against load requirements to ensure sufficient gain. Verify that the 40V collector voltage meets the downstream circuit's voltage headroom needs.
This part belongs to the FODM series of transistor output optocouplers from onsemi. It shares functional similarities with the FODM2705R2 but carries specific suffix designations indicating packaging or variant differences. The series utilizes gallium arsenide infrared LEDs coupled with silicon phototransistors.
The FODM2705R2 is identified as a potential replacement or related variant within the same product family. Verify pinout compatibility and electrical parameter equivalence before substitution.
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