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HCPL2731SV is listed in the Transistor, Photovoltaic Output Optoisolators range at ChipApex. The manufacturer field lists onsemi. Its product description is OPTOISOLTR 2.5KV 2CH DARL 8-SMD. Review the specifications below when checking this part for your BOM.
The HCPL2731SV is a dual-channel high-speed optocoupler manufactured by onsemi. It features an AlGaAs LED input coupled to a split Darlington transistor output, providing high current transfer ratio and low input current requirements. The device supports data rates up to 100 kb/s with a maximum isolation voltage of 2500 Vrms. It is housed in an 8-SMD Gull Wing package designed for surface mount applications.
Verify the specific suffix 'SV' indicates the surface mount variant. Confirm RoHS compliance status as per the latest datasheet revision. Check for obsolete status notifications from onsemi. Ensure the supplier provides valid traceability documentation. Validate package dimensions against the official mechanical drawing.
Select this component when dual-channel isolation with high gain is required. The split Darlington output offers superior noise immunity compared to standard transistor outputs. Consider the 100 kb/s speed limit for application timing constraints. Evaluate the 8-SMD footprint compatibility with PCB layout requirements.
This part belongs to the HCPL-273x family of low input current high gain split Darlington optocouplers. It shares functional similarities with the HCPL-2730 single-channel version. The series is designed for robust signal transmission across isolation barriers in industrial and commercial equipment.
Public confirmed substitute: HCPL2731M.
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