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CNX38U300 is listed in the Transistor, Photovoltaic Output Optoisolators range at ChipApex. The manufacturer field lists onsemi. Its product description is OPTOISO 5.3KV TRANS W/BASE 6-DIP. Review the specifications below when checking this part for your BOM.
The CNX38U300 is a high-voltage transistor output optocoupler manufactured by onsemi. It features a single channel with an NPN phototransistor output that includes a base terminal for improved switching performance. The device provides galvanic isolation of 5300Vrms between the input LED and output collector-emitter circuit. Key electrical parameters include a maximum collector-emitter voltage of 80V, a maximum forward current of 100mA, and a typical current transfer ratio ranging from 70% to 210%. The unit operates within a temperature range of -40°C to +100°C and is housed in a 6-DIP package.
Verify component authenticity through authorized channels due to discontinued status. Confirm package integrity and pin alignment against original specifications. Review datasheet revisions for any parameter updates. Ensure storage conditions meet moisture sensitivity level requirements prior to assembly.
Evaluate isolation voltage requirements against system safety standards. Consider the availability of base-driven outputs for faster switching needs compared to standard phototransistors. Assess thermal management capabilities given the operating temperature range. Verify compatibility with existing PCB footprints and mounting styles.
This component belongs to the CNX38U series of high-voltage optoisolators from onsemi. The series is designed for applications requiring reliable electrical isolation in noisy environments. The specific model utilizes a transistor output configuration suitable for digital signal interfacing.
Public confirmed substitute part numbers: CNY173VM.
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