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The CD214A-B340LLF is a Schottky Barrier Rectifier Chip Diode manufactured by Bourns Inc. It utilizes the SMA (DO-214AC) surface mount package and provides an average forward current of 3 A with a repetitive peak reverse voltage of 40 V. The device features a low forward voltage of 0.45 V at 3 A and a maximum reverse current of 1.0 mA. It supports a surge peak forward current of 70 A and operates within a junction temperature range of -55 °C to +125 °C.
Verify component authenticity through authorized channels as this part is obsolete. Confirm that replacements meet all electrical specifications, particularly the 3 A current rating and 40 V reverse voltage requirements. Ensure the substitute component matches the SMA package dimensions for proper board compatibility.
Select this component for applications requiring efficient rectification in compact designs. The low forward voltage characteristic makes it suitable for battery-powered systems where minimizing power dissipation is critical. Verify thermal resistance requirements against the specific application's heat dissipation capabilities.
This diode belongs to the CD214A-B3xx series of Schottky Barrier Rectifiers from Bourns. The series offers various voltage ratings from 20 V to 60 V in the same SMA package format. The 'L' suffix indicates a low forward voltage variant optimized for higher efficiency compared to standard versions in the lineup.
The datasheet identifies the CD214A-B3xR Series as the recommended replacement.