CDBF0140R-HF

Overview

The CDBF0140R-HF is a surface-mount Schottky barrier diode manufactured by Comchip Technology. It features a repetitive peak reverse voltage of 40V and an average forward rectified current of 100mA. The device utilizes majority carrier conduction to ensure fast switching characteristics. It is housed in an extremely thin, leadless 0402 or SOD-923F package, designed for efficient mounting on small surface areas with minimal footprint requirements.

Feature Summary

• Low reverse leakage current for improved efficiency
• Designed specifically for compact surface-mount applications
• Utilizes an extremely thin and leadless package structure
• Employs majority carrier conduction technology

Applications

• Power supply circuits requiring low voltage drop
• Reverse polarity protection in portable devices
• Clamping and freewheeling applications in high-frequency circuits

Procurement Notes

Verify the specific suffix and marking code (cathode band & B9) against the official datasheet to confirm the exact variant. Ensure the selected component matches the required RoHS compliance status and package dimensions for your PCB layout. Cross-reference the manufacturer's latest documentation to confirm availability and any potential design changes.

Selection Notes

Select this component when space constraints necessitate a leadless 0402 or SOD-923F package. It is suitable for low-current applications up to 100mA where a 40V reverse voltage rating is sufficient. Consider its low reverse current and majority carrier operation for efficiency-critical designs.

Part Context

This part belongs to the CDBF series of Schottky diodes from Comchip Technology. It shares family characteristics such as low forward voltage and fast switching but is distinct due to its specific 100mA current rating and 40V voltage rating within the ultra-small form factor category.

Replacement Considerations

Check for direct substitutes like the CDBF0140R. Verify that alternative components match the 100mA current, 40V voltage, and SOD-923F/0402 package dimensions before integration.