CDBQR40-HF

Overview

The CDBQR40-HF is a surface-mount Schottky barrier rectifier manufactured by Comchip Technology. It features a single diode configuration in an SOD-923F (0402) package. Key electrical parameters include a maximum repetitive reverse voltage of 30 V and an average forward current of 200 mA. The device exhibits a low forward voltage drop and high surge capability, designed for ultra-high-speed switching applications.

Feature Summary

• Ultra-high-speed switching performance
• Low forward voltage drop for efficiency
• High surge current capability
• Lead-free construction compliant with environmental standards

Applications

• DC-DC converters
• Power supply circuits
• Reverse polarity protection

Procurement Notes

Verify the specific ordering suffix to ensure compliance with RoHS directives and lead-free requirements. Confirm the package type matches the design footprint. Check datasheet revisions for any updates to thermal or electrical ratings before finalizing procurement specifications.

Selection Notes

Select this component for space-constrained designs requiring fast recovery characteristics. Ensure the operating voltage remains below the 30 V rating. Consider the 200 mA current limit when designing load paths. Verify thermal management needs for the small SOD-923F package under continuous operation.

Part Context

This part belongs to Comchip's SMD Schottky Barrier Rectifier series. It utilizes silicon epitaxial planar chip technology. The device is intended for low-profile surface-mounted applications to optimize board space while maintaining reliable rectification performance.

Replacement Considerations

Direct substitutes must match the 30 V / 200 mA rating and SOD-923F package. Verify pinout compatibility and thermal resistance values. Cross-reference with other manufacturers' 0402 Schottky diodes ensuring identical electrical specifications.