CDBB140LR-HF

Overview

The CDBB140LR-HF is a single Schottky barrier rectifier manufactured by Comchip Technology. It features a maximum average forward rectified current of 1 A and a maximum repetitive peak reverse voltage of 40 V. The device utilizes a DO-214AA (SMB) surface-mount package. Key electrical characteristics include a low forward voltage drop and high surge current capability, designed for efficient power conversion in compact electronic circuits.

Feature Summary

• Schottky barrier technology ensures ultra-fast switching speeds and minimal power loss during operation.
• Low profile surface mount design optimizes board space utilization for compact applications.
• High surge current capability provides robust protection against transient overvoltage events.

Applications

• DC-DC converter output rectification
• Free-wheeling diodes in inductive load circuits
• Power supply input protection

Procurement Notes

Verify the specific suffix 'LR' against the official Comchip Technology datasheet to confirm lead-free status and halogen-free compliance. Ensure the DO-214AA footprint matches the target PCB layout. Confirm RoHS directive adherence with the supplier prior to ordering.

Selection Notes

Select this component when a 1 A current rating and 40 V blocking voltage are required in an SMB package. Consider its low forward voltage for efficiency-critical designs. Evaluate thermal management requirements based on the expected ambient temperature and duty cycle.

Part Context

This part belongs to Comchip's CDBB series of surface-mount Schottky rectifiers. The series offers various voltage and current ratings in standardized packages like DO-214AA. These devices are engineered for general-purpose rectification where speed and efficiency are prioritized over high voltage handling.

Replacement Considerations

Cross-reference with other 1A 40V SMB Schottky diodes from manufacturers such as Vishay or Diodes Inc. Verify pinout compatibility and thermal resistance specifications before substitution.