CDBA140SLR-HF

Overview

The CDBA140SLR-HF is a Schottky barrier rectifier manufactured by Comchip Technology in the DO-214AC (SMA) surface-mount package. It features a maximum DC reverse voltage of 40 V and an average forward rectified current rating of 1 A. The device supports a forward surge current of 30 A. Electrical characteristics include a maximum reverse leakage current of 2 mA. The component operates within a temperature range from -55 °C to +100 °C junction temperature.

Feature Summary

• Super low forward voltage drop design for high efficiency
• High-speed switching capability suitable for high-frequency applications
• Surface-mount construction in compact DO-214AC package

Applications

• High-frequency power supply circuits
• DC-DC converter output rectification
• Free-wheeling diode applications in inductive loads

Procurement Notes

Verify part status as obsolete before procurement planning. Confirm availability of direct substitutes such as MBRA340T3G or similar equivalents. Ensure compatibility with existing PCB footprints and thermal management requirements when transitioning to alternative components.

Selection Notes

Select this component for applications requiring low forward voltage drop and fast recovery times. The 40 V reverse voltage rating suits low-voltage DC systems. Verify that the 1 A average current rating meets load requirements and that the SMA package fits the assembly constraints.

Part Context

This part belongs to Comchip's Super Low VF SMD Schottky Barrier Rectifier series. It is designed for general-purpose rectification where efficiency and speed are prioritized over high voltage blocking capabilities. The DO-214AC package provides a balance between current handling and board space savings.

Replacement Considerations

Direct substitute options include MBRA340T3G from onsemi. Verify pinout compatibility and electrical parameter equivalence before substitution.