CDBM140L-HF

Overview

The CDBM140L-HF is a single-phase Schottky bridge rectifier manufactured by Comchip Technology. It features a maximum repetitive peak reverse voltage of 40 V and an average forward rectified current of 1 A. The device exhibits a typical forward voltage drop of 550 mV at 1 A and a maximum reverse leakage current of 500 µA at 40 V. Designed for surface mount applications, it utilizes the MBS (Miniature Bridge Rectifier) package, specifically identified as TO-269AA or 4-BESOP. The component operates within a junction temperature range of -55°C to +125°C.

Feature Summary

• Utilizes silicon epitaxial planar chip technology with metal-silicon junctions for majority carrier conduction.
• Provides ultra-high-speed switching capabilities suitable for high-frequency power conversion.
• Offers low forward voltage drop characteristics to minimize power loss and enhance overall efficiency.
• Features robust surge current capability to withstand transient electrical stresses.

Applications

• DC-to-DC converter circuits
• Power supply units requiring compact form factors
• Adapters and chargers

Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm exact electrical tolerances and packaging variations. Ensure compatibility with surface mount assembly processes and reflow soldering profiles specified in the datasheet. Confirm RoHS compliance status for environmental regulations.

Selection Notes

Select this component for designs prioritizing low forward voltage drop and high switching speeds in space-constrained environments. The MBS package offers a smaller footprint compared to traditional bridge rectifiers. Evaluate thermal management requirements based on the specified operating temperature range and power dissipation characteristics.

Part Context

This part belongs to the CDBHM series of low-profile Schottky barrier rectifiers from Comchip Technology. The series is characterized by its small surface-mount package and high-efficiency performance. It serves as a specialized solution for modern electronics where size reduction and thermal performance are critical design constraints.

Replacement Considerations

Consult official manufacturer substitution lists for verified equivalents. Generic replacements may differ in forward voltage or package dimensions.