CDBA3150LR-HF

Overview

The CDBA3150LR-HF is a single-phase Schottky barrier rectifier manufactured by Comchip Technology. It features a repetitive peak reverse voltage of 150 V and a maximum average forward rectified current of 3 A. The device utilizes silicon technology and is housed in the DO-214AC (SMA) surface-mount package. Key electrical characteristics include a forward voltage of approximately 870 mV at rated current and a low reverse leakage current. It is designed for operation within a temperature range of -55°C to +150°C junction temperature, offering high efficiency and fast switching capabilities typical of Schottky diodes.

Feature Summary

• Schottky barrier construction for low forward voltage drop and minimal power loss
• High surge current capability for robust performance under transient conditions
• Low profile surface mount design suitable for automated assembly processes

Applications

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

Procurement Notes

Verify the specific suffix 'LR' against the manufacturer's official datasheet to confirm packaging details and RoHS compliance status. Ensure the ordering part number matches the required tape-and-reel specifications. Cross-reference the DO-214AC footprint dimensions with your PCB layout to guarantee mechanical compatibility before finalizing procurement orders.

Selection Notes

Select this component when a 3 A current rating and 150 V blocking voltage are required in a compact SMA package. Consider its low forward voltage characteristic for improved thermal management in high-efficiency designs. Verify that the operating environment stays within the specified -55°C to +150°C junction temperature range to ensure long-term reliability and performance stability.

Part Context

This part belongs to Comchip Technology's SMD Schottky Barrier Rectifier series. It is engineered for general-purpose rectification in space-constrained applications. The device represents a standard solution for replacing through-hole diodes in modern surface-mount assemblies, providing comparable electrical performance in a significantly smaller form factor.

Replacement Considerations

Direct substitutes must match the 3 A / 150 V / DO-214AC specification. Verify pinout compatibility and thermal resistance values. Check if alternative manufacturers offer identical electrical parameters and package dimensions to ensure seamless integration without redesigning the printed circuit board.