CDBM120-HF

Overview

The CDBM120-HF is a Schottky barrier rectifier manufactured by Comchip Technology. It features a maximum repetitive peak reverse voltage of 20V and an average forward current rating of 1A. The device utilizes a silicon epitaxial planar chip with a metal-silicon junction, housed in a Mini SMA (SOD-123) surface-mount package. Key electrical characteristics include a low forward voltage drop and high surge capability. The component is designed for ultra-high-speed switching applications and includes guardring protection against overvoltage conditions.

Feature Summary

• Low profile surface mount design to optimize board space
• High efficiency with low power loss and forward voltage drop
• Guardring structure provides overvoltage protection
• Ultra-high-speed switching capability

Applications

• Surface mount rectification in compact electronic circuits
• Power supply input rectification
• Free-wheeling diodes in DC-DC converters

Procurement Notes

Verify the specific ordering suffix and packaging configuration when sourcing. Confirm that the component meets required environmental standards such as RoHS compliance. Ensure the selected variant matches the intended thermal and mechanical constraints of the target assembly process.

Selection Notes

Select this component for applications requiring a 20V reverse voltage rating and 1A continuous current capacity. The Mini SMA package is suitable for space-constrained designs. Consider the forward voltage characteristics for efficiency requirements and verify thermal management needs for the specific operating environment.

Part Context

This part belongs to the Comchip Technology CDBM series of Schottky barrier rectifiers. The series is characterized by low forward voltage drop and high efficiency. These devices are engineered for general-purpose rectification in surface-mount applications where small footprint and fast switching speeds are critical design parameters.

Replacement Considerations

Cross-reference with other 20V 1A Schottky diodes in the SOD-123 package. Verify pinout compatibility and thermal resistance values before substitution. Ensure the alternative device meets or exceeds the original forward voltage and reverse leakage specifications.