CDBB140-HF

Overview

The CDBB140-HF is a Schottky barrier rectifier manufactured by Comchip Technology, designed for surface mount applications. It features an average forward current of 1 A and a maximum repetitive peak reverse voltage of 40 V. The device utilizes silicon technology with a DO-214AA (SMB) package. Key electrical characteristics include a forward voltage of 700 mV at 1 A, a surge current capability of 70 A, and a reverse leakage current of 20 mA. The component operates within a temperature range of -40°C to +70°C.

Feature Summary

• Schottky barrier rectifier technology for high efficiency
• Low profile SMB surface mount package
• Halogen-free construction

Applications

• General purpose rectification in power supplies
• Free-wheeling diodes in DC-DC converters
• Polarity protection circuits

Procurement Notes

Verify the specific datasheet version when sourcing, as manufacturing updates may occur. Confirm compliance with RoHS directives and halogen-free status requirements for your assembly process. Ensure the DO-214AA footprint matches your PCB design constraints before finalizing procurement orders.

Selection Notes

Select this component for applications requiring a 1 A continuous current rating and 40 V blocking voltage in a compact SMB package. Consider the 700 mV forward voltage drop for thermal management calculations. Verify that the operating temperature range of -40°C to +70°C meets the environmental conditions of the target system.

Part Context

This part belongs to Comchip Technology's CDBB series of Schottky diodes. The series offers various voltage and current ratings in the SMB package format. The CDBB140-HF specifically addresses low-voltage, medium-current rectification needs where space savings and switching efficiency are prioritized over higher voltage capabilities.

Replacement Considerations

Direct substitutes must match the 1 A current, 40 V voltage, and SMB package. Check equivalent parts from other manufacturers for identical pinout and thermal characteristics.