CDBK0540

Overview

The CDBK0540-HF is a silicon Schottky barrier rectifier manufactured by Comchip Technology. It features a single diode configuration in an SOD-123F surface-mount package. Key electrical parameters include a maximum repetitive peak reverse voltage (Vrrm) of 40 V and an average forward rectified current (If) of 200 mA. The device exhibits a low forward voltage drop (Vf) and a maximum reverse leakage current (Ir) of 20 µA at 1 V. It operates within a junction temperature range of -55°C to +175°C.

Feature Summary

• Low forward voltage drop for improved efficiency
• Majority carrier conduction ensuring fast switching
• Leadless SMD package optimized for small surface mounting

Applications

• DC-DC converters
• Power supply circuits
• Reverse polarity protection

Procurement Notes

Verify the specific suffix, such as -HF, which indicates Halogen-free compliance. Confirm the package type matches the design requirement, typically SOD-123F. Ensure the manufacturer is Comchip Technology to guarantee parameter accuracy. Cross-reference datasheet values against the specific batch documentation before integration.

Selection Notes

Select this component when a compact Schottky rectifier with 40 V blocking capability is required. It is suitable for applications prioritizing low forward voltage and high-speed switching over higher current capacity. Verify that the 200 mA continuous current rating meets the circuit load requirements.

Part Context

This part belongs to Comchip Technology's Schottky diode lineup, designed for general-purpose rectification in space-constrained electronics. It utilizes silicon technology to provide reliable performance in surface-mount applications where thermal management and footprint size are critical constraints.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data.