CDBFR0520

Overview

The CDBFR0520 is a silicon Schottky barrier rectifier manufactured by Comchip Technology in the SOD-323F (1005) surface-mount package. It features a maximum repetitive reverse voltage of 30 V and an average forward current rating of 500 mA. The device exhibits a low forward voltage drop, typically 470 mV at rated current, ensuring high efficiency. Key electrical characteristics include a maximum reverse leakage current of 100 µA and a forward surge current capability of 2 A. Designed for ultra-high-speed switching, it utilizes a silicon epitaxial planar chip with metal-silicon junction technology to minimize power loss.

Feature Summary

• Ultra-high-speed switching capability utilizing silicon epitaxial planar chip technology
• Low forward voltage drop for optimized power efficiency
• Guardring structure provides enhanced overvoltage protection stability

Applications

• High-frequency DC-DC converter circuits
• Reverse polarity protection in portable devices
• Clamping diodes in low-voltage signal paths

Procurement Notes

Verify the specific suffix designation when ordering, as variants such as CDBFR0520-HF may exist with identical electrical specifications but different compliance markings. Confirm the package type matches the design footprint, as the standard part uses the SOD-323F outline. Check manufacturer lifecycle status, as some listings indicate this series may be scheduled for obsolescence or discontinuation. Ensure compatibility with automated pick-and-place equipment regarding the small 1005 metric package dimensions.

Selection Notes

Select this component for applications requiring compact footprints and fast recovery times in low-current scenarios. The 500 mA rating suits power-sensitive designs where thermal management is limited. Compare against higher current Schottky alternatives if load demands exceed 500 mA. Consider the 30 V reverse voltage limit for input protection circuits. Evaluate the low leakage current benefits for battery-operated systems requiring minimal standby drain.

Part Context

This device belongs to Comchip Technology's SMD Schottky Barrier Rectifier series, designed for space-constrained surface-mount applications. The family emphasizes low profile construction to optimize board area while maintaining high current density. These rectifiers are engineered for general-purpose switching and rectification tasks in consumer electronics and industrial control modules requiring reliable performance in small form factors.

Replacement Considerations

Publicly confirmed substitute part numbers for the CDBFR0520 were not identified in the provided documentation. Verify pinout compatibility and thermal characteristics before considering alternative manufacturers' equivalents.