CDBF0520L-HF

Overview

The CDBF0520L-HF is a surface-mount Schottky barrier rectifier manufactured by Comchip Technology. It features a maximum repetitive peak reverse voltage of 20 V and an average forward current rating of 500 mA. The device utilizes a low-profile SOD-323F (1005) package, designed for efficient board space utilization in compact electronic circuits.

Feature Summary

• Schottky barrier construction for ultra-high-speed switching and low forward voltage drop
• Low profile surface mount design to optimize board space
• Guardring structure provides overvoltage protection
• Silicon epitaxial planar chip with metal silicon junction

Applications

• Low voltage DC-DC converters
• Power supply rectification
• Reverse polarity protection circuits
• Clamping diodes in high-speed logic interfaces

Procurement Notes

Verify the specific suffix 'HF' confirms halogen-free compliance as per manufacturer standards. Confirm the package designation matches SOD-323F or 1005 metric dimensions. Ensure the part number corresponds to the 500mA current rating rather than other variants in the CDBF series. Cross-reference the datasheet revision date to ensure electrical characteristics align with current production batches.

Selection Notes

Select this component when a low forward voltage drop and fast recovery time are required in a minimal footprint. The 20V reverse voltage rating suits low-voltage applications. Compare thermal resistance requirements against the small SOD-323F package limitations. Consider the 500mA continuous current limit for load calculations. Evaluate surge current capabilities if transient loads are present in the circuit design.

Part Context

This device belongs to Comchip Technology's CDBF series of surface-mount Schottky barrier rectifiers. The series offers various current ratings and voltage options housed in compact packages like SOD-323F. These components are engineered for high efficiency and reliability in modern consumer electronics and industrial control systems requiring small form factors.

Replacement Considerations

Check for direct pin-compatible alternatives from other manufacturers offering identical 20V/500mA specifications in SOD-323F packages. Verify that substitute parts maintain similar forward voltage drops and reverse leakage currents. Ensure the replacement also meets RoHS and halogen-free requirements if mandated by the original design constraints.