CDBUR40

Single Diodes Overview

The CDBUR40 is a single Schottky barrier rectifier from Comchip Technology, designed for low-profile surface-mount applications. It features a DFN package (also identified as SOD-523F/0603) with an average forward current of 200 mA and a maximum repetitive reverse voltage of 40 V. The device exhibits a low forward voltage drop of 0.55 V and a maximum reverse leakage current of 1 uA. It supports a non-repetitive peak forward surge current of 2 A and operates at junction temperatures up to +125°C.

Single Diodes Feature Summary

• Extremely thin leadless package design optimized for small surface mounting
• Ultra-high-speed switching capability with low forward voltage drop
• High surge current capability for overvoltage protection
• Lead-free construction meeting environmental standards

Single Diodes Applications

• Low profile surface mounted applications requiring board space optimization
• DC-DC converters and power supply circuits
• Protection diodes in high-frequency switching applications

Single Diodes Procurement Notes

Verify the specific suffix (e.g., -HF) against the manufacturer's datasheet to confirm compliance with RoHS and MIL-STD-19500/228 environmental standards. Ensure the ordering part number matches the required package type, as the CDBUR40 may be referenced under variations like CDBUR40-HF or CDBUR0240 depending on the specific revision and packaging configuration.

Single Diodes Selection Notes

Select this component when a compact Schottky rectifier is needed for low-voltage, low-current applications. The 200 mA rating and 40 V breakdown voltage define its operational limits. Consider the DFN/SOD-523F footprint for PCB layout constraints. Verify thermal management requirements given the small package size and 125°C maximum junction temperature rating.

Single Diodes Part Context

The CDBUR40 belongs to Comchip Technology's series of silicon epitaxial planar chip Schottky barrier rectifiers. These devices utilize metal-silicon junctions to achieve superior performance compared to standard PN junction diodes. The series emphasizes batch process design for consistent electrical characteristics and improved thermal resistance.

Single Diodes Replacement Considerations

Public confirmed substitutes include CDBUR40-HF and CDBUR0240. Verify pinout compatibility and exact electrical parameters before substitution.