CDBQR00340

Overview

The CDBQR00340 is a single Schottky barrier rectifier from Comchip Technology, housed in an SOD-923F (0402) surface-mount package. It features a maximum repetitive reverse voltage of 40 V and a forward current rating of 30 mA. The device exhibits a low forward voltage drop of 370 mV at 1 mA and supports a non-repetitive peak forward surge current of 500 mA. Operating junction temperature ranges up to +125°C with a power dissipation of 200 mW.

Feature Summary

• Ultra-thin SOD-923F package designed for small surface mounting applications
• Majority carrier conduction resulting in extremely low stored charge
• Low forward voltage drop for high efficiency and reduced power loss

Applications

• LED or diode evaluation circuits
• Capacitance measurement at specified reverse voltage and frequency
• Low profile surface mounted power management

Procurement Notes

Verify the specific suffix and revision against the manufacturer's latest datasheet to ensure compatibility with design requirements. Confirm package dimensions match the footprint layout. Check RoHS compliance status if environmental standards are mandatory for the final assembly process.

Selection Notes

Select this component for space-constrained designs requiring a 40 V Schottky rectifier. The 30 mA current rating suits low-power signal or logic-level applications. Ensure the PCB thermal relief is adequate for the 200 mW dissipation limit in the compact SOD-923F package.

Part Context

This part belongs to Comchip's CDBQR series of single Schottky diodes. It utilizes silicon epitaxial planar chip technology with a metal-silicon junction. The series is characterized by batch process design for consistent reverse leakage current and thermal resistance performance across production lots.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pinout and electrical parameters before considering alternative manufacturers' equivalents.