CDBB540-G

Overview

The CDBB540-G is a Schottky barrier rectifier manufactured by Comchip Technology, designed for low-profile surface mount applications to optimize board space. It utilizes silicon epitaxial planar chip technology with a metal-silicon junction and features a guard ring for overvoltage protection. The device operates within a temperature range of -50°C to +150°C and is housed in a DO-214AA (SMB) package. Key electrical parameters include a maximum repetitive peak reverse voltage of 40V, a forward current capability of 5.0A, and a maximum instantaneous forward voltage of 0.55V at 5.0A. It also exhibits a high surge current rating of 125A.

Feature Summary

• Ultra-high-speed switching characteristics suitable for high-frequency applications
• Low power loss and high efficiency due to low forward voltage drop
• Guard ring structure provides enhanced overvoltage protection
• Halogen-free and RoHS compliant construction

Applications

• Low profile surface mount applications requiring optimized board space
• High frequency inverters
• Free wheeling diode circuits
• Polarity protection systems

Procurement Notes

Verify the specific ordering suffix against official documentation, as variations such as HF may indicate halogen-free status or packaging differences. Confirm that the requested part matches the DO-214AA package dimensions and marking codes provided in the datasheet. Ensure compliance with environmental regulations relevant to your region before finalizing procurement orders.

Selection Notes

Select this component when designing circuits requiring fast recovery times and low conduction losses at moderate reverse voltages. The 5.0A current rating supports general purpose rectification tasks. Consider the thermal resistance and derating curves if operating near maximum temperature limits. The SMB package is appropriate for automated surface mount assembly processes.

Part Context

This component belongs to the CDBB series of SMD Schottky Barrier Rectifiers from Comchip Technology. The series offers various voltage ratings ranging from 40V to 100V while maintaining a consistent 5.0A forward current capability. These devices are engineered for reliability in compact electronic designs across consumer and industrial sectors.

Replacement Considerations

Compatible substitutes within the same series include CDBB560-HF and CDBB5100-HF, which share identical mechanical and current specifications but offer higher reverse voltage ratings of 60V and 100V respectively.