12CTQ040

Overview

The SMC Diode Solutions 12CTQ040 is a dual common cathode Schottky rectifier designed for high-efficiency power conversion applications. It features two independent 6A diodes within a single package, providing a combined current rating of 12A at a maximum repetitive reverse voltage of 40V. The device utilizes low-profile surface-mount technology to minimize board space while maintaining robust thermal performance. Its construction ensures minimal forward voltage drop and ultra-fast recovery characteristics, making it suitable for DC-DC converters, freewheeling, and polarity protection circuits in demanding electronic environments.

Feature Summary

• Dual common cathode configuration integrating two independent Schottky barriers
• Ultra-low forward voltage drop for enhanced energy efficiency
• High surge current capability to withstand transient load conditions
• Lead-free finish compliant with RoHS directives

Applications

• DC-DC converter output rectification
• Freewheeling diodes in synchronous rectification topologies
• Polarity protection circuits
• Clamping diodes in high-speed switching applications

Procurement Notes

Verify the specific suffix code on the component marking to confirm lead plating and packaging format. Ensure the ordering part number matches the required tape-and-reel quantity or cut-length specifications. Confirm that the manufacturer's datasheet revision aligns with the latest regulatory compliance standards before finalizing procurement contracts.

Selection Notes

Select this component when space constraints require a dual-diode solution without sacrificing current capacity. Evaluate the thermal resistance parameters against the expected ambient temperature and PCB copper area to ensure junction temperatures remain within safe operating limits during continuous operation.

Part Context

This component belongs to the CTQ series of surface-mount Schottky rectifiers from SMC Diode Solutions. The series is engineered for compact power management designs requiring reliable rectification in low-voltage, high-current scenarios. It serves as a standard replacement for through-hole equivalents in modern automated assembly lines.

Replacement Considerations

• MBR640
• STPS6L40D
• SS3H40

FAQ

What is the maximum forward current per diode?

Each diode in the dual package supports a continuous forward current of 6A.

Is the device suitable for high-frequency switching?

Yes, the Schottky barrier technology provides fast switching speeds with negligible reverse recovery charge.

What is the peak reverse voltage rating?

The device is rated for a maximum repetitive peak reverse voltage of 40V.