12CWQ04FN

Overview

The 12CWQ04FN is a surface mount, center tap Schottky rectifier series designed for applications requiring low forward drop and small footprints on PC boards. It features a D-PAK (TO-252AA) outline with two independent cathodes sharing a common anode base. The device supports a maximum average forward current of 12 A per leg and a repetitive peak reverse voltage of 40 V. Key electrical characteristics include a maximum forward voltage drop of 0.68 V at 12 A and a maximum reverse leakage current of 40 mA at 125 °C. The junction temperature range spans from -55 °C to 150 °C.

Feature Summary

• Center tap configuration with dual independent cathodes sharing a common anode base
• Low forward voltage drop optimized for high-frequency operation
• Guard ring structure providing enhanced ruggedness and long-term reliability
• Surface mountable in a popular D-PAK outline for compact PCB designs

Applications

• Disk drives
• Switching power supplies
• Converters
• Free-wheeling diodes
• Battery charging circuits
• Reverse battery protection

Procurement Notes

Verify the specific ordering suffix to confirm packaging orientation and lead-free status. The standard production version is available in tube or tape and reel formats. Ensure the selected variant matches the required reel orientation if using automated assembly equipment. Confirm that the component meets AEC-Q101 Level qualification standards if automotive application requirements are necessary.

Selection Notes

Select this component when a compact surface mount solution with a center tap topology is required. The device is suitable for circuits demanding low forward voltage drop and high-frequency switching capabilities. Consider the thermal resistance specifications and case temperature limits when designing heatsinking solutions for continuous high-current operations.

Part Context

This part belongs to the Vishay General Semiconductor - Diodes Division Schottky rectifier portfolio. Originally developed by International Rectifier, the product line was acquired by Vishay Intertechnology, Inc., as part of its acquisition of International Rectifier’s Power Control Systems business. The datasheet reflects specifications pending review by Vishay following the corporate acquisition.

Replacement Considerations

Cross-reference with other Vishay 12CWQ series variants for different voltage ratings or package options. Verify pinout compatibility and thermal performance before substituting with components from other manufacturers.

FAQ

What is the thermal resistance from junction to case?

The maximum thermal resistance from junction to case is 3.0 °C/W per leg and 1.5 °C/W for the entire device under DC operation.

Is the 12CWQ04FN qualified for automotive applications?

Yes, the product has been designed and qualified for AEC-Q101 Level standards.

What is the typical junction capacitance per leg?

The typical junction capacitance per leg is 405 pF, measured at 5 VDC with a test signal frequency range of 100 kHz to 1 MHz at 25 °C.