12CWQ03FNTR

Overview

The 12CWQ03FNTR is a surface mount center tap Schottky rectifier manufactured by Vishay General Semiconductor - Diodes Division. It features a D-PAK (TO-252AA) package with an average forward current rating of 12 A and a maximum DC reverse voltage of 30 V. The device exhibits a low forward voltage drop, specified at 0.47 V at 6 A and 0.55 V at 12 A per leg. It supports a junction temperature range from -55 °C to 150 °C and includes a guard ring for enhanced ruggedness.

Feature Summary

• Center tap configuration designed for applications requiring small footprints on printed circuit boards
• Low forward voltage drop characteristics optimized for high frequency operation
• Guard ring structure incorporated to enhance ruggedness and long term reliability

Applications

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

Procurement Notes

Verify the specific orientation suffix required for automated assembly, as the TR designation indicates tape and reel packaging. Confirm lead-free status if RoHS compliance is mandatory, noting that standard production versions may differ from PbF variants. Ensure thermal management aligns with the specified junction-to-case thermal resistance values during system design.

Selection Notes

Select this component when a dual-diode center tap arrangement is needed in a compact surface mount footprint. The low forward voltage drop makes it suitable for improving efficiency in low voltage output stages. Verify that the 30 V reverse voltage rating provides sufficient margin for the peak inverse voltages present in the target switching application.

Part Context

This part belongs to the 12CWQ series of Schottky rectifiers, originally developed by International Rectifier before being acquired by Vishay Intertechnology, Inc. The series utilizes silicon carbide or specialized silicon structures to achieve fast switching speeds and low leakage currents compared to standard PN junction rectifiers.

Replacement Considerations

Direct replacements include the 12CWQ03FNPBF for lead-free requirements. Other compatible parts within the same family include variations with different voltage ratings such as the 12CWQ06FN or 12CWQ10FN, provided the reverse voltage specifications meet the circuit requirements.

FAQ

What is the typical junction capacitance per leg?

The typical junction capacitance is 590 pF, measured at a reverse voltage of 5 VDC with a test signal ranging from 100 kHz to 1 MHz.

Is the device qualified for automotive applications?

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

What is the maximum non-repetitive surge current rating?

The maximum peak one-cycle non-repetitive surge current is 320 A for a 5 μs sine wave pulse or 130 A for a 10 ms sine wave pulse.