18TQ035S

Overview

The 18TQ035S is a silicon Schottky rectifier manufactured by SMC Diode Solutions. It features a maximum repetitive peak reverse voltage of 35 V and an average forward rectified current rating of 18 A. The device utilizes a surface-mount D2PAK package, providing efficient thermal management for high-power applications. Key electrical characteristics include a low forward voltage drop to minimize conduction losses and high-frequency operation capabilities suitable for modern switching power supplies.

Feature Summary

• Schottky barrier construction for low forward voltage drop
• High frequency operation capability
• Surface mount D2PAK packaging

Applications

• Switching power supplies
• DC-DC converters
• Free-wheeling diodes in low voltage circuits

Procurement Notes

Verify the specific datasheet revision (e.g., N2261 REV.A) when sourcing, as technical parameters may be updated. Confirm the manufacturer is SMC Diode Solutions to distinguish from similar part numbers produced by other vendors like Vishay. Ensure the D2PAK footprint matches the target PCB design before finalizing procurement.

Selection Notes

Select this component for applications requiring high current handling at low voltages. The 35 V rating suits 12 V or 24 V systems. The D2PAK package offers superior thermal performance compared to smaller surface-mount packages. Consider the forward voltage drop impact on overall system efficiency during selection.

Part Context

This component belongs to the SMC Diode Solutions TQ series of Schottky rectifiers. The series includes variants with different current ratings, such as the 10A rated 10TQ035S and the 18A rated 18TQ035S. These devices are designed for general-purpose rectification in compact power electronics designs.

Replacement Considerations

The VS-18TQ035S-M3 from Vishay Siliconix is a comparable alternative. Verify pinout compatibility and thermal resistance specifications before substitution. Ensure the replacement meets the same 35 V and 18 A requirements.