18TQ045S

Overview

The 18TQ045S is a Schottky rectifier diode manufactured by SMC Diode Solutions. It features a single-element configuration with a maximum repetitive peak reverse voltage of 45V and an average forward rectified current of 18A. The device utilizes a TO-263AB (D2PAK) surface-mount package, connecting the case to the cathode. It is designed for low reverse leakage at high temperatures and optimized for general-purpose applications.

Feature Summary

• Schottky barrier technology for fast switching
• Low forward voltage drop characteristics
• High temperature stability with low reverse leakage
• Case connected directly to the cathode terminal

Applications

• General purpose rectification
• Free wheeling diode circuits
• High reliability power supplies

Procurement Notes

Verify the specific manufacturer source when sourcing this component. While often associated with International Rectifier or Infineon product lines, confirm the actual producer on the datasheet. Ensure the ordering suffix matches the required package variant and that RoHS compliance status aligns with project requirements before procurement.

Selection Notes

Select this component for designs requiring robust surface-mount rectification in space-constrained layouts. The D2PAK package offers improved thermal dissipation compared to smaller packages. Verify that the 45V rating provides sufficient margin for the circuit's peak inverse voltage and that the 18A current capacity meets the load requirements under expected operating temperatures.

Part Context

This part belongs to the 18TQ series of Schottky rectifiers. The series is characterized by its optimization for low reverse leakage at elevated temperatures. These devices are silicon-based rectifiers intended for use in applications demanding high reliability and efficient power conversion capabilities within standard industrial environments.