NTST40120CTH

Overview

The NTST40120CTH is a through-hole Schottky barrier rectifier manufactured by onsemi. It features a dual common cathode configuration housed in an I2PAK package with four pins. The device is rated for a maximum continuous forward current of 40A and a peak repetitive reverse voltage of 120V. Key electrical characteristics include a maximum forward voltage drop of 430mV and a peak non-repetitive forward surge current capability of 250A.

Feature Summary

• Dual common cathode configuration providing two independent rectifying paths within a single component
• Schottky barrier technology designed to minimize power loss during conduction
• Through-hole mounting construction suitable for robust mechanical applications

Applications

• DC-DC converter circuits requiring low forward voltage drop
• Power supply freewheeling diodes
• Reverse polarity protection systems

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm exact thermal and electrical specifications. Ensure the procurement channel provides valid traceability records. Confirm that the component meets all relevant environmental compliance standards required for the intended deployment environment before finalizing acquisition.

Selection Notes

Select this component when a high-current, low-voltage rectification solution is required in a through-hole format. The dual common cathode arrangement allows for efficient use of board space compared to discrete single units. Evaluate the thermal management requirements based on the 40A rating and the specific ambient conditions of the target application.

Part Context

This component belongs to the family of high-current Schottky rectifiers from onsemi. It utilizes Schottky barrier technology to achieve superior switching performance and reduced heat generation compared to standard PN junction diodes. The I2PAK package offers a balance between high current handling capacity and ease of integration into traditional printed circuit board layouts.

Replacement Considerations

Direct replacements must match the 40A current rating, 120V voltage rating, and dual common cathode configuration. Verify that alternative packages maintain equivalent thermal resistance and pinout compatibility to ensure seamless integration without redesigning the host circuit board.