NTST20U100CTG

Overview

The NTST20U100CTG is a dual common cathode Schottky rectifier manufactured by onsemi. It features a 100 V repetitive peak reverse voltage and a combined average forward rectified current of 20 A. The device utilizes a low-profile TO-263AB (D2PAK) surface-mount package with three terminals. Key electrical characteristics include a maximum DC reverse leakage current of 4 mA at rated voltage and a typical forward voltage drop of 580 mV at 10 A per diode. The component is designed for high-efficiency power conversion applications requiring fast switching speeds.

Feature Summary

• Dual common cathode configuration integrates two independent rectifiers into a single compact package to reduce board space.
• Low forward voltage drop characteristic minimizes conduction losses and improves overall system efficiency.
• Fast switching action reduces reverse recovery time, making the device suitable for high-frequency operation.

Applications

• DC-DC converter circuits
• Free-wheeling rectification in inductive loads
• Power supply output stages

Procurement Notes

Verify the specific suffix 'G' confirms lead-free and halogen-free compliance as per manufacturer standards. Confirm the package marking matches the official datasheet silkscreen. Ensure the supplier provides valid RoHS documentation. Check for authenticity markers consistent with onsemi packaging protocols. Validate that the component is new and unused before integration.

Selection Notes

Select this component when a dual Schottky rectifier is required in a D2PAK package. The 100 V rating suits low-voltage DC bus applications. The 20 A total current capacity supports moderate power levels. Consider thermal management requirements due to the surface-mount form factor. Compare forward voltage specifications against alternative packages for efficiency optimization.

Part Context

This part belongs to onsemi's NTST series of ultra-fast Schottky rectifiers. The series is engineered for high reliability and low loss in power electronics. The dual common cathode design offers a cost-effective alternative to discrete diodes. It complements other components in synchronous rectification or boost converter topologies.

Replacement Considerations

Verify pinout compatibility with the original design. Check if alternative manufacturers offer equivalent voltage and current ratings in the TO-263AB package. Ensure thermal resistance values are comparable for heat dissipation planning. Confirm that the replacement meets the same regulatory compliance standards.