NTST30120CTG

Overview

The NTST30120CTG is a dual Schottky rectifier manufactured by onsemi, featuring a common cathode configuration. It is housed in a TO-220AB through-hole package with three pins. The device supports a maximum continuous forward current of 30 A and a repetitive peak reverse voltage of 120 V. Key electrical specifications include a maximum forward voltage drop of 500 mV at rated current and a peak non-repetitive forward surge current of 150 A. The component operates within a junction temperature range from -40 °C to +150 °C.

Feature Summary

• Dual Schottky barrier rectification with common cathode topology for efficient power conversion
• High thermal stability enabling reliable operation at elevated junction temperatures up to 150 °C
• Low forward voltage characteristic designed to minimize conduction losses in high-current applications

Applications

• High-frequency switch mode power supplies
• Notebook and LCD adapter power circuits
• Desktop SMPS freewheeling and clamping stages

Procurement Notes

Verify the specific suffix 'G' against the manufacturer's latest documentation to confirm RoHS compliance status and lead-free material composition. Confirm that the TO-220AB package outline matches the mechanical constraints of the target PCB footprint. Check for any recent product discontinuance notifications or obsolescence warnings directly from onsemi before finalizing procurement plans.

Selection Notes

Select this component when a dual Schottky rectifier with a 30 A rating and 120 V breakdown voltage is required in a standard through-hole package. Ensure the application demands low forward voltage drop to maintain efficiency. Verify that the thermal management solution can handle the power dissipation associated with 30 A continuous current. Consider the common cathode configuration suitability for center-tapped or full-wave rectification topologies.

Part Context

This part belongs to onsemi's NTSV/NTST series of Trench Schottky rectifiers. These devices utilize advanced trench technology to achieve superior performance compared to standard planar diodes. The series is designed for high-efficiency power conversion applications where low forward voltage and fast switching characteristics are critical. The TO-220AB package provides robust mechanical mounting and effective heat dissipation capabilities.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data.