120NQ035-1

Overview

The 120NQ035-1 is a single Schottky rectifier diode manufactured by SMC Diode Solutions. It features a maximum repetitive peak reverse voltage of 35V and an average forward current rating of 120A. The device utilizes the PRM1-1 Half Pak module package, designed for chassis mount applications. Key electrical parameters include a maximum non-repetitive surge current of 1860A and a typical forward voltage drop of 0.65V at rated current. The component supports junction temperatures up to 175°C.

Feature Summary

• High-current Schottky rectification with low forward voltage drop
• PRM1-1 Half Pak module design for efficient chassis mounting
• Enhanced thermal performance supporting 175°C junction temperature operation

Applications

• Chassis mounted power supply circuits
• High-current DC-DC conversion modules
• Freewheeling diodes in high-power inverter systems

Procurement Notes

Verify the specific suffix designation when ordering, as variants such as the 120NQ035R-1 may exist within the same family. Confirm that the PRM1-1 package dimensions align with your chassis mounting hardware requirements. Ensure that the 35V reverse voltage rating meets the peak inverse voltage demands of your specific circuit topology before finalizing procurement.

Selection Notes

Select this component when a single-chip solution is required to replace multiple parallel DO-5 diodes, offering a lower profile and easier assembly. The 120A current rating makes it suitable for heavy-duty industrial applications where space constraints prohibit larger discrete packages. Consider the 0.65V forward voltage drop for efficiency calculations in low-voltage, high-current output stages.

Part Context

This part belongs to the SMC Diode Solutions high-power Half Pak module series. These modules are engineered to provide robust performance in demanding environments, often serving as direct replacements for older parallel diode configurations. The series emphasizes reliability and thermal management through its specialized packaging technology.

Replacement Considerations

The datasheet indicates this module can replace three parallel DO-5 diodes. Verify pinout compatibility and thermal interface requirements when substituting legacy components. Ensure the replacement maintains the 120A current handling capability and 35V blocking voltage.