180NQ035

Overview

The Vishay 180NQ035 is a high-current Schottky rectifier module in the 180NQ series, rated for a maximum DC reverse voltage of 35 V and an average forward current of 180 A. It utilizes proprietary barrier technology to achieve a low forward voltage drop of 0.60 V at 180 A and supports junction temperatures up to 150°C. The device features a Half-Pak case style with a thermal resistance from junction to case of 0.30 °C/W. Electrical characteristics include a peak surge current capability of 25,500 A and a typical series inductance of 6.0 nH.

Feature Summary

• Optimized for very low forward voltage drop with moderate leakage current
• Reliable operation up to 150°C junction temperature using proprietary barrier technology
• High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance
• Guard ring design for enhanced ruggedness and long term reliability

Applications

• Switching power supplies
• Converters
• Free-wheeling diodes
• Reverse battery protection

Procurement Notes

Verify component authenticity through authorized channels as datasheet references IRF branding while manufacturer is listed as Vishay General Semiconductor. Confirm package dimensions and mounting torque specifications (40-58 kg-cm) against specific application requirements. Ensure heatsink surface preparation meets the smooth and greased condition specified for the 0.15 °C/W case-to-heatsink thermal resistance value.

Selection Notes

Select this module when high current handling and low conduction losses are critical. The 180NQ035 is suitable for applications requiring robust performance under high thermal stress, given its 150°C operating limit. Consider the Half-Pak form factor for easier mounting compared to parallel DO-5 configurations. Evaluate thermal management needs based on the 0.30 °C/W junction-to-case resistance and allowable case temperature curves.

Part Context

The 180NQ035 belongs to the 180NQ series of high current Schottky rectifiers. This series is designed to replace three parallel DO-5 diodes, offering a lower profile and easier mounting solution. The modules are characterized by their unique high power Half-Pak packaging and are engineered for high-frequency operation within switching power environments.

Replacement Considerations

The datasheet indicates the module replaces three parallel DO-5 diodes.