183NQ100R

Overview

The Vishay 183NQ100R is a high-current Schottky rectifier module in the D-67 Half-Pak package. It features a maximum average forward current of 180 A and a repetitive peak reverse voltage of 100 V. The device supports junction temperatures from -55 °C to 175 °C with a thermal resistance of 0.30 °C/W. Key electrical parameters include a maximum forward voltage drop of 0.95 V at 180 A, a peak non-repetitive surge current of 22,000 A (5 µs), and a maximum reverse leakage current of 4.5 mA at 25 °C.

Feature Summary

• Optimized for low reverse leakage current at elevated temperatures using proprietary barrier technology
• Designed as a direct replacement for three parallel DO-5 diodes with an easier-to-mount lower profile
• Encapsulated in high-purity, high-temperature epoxy for enhanced mechanical strength and moisture resistance
• Incorporates a guard ring structure to improve ruggedness and long-term reliability

Applications

• Switching power supplies
• DC-DC converters
• Free-wheeling diode circuits
• Reverse battery protection systems

Procurement Notes

Verify that the specific part number suffix matches the required terminal configuration, as the 'R' designation indicates reversed polarity compared to the standard version. Confirm compliance with industrial level qualification standards prior to integration. Ensure mounting surfaces are smooth and greased to achieve the specified typical thermal resistance of 0.15 °C/W between case and heatsink.

Selection Notes

Select this component when high-frequency operation and low forward voltage drop are critical for system efficiency. The unique Half-Pak module design simplifies assembly by replacing multiple discrete components. Consider the 175 °C junction temperature capability for applications requiring robust thermal performance without excessive cooling infrastructure.

Part Context

This component belongs to the 183NQ series of high-current Schottky rectifiers manufactured by Vishay General Semiconductor. The series utilizes specialized barrier technology to maintain performance under high thermal stress. The D-67 Half-Pak package provides a compact solution for high-power density designs, offering superior mechanical stability compared to traditional through-hole alternatives.

Replacement Considerations

The datasheet explicitly states that this module replaces three parallel DO-5 diodes. Verify that the alternative discrete configuration can match the 22,000 A surge current rating and the 0.30 °C/W thermal resistance specifications.