125NQ015R

Overview

The Vishay 125NQ015R is a high-current Schottky rectifier module in the D-67 Half-Pak package. It features a maximum average forward current of 120 A and a repetitive peak reverse voltage of 15 V. The device exhibits an ultra-low forward voltage drop of 0.33 V at 120 A and 75°C junction temperature, with a maximum reverse leakage current of 40 mA at 25°C. It supports a junction temperature range from -55°C to 125°C and includes guard ring technology for enhanced ruggedness.

Feature Summary

• Optimized for ultra-low forward voltage drop specifically for OR-ing parallel power supplies
• Proprietary barrier technology allows reliable operation up to 125°C junction temperature
• Guard ring design provides enhanced ruggedness and long-term reliability
• High purity, high temperature epoxy encapsulation ensures mechanical strength and moisture resistance

Applications

• Parallel switching power supplies
• Converters
• Reverse battery protection
• Redundant power subsystems

Procurement Notes

Verify the specific suffix 'R' against official datasheets to confirm terminal polarity configuration, as it differs from the standard 125NQ015 variant. Ensure thermal interface materials are compatible with the specified case-to-heatsink thermal resistance requirements. Confirm that the mounting torque specifications align with the installation environment to maintain electrical integrity and prevent mechanical failure during operation.

Selection Notes

Select this component when low forward voltage drop is critical for efficiency in high-current applications. The 125NQ015R is suitable for designs requiring robust performance in redundant power architectures. Consider the D-67 package dimensions and thermal resistance values when designing heatsinking solutions. Verify that the operating junction temperature remains within the specified -55°C to 125°C range under all expected load conditions.

Part Context

This part belongs to Vishay's high-current Schottky rectifier series, designed for power supply modules. The D-67 Half-Pak package is engineered for high-power density applications. The product line emphasizes low forward voltage and high surge current capability, making it distinct from standard silicon rectifiers. It is intended for use in industrial and commercial power conversion systems where reliability and efficiency are paramount.

Replacement Considerations

The standard 125NQ015 is a direct functional substitute but has opposite terminal polarity (Lug Terminal Anode/Base Cathode vs. Lug Terminal Cathode/Base Anode). Verify pinout compatibility before substitution. No other equivalent part numbers are confirmed in the provided documentation.