Product Overview

The VISHAY 120NQ045R is a high-performance Schottky rectifier diode, designed for demanding power conversion and rectification applications. Manufactured by Vishay, a global leader in electronic components, this device is engineered to deliver low forward voltage drop, high current capability, and excellent thermal stability. The VISHAY 120NQ045R offers superior switching performance compared to conventional diodes, ensuring higher system efficiency and reduced power losses in industrial and commercial power systems.

With its rugged construction, the VISHAY 120NQ045R is optimized for use in switch-mode power supplies (SMPS), freewheeling diodes in converters, and rectifiers in high-frequency inverters. It operates efficiently at elevated junction temperatures, making it suitable for environments where durability and reliability are paramount.

The compact package design simplifies mounting and thermal management, while its robust electrical parameters guarantee consistent operation under varying load conditions. This diode is widely applied in automation equipment, renewable energy systems, welding machines, and motor drives, providing both reliability and efficiency for mission-critical applications.

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Technical Specifications

Key Features and Benefits

The VISHAY 120NQ045R delivers a strong combination of power efficiency and durability, making it a preferred choice in modern power electronic designs.

One of its most significant advantages is its low forward voltage drop, which translates into reduced conduction losses and higher overall efficiency in systems such as rectifiers and inverters. Compared to traditional silicon diodes, this Schottky rectifier offers improved thermal characteristics, ensuring longer component life and enhanced stability even under continuous heavy loads.

Its high current capability (120 A) supports demanding industrial power applications, allowing it to handle large-scale rectification tasks without performance degradation. The rugged TO-247AC package ensures effective heat dissipation, simplifying thermal management in compact designs.

The diode also provides fast switching performance, minimizing reverse recovery losses and improving efficiency in high-frequency circuits. This makes the VISHAY 120NQ045R especially suitable for use in switch-mode power supplies, renewable energy inverters, and motor control applications where precise power regulation is required.

Another key advantage is its wide operating temperature range, which enhances reliability in harsh industrial environments, including power plants, welding equipment, and CNC drives. The component’s mechanical strength and high surge current capability further reinforce its suitability for heavy-duty applications.

Overall, the VISHAY 120NQ045R ensures optimized system performance, reduced energy losses, and long-term operational stability, providing engineers with a robust and cost-effective power rectification solution.

Related Models

• 120NQ060R – Higher reverse voltage variant (60 V) for applications requiring greater margin.

• 120NQ100R – Extended voltage version (100 V) for use in renewable energy systems.

• 80NQ045R – Lower current rating (80 A), suitable for medium-power systems.

• 150NQ045R – Higher current version (150 A) for heavy-duty rectification needs.

• 120CTQ045 – Dual common cathode Schottky rectifier with similar characteristics.

• 70HFR120 – Alternative high-frequency rectifier used in SMPS and inverter designs.

• 40CPQ045 – Compact, lower-current Schottky diode optimized for smaller systems.

• 120Q045 – Previous generation model offering similar electrical performance.