Infineon K15T120: Technical Specifications and Application Overview

The Infineon K15T120 is a robust N-channel IGBT (Insulated Gate Bipolar Transistor) engineered for high-power switching applications. As a key component in power electronics, it combines high current capability with low saturation voltage, making it a preferred choice for designers seeking efficiency and reliability in demanding environments.

Technical Specifications

The K15T120 is characterized by its impressive electrical ratings. It boasts a collector-emitter voltage (V CES) of 1200 V, making it suitable for high-voltage circuits commonly found in industrial systems. Its nominal collector current (I C) is 15 A at 100°C, ensuring strong performance under continuous operation. A critical feature is its low saturation voltage (V CE(sat)), typically 2.05 V at I C = 15A, which directly translates to reduced conduction losses and higher overall system efficiency.

The device is packaged in the industry-standard TO-247 package, which offers excellent thermal performance and mechanical durability. This package is designed for easy mounting onto heat sinks, which is essential for dissipating the heat generated during high-current operation. The IGBT also includes a co-packaged ultra-fast soft recovery diode, which is crucial for managing reverse recovery currents and enhancing the reliability of inductive load switching.

Application Overview

The primary strength of the K15T120 lies in its versatility across various high-power domains. Its most prominent application is in motor control and drive systems. It is extensively used in the power stages of variable frequency drives (VFDs) for controlling AC motors in industrial automation, HVAC systems, and pumping applications.

Furthermore, it is an excellent choice for Uninterruptible Power Supplies (UPS) and inverters, particularly in systems requiring high switching efficiency and robustness. The 1200V voltage rating makes it well-suited for three-phase inverter topologies that operate from a standard rectified mains voltage. Additionally, it finds use in welding equipment and induction heating systems, where its ability to handle high currents and switching frequencies is critical.

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DFIND Summary:

The Infineon K15T120 is a high-voltage, high-current IGBT that stands out for its low saturation losses and integrated fast diode. Its robust TO-247 package and strong electrical characteristics make it an ideal semiconductor solution for efficient and reliable power conversion in industrial motor drives, UPS systems, and high-power inverters.

Keywords:

IGBT

High-Power Switching

Motor Drives

Low Saturation Voltage

TO-247 Package