KD421K15

KD421K15 Description

is a dual Darlington transistor module that contains two high-current, high-gain Darlington transistors in a single package. Each transistor consists of two PNP transistors connected in a Darlington configuration, which provides a high current gain and a low saturation voltage. The module is designed for use in a wide range of applications, including motor control, power supply regulation, and audio amplification. The KD421K15 module is housed in a TO-3P package, which is a popular form factor for high-power semiconductors. The package has three leads, with the center lead connected to a metal tab that serves as a heat sink for the transistors. The module is rated for a maximum collector current of 5A and a maximum collector-emitter voltage of 120V. The typical DC current gain of each transistor is 1000, and the typical saturation voltage is 1.5V at a collector current of 3A.

Summary of Features

KD421K15 is a(n) 1000V, 150A Power Transistor Module. .

Target Applications

KD421K15 and other IGBT (Insulated Gate Bipolar Transistor) transistor modules find applications in various industries and systems where high power switching is required. Some common applications include:

• Industrial Drives: IGBT modules are widely used in variable frequency drives (VFDs) and servo drives for controlling the speed and torque of electric motors in industrial machinery.
• Renewable Energy: Inverter systems for solar photovoltaic (PV) and wind power generation utilize IGBT modules for converting DC power from solar panels or wind turbines into AC power suitable for the grid.
• Electric Vehicles (EVs): IGBT modules are employed in the power electronics of electric and hybrid vehicles for converting the battery DC voltage to the AC voltage required by the electric motor.
• Railway Traction: IGBT modules are utilized in traction systems for electric trains and trams to control the speed and acceleration of the vehicles.
• Power Supplies: High-power IGBT modules are used in switch-mode power supplies (SMPS) and uninterruptible power supplies (UPS) for efficient power conversion and voltage regulation.
• Welding Equipment: Inverter-based welding machines use IGBT modules for precise control of welding current and voltage.
• HVAC Systems: Heating, ventilation, and air conditioning (HVAC) systems utilize IGBT modules in variable speed compressors and fans for energy-efficient operation.
• Medical Equipment: IGBT modules are employed in various medical equipment such as MRI machines, X-ray generators, and medical lasers for power control and conversion.
• Power Transmission: High-voltage direct current (HVDC) transmission systems utilize IGBT modules in converters for efficient long-distance power transmission.
• Motor Drives: IGBT modules are used in motor drives for controlling the speed and torque of large industrial motors in applications such as pumps, fans, and compressors.

These are just some examples, and the use of IGBT modules continues to expand into new areas as technology advances and the demand for high-power switching solutions grows.

Download KD421K15 Datasheet

Download KD421K15 Datasheet