Mitsubishi Electric and Semikron Danfoss Jointly Develop New Standard Package for 3-Level T-Type Circuit Power Semiconductor Modules

Mitsubishi Electric Corporation has jointly developed a new standard package (exterior including terminals) for power semiconductor modules with built-in 3-level T-type circuits (※1), used in power converters for industrial fields and power generation systems, with Semikron Danfoss Elektronik GmbH & Co. KG (hereinafter Semikron Danfoss), a German power semiconductor manufacturer.

This package is a package for power semiconductor modules for 3-level T-type circuit inverters, ensuring compatibility in both terminal arrangement and terminal functions between the company's "LV100 type" package for high-power bands and Semikron Danfoss's "SEMITRANS20" package.

In recent years, to achieve a decarbonized society, inverters used in power converters for industrial fields and power generation systems are required to further reduce power consumption and improve efficiency. The circuit configurations adopted for these are increasingly using 3-level circuits, which enable higher efficiency power conversion and miniaturization of peripheral components compared to conventional 2-level circuits, and power semiconductor modules used are also required to adapt to 3-level circuits.

The package jointly developed by our company and Semikron Danfoss incorporates 3-level T-type circuits, contributing to higher efficiency and miniaturization of inverters. Furthermore, by optimizing the arrangement and functions of main electrode terminals and control auxiliary terminals for 3-level T-type circuits, the degree of freedom in inverter design is also improved.

Going forward, by developing power semiconductor modules that adopt the new standard package respectively, both companies will contribute to the standardization of inverter designs for users.

This product is scheduled to be exhibited at "PCIM Expo & Conference 2026" (June 9-11, Nuremberg, Germany) and at exhibitions held in Japan, China, and other regions.

■ Features of the New Standard Package

1. Jointly developed a new standard package with compatibility with Semikron Danfoss, contributing to inverter design standardization

- Jointly developed a new standard package for power semiconductor modules, ensuring compatibility in terminal arrangement and functions, based on our company's "LV100 type" package for high-power bands and Semikron Danfoss's "SEMITRANS20" package.

- By developing products adopting the new standard package respectively in the future, both companies will contribute to inverter design standardization.

2. Incorporates 3-level T-type circuits, contributing to higher efficiency and miniaturization of inverters

- Integrates and incorporates complex circuit configurations required for 3-level T-type circuits into a single power semiconductor module package.

- Facilitates the design of 3-level T-type circuit inverters, which can achieve more efficient power conversion and miniaturization of peripheral components than inverters designed with conventional 2-level circuits, thus contributing to higher inverter efficiency and miniaturization.

3. Optimized terminal arrangement and functions for 3-level T-type circuit configurations, enhancing design freedom in high-power inverters

- Optimized arrangement of main electrode terminals for 3-level T-type circuits. This not only reduces parasitic inductance (※2) of the power semiconductor module but also simplifies the busbar design (※3) of the inverter.

- Equipped with control auxiliary terminals for the four elements required for controlling 3-level T-type circuit inverters. Optimizing the arrangement of these control auxiliary terminals contributes to simplifying the drive circuit design of inverters using 3-level T-type circuits.

- The optimized arrangement of main electrode terminals and control auxiliary terminals enhances design freedom in inverters using 3-level T-type circuits.

■ Product Specifications

Application

Industrial drive equipment, renewable energy systems

Connection

3-level T-type circuit (4 elements)

External Dimensions

100 mm × 144 mm × 40 mm

■ Trademark Information

SEMITRANS

Trademark or registered trademark of Semikron Danfoss.

■ Product Contact

Mitsubishi Electric Corporation, Power Device Works

1-1, Imajyuku Higashi 1-chome, Nishi-ku, Fukuoka 819-0192, Japan

■ About Semikron Danfoss Elektronik GmbH & Co. KG

Semikron Danfoss is a global manufacturer of power semiconductors, modules, and systems. With approximately 3,500 employees, they provide innovative solutions in industrial drives, renewable energy, and automotive sectors.

For more information, please visit: http://www.semikron-danfoss.com.

■ About Mitsubishi Electric Group

Under "Our Philosophy," the Mitsubishi Electric Group places sustainability at the core of its management and values the trust of all stakeholders, including society, customers, shareholders, and employees. While pursuing "profitability," "capital efficiency," and "growth," we aim to continuously create new value that solves social issues by staying connected with customers, thereby achieving sustainable growth in corporate value. With a history of over 100 years since its founding in 1921, the Group operates in businesses such as social systems, energy systems, defense and space systems, factory automation systems, automotive equipment, building systems, air conditioning and home appliances, digital innovation, and semiconductors/devices. With over 200 group companies worldwide and approximately 150,000 employees, the consolidated sales for fiscal year 2025 were 5,894.7 billion yen. For more details, please visit our official website.

※1 A circuit method that controls DC voltage with three levels of potential. Compared to conventional 2-level circuits, the output waveform is closer to a sine wave, enabling higher efficiency and miniaturization of peripheral components.

※2 An electrical characteristic that is desirable to reduce as it can lead to overvoltage failure etc. of the product during operation of the power semiconductor module.

※3 In designing an inverter using power semiconductor modules, the copper plate required to connect passive components such as capacitors and the power semiconductor module is called a busbar. Typically, busbars are optimized and created for each inverter.

＜Inquiries from Customers＞

Mitsubishi Electric Corporation, Semiconductor & Device First Business Division, Business Strategy Department

2-7-3 Marunouchi, Chiyoda-ku, Tokyo 100-8310, Japan

https://www.MitsubishiElectric.co.jp/semiconductors/powerdevices/contact/

＜Website＞

Power Semiconductor Devices Website

https://www.MitsubishiElectric.co.jp/semiconductors/powerdevices/