Magnachip Launches 15 New Gen6 E6 Super-Junction MOSFETs for TVs, Notebook Adapters and PC Power Supplies

Magnachip Semiconductor (MX) has launched 15 new sixth-generation E6 super-junction MOSFETs, power-switching semiconductors for consumer and computing power applications.

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- Well-Balanced thermal, switching and EMI performance for compact power designs
- 500 V and 600 V options for greater flexibility in PCB layout and thermal design

SEOUL, South Korea--(BUSINESS WIRE)-- Magnachip Semiconductor Corporation (NYSE: MX, “Magnachip”) today announced the expansion of its power semiconductor portfolio with 15 new sixth-generation (Gen6) E6 super-junction (SJ) MOSFETs for consumer and computing power applications.

As consumer and computing systems deliver higher performance in increasingly compact form factors, power designers need to manage efficiency, thermal performance, switching noise and PCB space simultaneously. Voltage ratings, on-resistance values and package requirements also vary according to system power levels and PCB design constraints, making MOSFET selection increasingly important.

The new E6 Series addresses these challenges with a balanced combination of thermal, switching and EMI performance. The MOSFETs are designed to help manage switching losses and oscillation while supporting design margin for voltage transients and avalanche conditions. These characteristics can help designers reduce thermal stress and switching noise in compact power designs while maintaining margin for normal operating and transient conditions.

Magnachip tested its 600 V, 280 mΩ E6 MOSFET in a TO-220SFA package in the power factor correction (PFC) stage of a TV switch-mode power supply (SMPS). At a 100 Vac input and under the same test conditions, the E6 MOSFET operated at approximately 5.3% lower temperature than Magnachip’s previous-generation MOSFET. This result indicates the potential of the E6 Series to offer additional thermal design margin in comparable PFC circuits.

The E6 Series includes 500 V and 600 V MOSFETs. The 600 V lineup offers DPAK (TO-252), TO-220FA and TO-220SFA packages across key on-resistance classes, allowing designers to choose from a range of MOSFET options to better align with their thermal and PCB mounting requirements while achieving the required Rds (on) rating.

“As power systems become more compact, designers need MOSFETs that help them manage heat and switching noise while meeting efficiency targets,” said Hyuk Woo, Chief Technology Officer of Magnachip Semiconductor. “We developed the E6 Series around these requirements for TV and computing power applications, offering customers performance and package options suited to their operating conditions.”

The E6 portfolio targets TV SMPS, notebook adapters, PC power supplies, and consumer and industrial power applications below 1 kW. The MOSFETs are now in mass production.

Resources:

Product brief: https://www.magnachip.com/wp-content/uploads/2026/09/E6_SJ_MOSFET_ProductBrief-3.pdf

Related Links:
Power Solutions > SJ MOSFETs > 500V
Power Solutions > SJ MOSFETs > 600V

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Magnachip Launches New 6th-Generation 600V SJ MOSFETs for AI Servers and EV Charging Applications

About Magnachip Semiconductor

Magnachip is a designer and manufacturer of analog and mixed-signal power semiconductor platform solutions for various applications, including industrial, automotive, communication, consumer and computing. The Company provides a broad range of standard products to customers worldwide. Magnachip, with about 45 years of operating history, owns a substantial number of registered patents and pending applications, and has extensive engineering, design and manufacturing process expertise. For more information, please visit www.magnachip.com. Information on or accessible through Magnachip’s website is not a part of, and is not incorporated into, this release.

View source version on businesswire.com: https://www.businesswire.com/news/home/20261005602857/en/

Mike Bishop
United States (Investor Relations)
Bishop IR, LLC
Tel. +1-415-891-9633
mike@bishopir.com

Kyeongah Cho
Global Marketing Communication
Magnachip Semiconductor
Tel. +82-2-6903-3179
pr@magnachip.com

Source: Magnachip Semiconductor Corporation

Key Terms

mosfet technical

A MOSFET is a tiny electronic switch used to control the flow of electricity in chips and circuits, functioning like a faucet that turns current on or off and adjusts how much passes through. Investors watch MOSFETs because their performance, cost and availability affect product power efficiency, manufacturing yields and supply chains for industries from consumer electronics to electric vehicles, which in turn can influence companies’ margins and growth prospects.

emi technical

An EMI is a UK tax-advantaged employee share option plan that lets a company grant executives and staff the right to buy shares at a preset price after a vesting period. It matters to investors because it aligns employees’ incentives with company performance—like giving key workers a stake in the business—while potentially diluting existing shareholders and changing future earnings per share when options are exercised.

rds (on) technical

Rds(on) is the drain-to-source on-resistance of a MOSFET or similar transistor: the electrical resistance measured between the drain and source terminals while the device is turned on (gate driven to its specified on-voltage). It is reported in ohms under specified gate voltage and temperature and determines how much voltage the transistor drops and how much heat it dissipates when conducting; the value changes with gate drive, temperature and current, so data-sheet Rds(on) numbers apply only under the stated test conditions.