ROHM’s New 5th Generation P-Channel MOSFETs Deliver Low ON Resistance

By Tiera Oliver

Associate Editor

Embedded Computing Design

February 11, 2021


ROHM’s New 5th Generation P-Channel MOSFETs Deliver Low ON Resistance

ROHM developed low ON resistance -40V / -60V P-channel MOSFETs compatible with 24V input, utilizing a 5th generation refined process.

ROHM Semiconductor announced a 24-model lineup of 24V input, -40V / -60V withstand voltage P-channel MOSFETs available in both single (RqxxxxxAT / RdxxxxxAT / RsxxxxxAT / RFxxxxxAT) and dual configurations (UTxxx5/QHxxx5/SHxxx5). These new devices are ideal for industrial and consumer applications, such as factory automation, robotics, and air conditioning systems.

Based on ROHM’s P-channel MOSFET structure, these new products leverage process technology to achieve low ON resistance per unit area in their class. For the new -40V products, this translates to 62% lower ON resistance than conventional products, and 52% lower ON resistance for the new -60V products. 

Per the company, quality is improved by optimizing the device structure and adopting a new design that mitigates electric field concentration. As a result, both high reliability and low ON resistance (which are typically in a trade-off relationship) are achieved. These solutions contribute to stable long-term operation in industrial equipment demanding suitable quality.

ROHM continues to develop a variety of packages for a range of applications, including products optimized for the automotive sector. In addition to these 5th generation P-channel MOSFETs, to strengthen ROHM’s lineup for 5G base stations and data center servers, the company is developing higher efficiency N-channel MOSFETs. These products are designed to contribute to reducing application design load while increasing efficiency and reliability. 

The low ON resistance -40V / -60V P-channel MOSFETs are available in mass production.

For more information, visit:


Tiera Oliver, Associate Editor for Embedded Computing Design, is responsible for web content edits, product news, and constructing stories. She also assists with newsletter updates as well as contributing and editing content for ECD podcasts and the ECD YouTube channel. Before working at ECD, Tiera graduated from Northern Arizona University where she received her B.S. in journalism and political science and worked as a news reporter for the university’s student led newspaper, The Lumberjack.

More from Tiera