ROHM develops 100V power MOSFET suitable for AI server 48V power hot swappable circuit

~Certified as a recommended device by globally renowned cloud platform enterprises, it combines a wider SOA range and lower on resistance~

Shanghai, China, June 3, 2025- Global renowned semiconductor manufacturer ROHM (headquartered in Kyoto, Japan) announced today that it has developed a 100V withstand voltage power MOSFET * 1 "RY7P250BM", which is an ideal choice for 48V power hot swappable circuits * 2 for AI servers and industrial equipment power supplies that require battery protection.

RY7P250BM is an 8 × 8mm MOSFET, and it is expected that the demand for this size product will continue to grow in the future, making it an easy replacement for existing products. In addition, the new product simultaneously achieves a wider SOA range * 3 (conditions: VDS=48V, Pw=1ms/10ms) and lower on resistance (RDS (on)) * 4, ensuring higher product reliability during hot plugging (power on) operation, optimizing power efficiency, reducing power consumption, and minimizing heat generation.

In order to balance the stable operation and energy saving of servers, hot swappable circuits must have a wide SOA range to withstand high current loads. Especially the hot swappable circuit of AI servers requires a wider SOA range compared to traditional servers. The SOA of RY7P250BM can reach 16A at a pulse width of 10ms and 50A at 1ms, achieving industry-leading performance and capable of handling high load applications that were previously difficult to support with MOSFETs.

RY7P250BM is a MOSFET with an industry wide SOA range and achieves lower on resistance, significantly reducing power loss and heat generation when powered on. The on resistance of ordinary 8 × 8mm 100V withstand voltage MOSFETs with a wide SOA range is mostly about 2.28m Ω, while the on resistance of RY7P250BM is reduced by about 18% - only 1.86m Ω (conditions: VGS=10V, ID=50A, Tj=25 ℃). This low on resistance helps improve the efficiency of server power supply, reduce cooling load, and lower power costs.

At the same time, RY7P250BM has also been certified as a recommended device by globally renowned cloud platform enterprises, and is expected to be widely used in the field of AI servers in the future. In the field of servers that prioritize reliability and energy efficiency, the RY7P250BM has received high praise for its wider SOA range and lower on resistance balance in cloud applications.

The new product has been put into mass production at a scale of 1 million units per month (sample price of 800 yen per unit, excluding tax). The production base for the previous process is ROHM Co., Ltd. (Shiga factory in Japan), and the production base for the subsequent process is OSAT (Thailand). In addition, the new product has started to be sold through e-commerce and can be purchased through e-commerce platforms.

In the future, ROHM will continue to expand its product lineup for 48V power supplies for servers and industrial equipment, contributing to the construction of sustainable ICT infrastructure and energy conservation by providing efficient and reliable solutions.

<Development Background>

With the rapid development of AI technology, the load on data centers has increased sharply, and server power consumption has also been rising year by year. Especially with the increasing popularity of servers equipped with generative AI and high-performance GPUs, balancing the conflicting needs of further improving power efficiency and supporting high currents has always been a challenge. In this context, the 48V power supply system, which has higher conversion efficiency compared to traditional 12V power supply systems, is accelerating its application expansion. In addition, in the hot swappable circuit for module replacement while the server is running, MOSFETs with a wider SOA range and lower on resistance are required to prevent damage caused by surge current * 5 and overload. The new product "RY7P250BM" has an industry wide SOA range and ultra-low on resistance in an 8 × 8mm size, which helps reduce power loss and cooling load in data centers, thereby improving server reliability and achieving energy savings.

Main features of the product

<Application Example>

48V system power hot swappable circuit for AI servers and data centers

48V system power supply for industrial equipment (forklifts, power tools, robots, fan motors, etc.)

Battery powered industrial equipment such as AGV (Automated Guided Vehicle)

UPS、 Emergency power system (battery backup unit)

E-commerce Sales Information

Release date: May 2025 onwards

The new product will also be gradually released on other e-commerce platforms.

Product model: RY7P250BM

<About EcoMOSTM brand>

EcoMOSTM is a Si power MOSFET brand developed by ROHM, which is highly suitable for energy-saving applications in the field of power components.

EcoMOSTM has a rich product lineup and has been widely used in fields such as household appliances, industrial equipment, and automotive. Customers can choose products from the product lineup based on various parameters such as noise performance and switch performance according to application requirements.

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<Terminology Explanation>

*1) Power MOSFET

A MOSFET suitable for power conversion and switching applications. At present, Nch MOSFETs that conduct by applying a positive voltage to the gate relative to the source are mainstream products. Compared with Pch MOSFETs, they have the characteristics of low on resistance and high efficiency. Due to its ability to achieve low loss and high-speed switching, it is widely used in applications such as power circuits, motor drive circuits, and inverters.

*2) Hot swappable circuit

The entire circuit that supports hot swapping and allows for the insertion or removal of components while the device is powered on. Composed of MOSFETs, protective components, and connectors, it is responsible for suppressing surge currents generated during component insertion and providing overcurrent protection to ensure the safe operation of the system and connected components.

*3) SOA (Safe Operating Area) Scope

The voltage and current range within which the components are undamaged and can operate safely. Working beyond this safe working area may result in thermal runaway or damage, especially in applications where surge currents and overcurrent may occur, and the SOA range needs to be considered.

*4) On resistance (RDS (on))

The resistance value between the drain and source of a MOSFET during operation (conduction). The smaller the value, the less power loss occurs during operation.

*5) Inrush current

The large current that instantly flows beyond the rated current value when the electronic device is powered on. By controlling surge current, it can prevent equipment damage and improve system stability, as it can cause load on components in the power circuit.

(End)

Regarding ROHM

ROHM was founded in 1958, starting with the production of its main product - resistors. After more than half a century of development, it has become a world-renowned semiconductor manufacturer. ROHM's corporate philosophy is: "We always put product quality first. No matter how difficult we encounter, we will continuously provide a large number of high-quality products for domestic and foreign users, and contribute to the progress and improvement of culture.

ROHM's production, sales, and research and development networks are distributed around the world. The product involves multiple fields, including IC, discrete components, optical components, passive components, power components, modules, etc. In the global electronics industry, ROHM's numerous high-quality products have been approved and praised by the market, becoming a leading enterprise in system IC and advanced semiconductor technology.

Regarding ROHM's Business Development in China

Sales outlets: In order to quickly and accurately respond to the expanding demands of the Chinese market, ROHM has established a vertically integrated system in China that integrates development, sales, and manufacturing, similar to the headquarters. As a characteristic of Roma, we actively carry out sales activities that are closely related to customers, striving to provide thoughtful services to them. At present, there are 20 sales outlets in China, including Shanghai, Shenzhen, Beijing, Dalian, Tianjin, Qingdao, Nanjing, Hefei, Suzhou, Hangzhou, Ningbo, Xi'an, Wuhan, Dongguan, Guangzhou, Xiamen, Zhuhai, Chongqing, Hong Kong, and Taiwan. And it is gradually expanding its distribution network.

Technical Center: We have technical centers and QA centers in Shanghai and Shenzhen, and a North China Technical Center in Beijing, providing technical and quality support. The technology center is equipped with development and design support personnel who are proficient in various markets, and can provide comprehensive solutions from software to hardware in the form of technical proposals tailored to customer needs. And when there is a defect in the product, the QA center will respond to the appeal within 24 hours.

Production bases: Production factories were established in Tianjin (ROHM Semiconductor (China) Co., Ltd.) and Dalian (ROHM Electronics Dalian Co., Ltd.) in 1993. Conducting diodes in Tianjin LED、 The production of laser diodes, LED displays, and optical sensors is carried out in Dalian, where power modules, thermal print heads, contact image sensors, and optical sensors are produced. As the main production base of ROHM, we continuously provide high-quality products to China and abroad.

Social contribution: ROHM is also committed to strengthening cooperation with numerous research institutions and enterprises at home and abroad, actively promoting research and development activities of industry university research cooperation. In 2006, we signed a framework agreement with Tsinghua University to actively engage in the development of advanced electronic component technologies. In 2008, Tsinghua University donated funds to build the "Tsinghua ROHM Electronic Engineering Museum", which was completed in April 2011. In 2012, the "Tsinghua Rom Joint Research Center" was established at Tsinghua University, engaged in joint research projects such as optical components, communication broadcasting, biochips, SiC power device applications, non-volatile processor chips, sensors and sensor network technology (structural facility health monitoring), artificial intelligence (machine health detection), etc. In addition to Tsinghua University, ROHM has also engaged in industry university cooperation with several well-known universities in China, continuously achieving fruitful results.

Based on the accumulated technical strength, high quality, and reliability over the years, ROHM will build a solid cooperative relationship with customers through a solid technical support and customer service system that integrates development, production, and sales. As a company rooted in China, ROHM will make positive contributions to improving customer product strength, customer business development, and China's energy conservation and environmental protection cause.

This is reported by Top Components, a leading supplier of electronic components in the semiconductor industry

They are committed to providing customers around the world with the most necessary, outdated, licensed, and hard-to-find parts.

Media Relations

Name: John Chen

Email: salesdept@topcomponents.ru