ROHM Unveils High-Power SDR01 Series Chip Resistors
News related to:ROHM Co., Ltd · 2 min read
KYOTO, Japan, Sept. 11, 2026 /CourierPR/ -- ROHM Co., Ltd., a leading manufacturer of semiconductor components, has unveiled the "SDR01 Series" of high anti-surge chip resistors, which achieve a remarkable 0.33W rated power in the 0402 (1005 metric) size. This innovative product line is designed to meet the growing demand for electronic components that combine compact size with high power handling, particularly in automotive, industrial, and consumer electronics applications.
The SDR01 Series has been specifically developed to address the need for smaller, more reliable chip resistors that can withstand surges and electrostatic discharge (ESD) while delivering high power capabilities. With the ongoing trend towards more highly functional electronic equipment, ROHM's new resistors are expected to play a significant role in the industry by offering solutions that can help reduce board space and component count.
According to the company, the SDR01 Series has been optimized through the careful design of its resistive element and electrodes. This optimization enables the resistors to maintain their high anti-surge performance while achieving the desired 0.33W rated power in the 0402 size. The new products guarantee 0.33W up to a terminal temperature of 125 degrees Celsius, making them suitable for use in demanding thermal environments such as high-density mounting and areas around heat-generating components.
Additionally, the SDR01 Series boasts a Temperature Coefficient of Resistance (TCR) of plus or minus 100 parts per million per degree Celsius, which is particularly effective for resistors with resistance values between 10 ohms and 2.2 megohms. This feature helps to minimize resistance value fluctuations caused by temperature changes, contributing to more stable circuit operation and supporting the development of smaller, more reliable power supply circuits and peripheral interface circuits.
ROHM's product development team has stated that the introduction of the SDR01 Series is part of the company's ongoing commitment to expanding its lineup of high-reliability chip resistors. The new resistors are expected to contribute significantly to the miniaturization, higher power handling, and enhanced reliability of electronic equipment across a wide range of applications.
The company notes that the SDR01 Series has been well-suited for use in automotive, industrial, and consumer electronics applications, where mounting densities continue to increase. The high anti-surge capabilities of these resistors are particularly valuable in power supply circuits and around interfaces, where protection against surges and ESD is critical. ROHM anticipates that the new products will be embraced by manufacturers looking to optimize their designs while maintaining the reliability required for these applications.
By introducing the SDR01 Series, ROHM is responding to the evolving needs of the market, where there is increasing demand for compact, high-power components. The company's investment in this technology is expected to provide a competitive edge in the highly competitive semiconductor industry, helping to drive innovation and performance in electronic devices.
Overall, the release of the SDR01 Series by ROHM Co., Ltd., marks a significant advancement in the field of high-reliability chip resistors, offering a compelling solution for manufacturers seeking to balance size and power in their designs.