ROHM expands chip resistor portfolio

The new lineup includes the high-power MCRS series and low-resistance, high-power MCRL series.

In today's age of advancing functionality and electrification, the increased miniaturisation and improved performance of electronic components have become essential issues. This is especially evident in the automotive market, where the growth of electric vehicles is accelerating the use of electronic components. Similarly, the industrial equipment market is experiencing growing demand for compact, high performance electronic components as machinery becomes more functional and efficient. ROHM addresses both of these needs with the MCRx family of compact, high-performance resistors.

The MCRS series improves rated power and Temperature Coefficient of Resistance (TCR) characteristics by optimising the internal structure and incorporating new materials, enabling use in a smaller size compared with conventional products. A broad lineup in sizes ranging from 0402-size (0.04inch × 0.02inch) / 1005-size (1.0mm × 0.5mm) to 2512-size (0.25inch × 0.12inch) / 6432-size (6.4mm × 3.2mm) is available, making it possible to select the suitable product based on mounting space requirements.

In doing so, this leads to a compact, efficient circuit design, significantly increasing design flexibility. Meanwhile, the MCRL series, a low-resistance variant of the MCRS series, is offered in sizes ranging from 0805-size (0.08inch × 0.05inch) / 2012-size (2.0mm × 1.2mm) to 2512-size (0.25inch × 0.12inch) / 6432-size (6.4mm × 3.2mm) ideal for current detection applications.

The MCRx family adopts a redesigned internal structure, improving production efficiency, quality, and product reliability across all sizes. Compliant with the AEC-Q200 automotive reliability standard, this series meets the increasing demand for electric vehicles while contributing to market expansion in communications infrastructure such as base stations and servers as well as factory automation equipment. Additionally, the products are designated for long-term stable supply, supporting continuous use in long-life applications such as industrial equipment.

The MCRS series will be expanded to include compact 0201-size (0.024inch × 0.012inch) / 0603-size (0.6mm × 0.3mm) products capable of withstanding temperatures up to +155°C. At the same time, the MCRE series will soon offer completely lead-free 01005-size (0.016inch × 0.008inch) / 0402-size (0.4mm × 0.2mm) products. These additions will allow ROHM to respond to the demand for further miniaturisation while complying with environmentally-driven voluntary regulations and export restrictions.

Looking ahead, ROHM is focused on developing and manufacturing products that cater to the diverse needs of customers worldwide. In particular, ROHM will continue to expand its lineup of resistors (its founding products) that improve miniaturisation and reliability while ensuring long-term stable supply. By consistently delivering new value through technological innovation, ROHM seeks to strengthen its market position and drive the evolution of electronic components.