New general-purpose chip resistors contribute to greater miniaturisation

ROHM has extended its portfolio of general-purpose chip resistors with the MCRx family. It is designed to attain greater miniaturisation and improved performance across a variety of applications. The new lineup includes the high-power MCRS and low-resistance, high-power MCRL series.

In today's era of advancing functionality and electrification, the increased miniaturisation and improved performance of electronic components have become critical issues. This is particularly evident in the automotive market, where the proliferation of xEVs is accelerating the usage 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. The company addresses these needs with the MCRx family of compact, high-performance resistors.

The series improves rated power and TCR characteristics by optimising the internal structure and incorporating new materials, allowing use in a smaller size compared to conventional products. A comprehensive lineup in sizes ranging from 0402-size (0.04" × 0.02") / 1005-size (1mm × 0.5mm) to 2512-size (0.25" × 0.12") / 6432-size (6.4mm × 3.2mm) is available, making it possible to select the ideal product based on mounting space requirements. This leads to a compact, efficient circuit design, greatly increasing design flexibility. Meanwhile, the MCRL series, a low-resistance variant of the MCRS series, is supplied in sizes ranging from 0805-size (0.08" × 0.05") / 2012-size (2mm × 1.2mm) to 2512-size (0.25" × 0.12") / 6432-size (6.4mm × 3.2mm) ideal for current detection applications.

The MCRx family adopts a redesigned internal structure, enhancing production efficiency, quality, and product reliability across all sizes. Compliant with the AEC-Q200 automotive reliability standard, this series meets the increasing demand for xEVs while contributing to market expansion in communications infrastructure such as base stations and, servers and factory automation equipment. Also, 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 (0.024" × 0.012") / 0603-size (0.6mm × 0.3mm) products capable of withstanding temperatures up to +155C. At the same time, the MCRE series will soon offer completely lead-free 01005-size (0.016" × 0.008") / 0402-size (0.4mm × 0.2mm) products. These additions will allow The company to respond to the demand for further miniaturisation while complying with environmentally-driven voluntary regulations and export restrictions.