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Rohm redesigns chip resistors for higher power
February 12, 2025
Rohm has redesigned its general-purpose chip resistors for smaller, high power applications.
The MCRx family uses a redesigned internal structure, improving production efficiency, quality, and product reliability across all sizes and includes a high-power MCRS series up to 2W and low-resistance, high-power MCRL series.
The MCRS series improves rated power and TCR (Temperature Coefficient of Resistance) characteristics by optimizing the internal structure and incorporating new materials, enabling use in a smaller size compared to conventional products.
The devices range 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) for more compact, efficient circuit design, significantly increasing design flexibility.
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) and is particularly suitable for current detection applications.
The MCRx series is compliant with the AEC-Q200 automotive reliability standard for electric vehicle applications, including Battery Management Systems (BMS), powertrain control, Advanced Driver Assistance Systems (ADAS) and Electronic Control Units (ECUs) and infotainment systems. It can also be used in base stations and servers as well as factory automation equipment. In addition, the products are designated for long-term stable supply, supporting continuous use in long-life applications such as industrial equipment such as control systems for industrial robots, automated product line control systems and power inverters.
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.
The MCRE Series is completely lead-free for environmental requirements.
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