High power thick film chip resistors deliver TCR characteristics

A thorough review of the resistive material allowed ROHM to improve rated power to 2W in the compact 2550 size (2.5x5.0mm, t=0.55mm) - four times higher than conventional short-terminal types - contributing to improved energy savings and greater miniaturisation in high power applications.

The new family is available in 48 values. In addition, optimisation of the element structure makes it possible to achieve TCR (temperature coefficient of resistance) characteristics among wide terminal thick-film chip resistors. The result is minimal resistance fluctuation due to temperature changes, enabling high accuracy current detection.

Recent years have seen a marked increase in the number of circuits used to monitor current in a variety of applications, spurring demand for current detection resistors for controlling and managing current. This significant growth in embedded components requires compact, high power resistors.

For applications demanding reliability, ROHM offers resistors that provide features such as high power, anti-surge, and sulfuration resistance that have been well-received in the industry.

Adding this new lineup of low-ohmic resistors enables support for a wider variety of applications. Going forward, ROHM will continue to leverage the latest, proprietary technologies and expertise to expand its portfolio with products optimised to customer needs.