New MLCCs meet the high-voltage demands of the EV industry

Samsung Electro-Mechanics releases a new range of MLCCs, meeting the growing demand for high-rated voltage solutions within the EV industry. These 1812-inch X7R MLCCs offer 2.2nF-470nF capacitance and, most notably, rated voltage up to 2000VDC.

The prevailing trend in EVs is the application of higher voltages to a growing list of power electronic components. In motion, the vehicle’s charging and distribution system supplies energy to the electric drive system, motors, and other subsystems. Initial generations of EVs connected these subsystems using 400V power rails. However, today's trend is towards 800V platforms, not just to take advantage of fast-charging technologies but also the greater efficiency of drivetrains at high torque or speed (from higher applied voltage).

This shift has obvious implications for key electronic components such as OBCs, motor drive inverters, DC-DC converters, WPTs, BMS, compressors, and pumps. All require the support of MLCCs providing high-rated voltage.

To carry a high voltage rating, MLCCs need several key engineering attributes. With this in mind, the latest solution from the company sees higher bending strength in the already substantial 1812-inch (4.5mm × 3.2mm) size by employing proprietary ceramics, micronising materials, and the application of innovative soft termination technology. These factors successfully combine to satisfy the high-voltage demands of the latest electronic components for EVs. As a point of note, the new MLCCs comply with AEC-Q200, the global standard for stress resistance that all passive electronic components must meet for use within the automotive industry.

Carrying the package codes CL43B222KJRRP#, CL43B224KHU6PJ# and CL43B474KEU6PJ#, mass production of these state-of-the-art MLCCs is underway. Suitable for operating temperatures up to 125C, all new MLCCs from Samsung Electro-Mechanics offer RoHS and REACH compliance. Samples are available upon request.