EV DC-DC converters benefit from new high-voltage MLCC

Samsung Electro-Mechanics has introduced the CL32B104KHU6PN# high-voltage MLCC for EV applications such as DC-DC converters. Mass production of the new X7R MLCC, which provides 100nF capacitance and a maximum rated voltage of 630V, is now underway.

MLCCs are becoming increasingly prevalent in modern automobiles as OEMs respond to consumer demands such as electrification and ever-higher functionality. Miniaturisation, high voltage, stability, and higher capacitance are among the further trends that are escalating the number of MLCCs mounted in a single vehicle.

In response to demands for optimal capacitor solutions that meet emerging trends, the company set out to develop its high-performance CL32B104KHU6PN# MLCC. Available in a compact 1210 (3.2mm x 2.5mm) form factor, this X7R (±15% capacitance change rate at -55C to 125) component provides a high-rated voltage of 630VDC. Furthermore, by expanding capacitance to 100nF in 1210, X7R, and 630V line-up, this exciting new product meets the miniaturisation and high-efficiency characteristics required for EV applications such as DC-DC converters and OBCs.

While higher voltages are required for propulsion, the air conditioner and the starter motor, a DC-DC converter converts high voltages to 12VDC to operate in-vehicle infotainment systems, for example. This type of DC-DC converter requires MLCCs for functions such as EMI filtering, specifically MLCCs that can provide high capacitance at high voltages. Samples are available on request.