15nF/1.25kV C0G MLCC in compact 3225M size

Murata announces the launch and mass production of its multilayer ceramic capacitor (MLCC) featuring a capacitance of 15nF, a rated voltage of 1.25kV, and C0G characteristics in the compact 3225M (3.2mm x 2.5mm / 1210-inch) size. This delivers highly efficient power conversion and stable performance under high-voltage conditions, making it suitable for onboard chargers (OBCs) in electric vehicles (EVs) and power supply circuits in high-performance consumer devices.

Resonant and snubber circuits are essential for efficient power conversion and suppressing current and voltage peaks. In both circuits, repeated exposure to high voltage and high current can cause even slight changes in component performance, leading to efficiency loss or heat generation and potentially causing malfunction or failure.

Recent trends also show a shift in power supply switching devices from silicon MOSFETs to silicon carbide (SiC) MOSFETs, which enable higher efficiency and faster switching. SiC MOSFET applications require breakdown voltages of 1.2kV, driving demand for capacitors with ratings exceeding this specification. These applications, therefore, require capacitors that maintain stable performance across wide temperature ranges, minimise power loss, and withstand high operating voltages.