As new energy vehicle manufacturers accelerate the adoption of 800V high-voltage fast-charging architectures, automotive DC-DC step-up/step-down circuits face multiple challenges, including high-voltage surges, wide temperature range fluctuations, and high-frequency switching interference. YMIN’s H/Q series high-voltage MLCCs, with their self-developed technology, have become the preferred devices for high-voltage DC-DC filtering and voltage regulation.
YMIN’s H series high-voltage MLCCs feature an optimized internal electrode structure, with a rated withstand voltage range of 630V~3000V, perfectly matching the redundant withstand voltage requirements of 800V busbars. They provide ample voltage safety margin, easily withstanding transient high-voltage surges upon power-on. The products utilize X7R/NPO dielectric, operating in a temperature range of -55℃~125℃, suitable for the enclosed, high-temperature conditions of engine compartments. Capacitance degradation is controllable under high and low temperature cycling, avoiding power supply oscillation faults caused by capacitance drops in high-voltage circuits.
Compared to traditional electrolytic capacitors, YMIN high-voltage MLCCs are compact, have ultra-low ESR, and excellent high-frequency characteristics. They efficiently absorb ripple current generated by SiC device switching, suppress EMI interference, optimize DC-DC conversion efficiency, and facilitate miniaturized PCB layouts for power supplies. The entire series has passed rigorous high-voltage aging and automotive-grade reliability verification, enabling domestic substitution of imported MLCCs and significantly reducing the overall material cost of high-voltage DC-DC systems.
From 400V entry-level high voltage to 800V ultra-high voltage fast charging platforms, YMIN high-voltage MLCCs, with their three core advantages of stable voltage withstand, low temperature drift, and superior high-frequency performance, solidify the stability of automotive DC-DC high-voltage circuits and facilitate the large-scale deployment of high-voltage architectures in new energy vehicles.
Post time: Jun-04-2026