With high efficiency, high reliability and parallelling, the Brick DC-DC Converter is based on the patented PFM control circuit topology and embedding with silicone rubber sealed by metal base and plastic cavity, providing high-efficiency and high reliability DC/DC conversion output. It is completely compatible with the same series from Vicor and supports mixed insertion without changing any periphery parameters for replacement, ensuring easy use and providing about 5% higher conversion efficiency than the same series of Vicor; and the series also have comprehensive protections (against input over-voltage and under-voltage, output over-voltage, over-current, short circuit and over-temperature), enable control and fault monitoring functions. The product design and manufacture comply with the General Specification for Microcircuit Modules (SJ20668-1998), and are ideally for onboard, missile-borne, vehicle-mounted, ship-based electronic systems, TR components and other highly reliable electronic systems.