As a high-density, high-efficiency power solution, the 1/8-brick DC-DC power module plays a critical role in modern electronic systems. With a standard dimension (length × width) of 57.9 mm × 22.7 mm, it features small size, high power density and excellent heat dissipation, making it suitable for applications with strict constraints on space and weight.
At present, continuous optimizations have been made to such modules in terms of input voltage range, output accuracy, efficiency and temperature adaptability. A typical product is the Z28E05M160NNA launched by Qingdao ZITN Technology Co., Ltd., which has an input voltage range of 16 V to 40 V, supports 50 V transient input, provides an output voltage of 5 V, a maximum output current of 32 A, and a rated output power of 160 W. Adopting fixed switching frequency PWM control, the module integrates multiple protection functions including input under-voltage lockout, output over-current, short-circuit, over-voltage and over-temperature protection, thus improving system reliability.
In terms of technology, 1/8-brick modules generally adopt multi-layer heavy-copper PCB and planar transformer technologies, which help enhance power density and heat dissipation performance. For instance, the Z28E05M160NNA further improves its resistance to vibration, shock and environmental stress via aluminum housing potting technology, making it ideal for high-reliability applications.
Such modules usually offer excellent electrical isolation, with an input‑to‑output isolation voltage of up to 1500 Vdc, complying with stringent safety and EMC requirements. Meanwhile, the modules support remote on/off control and output voltage adjustment (the Z28E05M160NNA, for example, supports an output voltage adjustment range of 80%~110%), facilitating system integration and flexible configuration.
With the advancement of power electronics technology, domestic 1/8-brick DC-DC modules have gradually approached or even reached international advanced levels in efficiency, power density and environmental adaptability, providing a reliable power supply option for the independent and controllable development of relevant equipment.
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