Wire-Wound Power Inductors
Taiyo Yuden introduces the NR3012 series of 1.2 mm (height) 3 × 3 mm power inductors designed for power-circuit applications in battery-powered portable electronic equipment. The NR3012 series allows engineers to optimize their DC/DC converter designs to a higher degree through a broad selection of possible combinations of power inductor case size, profile, Rdc value and current rating. The popularity of existing NR inductors, including the new NR3012 series, lies in their ability to provide the high current from a very small component size. This performance attribute was achieved through a combination of advanced material science and a new structural design. Instead of employing conventional round drum/sleeve core technology, the company developed a unique sleeveless square-core winding that successfully eliminates all wasted space and thickens the lead wire inside the inductor to achieve one of the lowest possible Rdcs.