Taiyo Yuden Intros New NR3012 Series Power Inductors

Taiyo Yuden (USA) Inc. (Schaumburg, IL) introduced its new NR3012 Series of 1.2 mm high, 3 mm x 3 mm, low-profile, wire-wound power inductors, which are suitable for power-circuit applications in battery-powered portable electronic equipment. Now available in 65 different models in both 3 mm x 3 mm and 4 mm x 4 mm, low-profile form factors, the 1.2 mm NR3012 Series increases dc-dc converter design flexibility by allowing engineers to optimize inductor performance via the best combination of case size, profile, current rating, and resistance characteristics. Other 3 mm x 3 mm power inductors, available in 1.0 mm (NR3010) and 1.5 mm heights (NR3015), were optimized for cell phones and digital cameras, respectively.

The 11 models in the new NR3012 Series offer a selection of high conversion efficiency, a rated current of 250 mA to 1,490 mA, and inductance ratings of 1.0 µH to 47 µH for similar applications and component sizes.

Rather than employing conventional round drum/sleeve core technology, the NR Series offers a sleeveless, square-core winding that eliminates all wasted space and thickens the lead wire inside the inductor to achieve the lowest possible Rdc. The NR Series' special ferrite-based resin covering further reduces component size and enables higher current. The sleeveless structure also provides mechanical shock resistance; in drop tests onto concrete from 6 ft (1.8 m), the NR Series inductors experienced negligible failure rates due to cracking, disassembly, or separation from the test PCB.

Sample pricing for the NR301x Series wire-wound power inductors is $0.30 each. Available now in volume production quantities, delivery is two weeks ARO.