Compact Inductors - Wire-Wound Inductors Save Space and Increase DC-DC Converter Efficiency

Smyrna, GA, March 31, 2009 - Murata Electronics North America, a world-leading innovator in electronics and the largest global supplier of ceramic passive components, today introduced the new LQH44P wire-wound inductor series. Developed to increase DC-DC converter efficiency, the compact inductors save valuable board space, measuring only 4.0mm x 4.0mm x 1.65mm. With its low DC resistance, the high rated current series is ideal for DC-DC converter circuits in electrical appliances such as television sets, digital cameras, laptop computers and portable electronic equipment.

“The new inductor series furthers Murata’s goal of providing quality components in increasingly smaller packages,” said Deryl Kimbro, product manager for Murata Electronics North America. “At Murata, miniaturization goes hand-in-hand with innovation.”

In addition to the small size and low DC resistance (0.03Ω through 0.37Ω), the LQH44P series features seven parts with inductance between 1µH and 22µH and a rated current of up to 2.95A. Further, the inductors are magnetically shielded to prevent interference and operate in the temperature range of -40 to +85°C. Priced at 20 cents, the LQH44P series is budget conscious. Lead time is approximately six to eight weeks.

Murata offers a variety of coils/inductors, including choke coils with low DC resistance for power supply circuits, general-purpose chip coils suitable for voltage increases and high-frequency chip coils that provide low-loss and high-Q characteristics at high frequencies. Users can select the optimum characteristics by choosing from monolithic, film or wire wound construction and a wide range of inductance values and tolerances, with some types allowing for magnetic shielding. In addition to traditional chip coils, Murata also provides a range of miniature delay lines offering excellent delay accuracy.