Wire Wound Chip Coils suit high-frequency circuits.

Press Release Summary:

Measuring 0.8 x 0.4 mm, 03015 EIA sized Series LQW04A features inductance from 1.1-22 nH with inductance tolerance of ±0.5 nH/±5% and Q values ranging from 55-75 in GHz range. Horizontally wound structure minimizes parasitic losses. Coils are suited for high-frequency circuits used in mobile devices such as cell phones and PDAs.

Original Press Release:

Murata Introduces Miniature High-Frequency Wire Wound Chip Coils

SMYRNA, Ga., Jan. 9 -- Murata Electronics North America, a world-leading innovator in electronics and the largest global supplier of ceramic passive components, today introduced a miniature high-frequency wire wound type chip coil (LQW04A series). The 03015 EIA sized coils (0.8mm X 0.4mm) were developed using advancements in mounting techniques and materials. Murata's chip coils are ideally suited for high-frequency circuits used in mobile devices such as cell phones and Personal Digital Assistants (PDAs).

Compared to the traditional size of EIA 0402 wire wound chip coils, the new LQW04A series reduces the mounting area by 40 percent and the height is a diminutive 0.4mm. These technology advancements also lay the groundwork for future production of even smaller and lower profile devices. The smaller size is a benefit to engineers who strive to create condensed profile devices.

In addition to designing a compact component, Murata's new series boasts stable inductance with high self-resonance frequency, as well as high Q-values at high frequencies. These ideal characteristics were achieved by adopting a horizontally-wound structure which minimizes parasitic losses.

"Murata's unique ability to provide smaller components with improved features demonstrates our ongoing commitment to anticipate market demands," said Deryl Kimbro, product manager EMI filters and chip inductors for Murata Electronics North America. "The advancements in Murata's coil manufacturing technology, as seen in the LQW04A series, is a true testament of our research and development strength."

The LQW04A series inductance is 1.1-22nH and includes the inductance tolerance of +/-0.5nH/+/-5%. Q values range from 55 to 75 in the GHz range. Murata's new high-frequency wire wound type chip coils are available for the sample price of $0.10. Additional purchasing info can be found online at www.murata.com/. Lead time is approximately six to eight weeks.

Murata offers a variety of coils, including choke coils with low DC resistance intended 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. Some types also allow for magnetic shielding. In addition to traditional chip coils, Murata also designs a range of miniature delay lines with excellent delay accuracy.

About Murata Electronics North America (http://www.murata.com/)
Murata Manufacturing Co., Ltd., established in 1944, is a global leader in the design, manufacture and sale of ceramic based passive electronic components and modules. With annual revenues in excess of $3 billion, Murata is committed to the development of advanced electronic materials and leading edge, multi-functional, high-density modules. Murata utilizes gallium arsenide (GaAs) and multilayer LTCC technology as core components of next generation products. Products include: RF & Microwave Front End Filters, VCO's, Bluetooth modules, I.F. Filters, Sensors, Chip Multilayer and Chip Dielectric Antennas, RF Diode Switches, Baluns, Isolators, Coaxial Connectors, DC - DC Converters, Traps, Discriminators, Ceramic Capacitors, EMI Filters, Inductors, Piezoelectric Alarms, Ceramic Resonators, Trimming Potentiometers, Trimming Capacitors and Thermistors. The Company is headquartered in Kyoto, Japan, has some 27,000 employees and manufacturing facilities throughout the world.

CONTACT: Chinita Hayden of Murata Electronics North America, +1-770-433-5782, chayden@murata.com

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