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Murata Develops World's First 500 Volt, High Q MLCC with Base Metal Electrodes - Advanced GQM22 Series Offers Low ESR for High Frequency Applications

GQM22 Series Smyrna, GA, April 27, 2010 - Murata Electronics North America, a world-leading innovator in electronics and the largest global supplier of ceramic passive components, today introduced the GQM22 series, the world’s first 500 volt-rated, high Q monolithic ceramic capacitor (MLCC) with base metal electrodes. Ideal for high frequency applications such as power amplifiers for base stations, the advanced capacitor also provides low equivalent series resistance (ESR).

Developed using Murata’s new base metals technology and superior co-fired ceramic materials, the GQM22 series eliminates problems normally associated with base metal electrodes while providing improved features. The new capacitor does not require characteristic adjustments, an issue common with other base metal electrode high voltage capacitors, yet it offers a 40 percent improvement in Q at 1Mhz compared to general-purpose medium and high voltage capacitors. In addition, the GQM22 series (2.8mm x 2.8mm x 1.15mm) affords capacitance ranging from 0.5pF to 100pF and can be used for tight tolerance products around a capacitance tolerance of B(0.1pF) and C (0.25pF). These features are best for matching or coupling circuits used in applications such as power amplifiers for mobile communication, WiMAX and LTE base stations, as well as other related high frequency RF modules, and will help improve the high frequency characteristics of the equipment.

“The new 500 Volt capacitor does more than complement Murata’s existing capacitor products, it opens new markets and applications,” said Nobi Sasaki, component marketing manager, Murata Electronics North America. “Through Murata’s extensive efforts to improve base metal electrode technology, customers can now turn to Murata for a variety of high Q capacitor needs and know they are getting a quality product.”

Sample pricing of Murata’s GQM22 series is approximately $0.35 to $1.11 depending on the part number and the lead-time is stock to 12 weeks. Additional information can be found on-line at

In addition of the new GQM22 series, Murata also now provides a line of polymer aluminum electrolytic capacitors to complement Murata’s existing MLCC products as well as a variety of ceramic capacitors in a wide range of voltages. Specifically, Murata makes monolithic capacitors (capacitors for general-purpose and automotive, medium voltage capacitors, safety standard recognized capacitors, lead type capacitors), disc capacitors (medium voltage capacitors, safety standard recognized capacitors), high frequency single layer microchip capacitors and ceramic trimmer capacitors. Murata also provides technical support that includes design kits and a comprehensive set of software tools to simulate virtually any circuit condition.

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