High Frequency, High Q Capacitors For Hi Rel Applications

With applications in the satellite/cable tv, Bluetooth, automotive GPS, cell phone and base station markets, the GQM series multilayer chip capacitors are available in a frequency range from 500MHz to 10GHz. Built with a C0G dielectric and contained in miniature 0603 and 0805 packages, the devices have a voltage rating of 50 or 100V. These high frequency, high Q components feature low power consumption and ultra low esr, particularly at microwave, UHF and VHF frequencies. Capacitance ranges vary from 0.1 to 100pF.

The ERB series devices are available in 0603, 0805 or 1210 packages, with voltage ratings from 50V to 500V. Also built using the C0G dielectric, these high frequency (1MHz to 1GHz), High Q capacitors are offered in capacitances ranging from 0.5 to 1000pF. The low power consumption ERB series is best suited to telecomms applications, but for very high frequency use, the GQM series delivers superior performance.

Described as high power RF capacitors, the MA series is available in both leaded and chip package configurations with a choice of C0G or P90 dielectrics. Featuring very high self resonant frequencies, the devices provide low capacitance (from 0.1pF) and tight tolerances. The MA series are particularly suited to non-magnetic applications such as RF coils and amplifiers incorporated into sensitive equipment such as those designed for medical and military systems. These parts are also designed to operate in harsh environments.

Murata’s Hi-Q MLC range is priced competitively, providing excellent value for performance. All parts are RoHS compliant and already in volume production on 8 to 12 week leadtimes. Samples and designer kits for design-in and evaluation purposes are readily available. The parts are manufactured in Japan and take advantage of Murata’s advanced materials research, using copper (GQM series) or palladium electrodes, and sophisticated construction techniques.