Murata has added a series of 500V-rated low loss monolithic ceramic capacitors for high frequency applications to its GQM series.

The GQM22 series is the supplier's first 500V-rated MLCC with base metal electrodes.

Although the use of base metal electrodes has been known to be effective in reducing loss and improving Q-factor, their use had until now been accompanied by problems involving characteristic adjustments and firing conditions, among other issues.

With the addition of the GQM22 series, Murata has used its materials technology and co-fired ceramic technology to make the use of base metal electrodes possible.

The new devices feature a 40% improvement in Q at 1MHz over the supplier's general-purpose medium and high voltage capacitors.

With dimensions of 2.8 x 2.8 x 1.15mm and capacitance ranging from 0.5pF to 100pF, the GQM series may be used for tight tolerance products (around capacitance tolerance±0.1pF).

DC withstand voltage is 1250V.

For more information, see http://www.murata.eu