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Ceramic capacitors achieve 56nF capacitance

Posted: 11 Aug 2009 ?? ?Print Version ?Bookmark and Share

Keywords:capacitor? power supply? EMI?

GB capacitors

Murata Manufacturing Co. Ltd has improved the capacitance and reduced the cost of its GB series of monolithic ceramic capacitors for power supply primary circuits. These parts are the first monolithic capacitors aimed at power supply primary circuit applications to achieve 56nF capacitance. The cost was also reduced by 15 percent over previous models by replacing the precious metals like silver that were used for the electrodes with a base metal such as nickel.

The GB series of X2-class safety capacitors has acquired certification to international capacitor safety standard IEC60384-14 and can resist electrical surges of up to 2500V. The series offers a volume reduction of up to 90 percent when replacing the typical choice of film capacitors for EMI reduction in power supply primary circuits, and use just 1/3 of the footprint. The significant volume reduction makes the product suitable for small- and low-profile equipment such as adaptors for laptop and notebook computers.

The GB series comes in 10-, 15-, 22-, 33-, 47- and 56nF versions measuring 5.7mm x 5mm, with a low profile between 1mm and 2.9mm, depending on capacitance.

- Henri Arnold
EE Times Europe

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