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Multilayer capacitors offer low ESR

Posted: 14 May 2009 ?? ?Print Version ?Bookmark and Share

Keywords:chip capacitors? ceramic capacitor? power supply?

Multilayer ceramic chip capacitors

Holystone International has announced the SMC series of multilayer ceramic chip capacitors and the HSC series with higher temperature ratings of 150C, 200C, and 250C. Well suited for switch-mode power supply filters, the stacked design of the SMC and HSC series offers very high capacitance and low ESR, exceeding the capabilities of wet tantalum designs.

Both series are offered in multiple footprints, in EIA size codes 1812, 2220, 1825 and 2225, all with lead frame stand-offs to prevent mechanical and thermal stress. They have J, L, and N leaded configurations for through hole or surface mount use. Capacitance ranges are from 470nF to 35?F in the 125C rating, with rated voltages ranging from 25V to 1,000V. 150C and higher temperatures will have slightly lower nominal capacitance ratings. All are available with HIREL screening. The entire series is RoHS-compliant.

The SMC and HSC series of multilayer ceramic stacked chip capacitors are available in six weeks for sample quantities, with production quantities in six to eight weeks ARO. Pricing for a 2225 size capacitor with 2 stacked chips with10?f at 50V are being quoted at $1.75 each in a quantity of >1,000 pieces.

- Henri Arnold
EE Times Europe





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