Friday, February 22, 2008

MLCC is first with settable ESR


Stabilizes ESR values and controls circuit impedance in power applications

A multilayer ceramic chip capacitor featuring a novel internal structure is presented as the industry's first to allows ESR values to be set to any value within a specified range—stabilizing ESR values and controlling circuit impedance. In applications such as power supply decoupling and dc/dc converter I/O smoothing, setting ESR values of capacitors located near a CPU can result in smaller impedance changes between the power supply and the processor over a broad range of frequencies as well as voltage variation limiting effects.

With a voltage range of 4 to 6.3 V, the capacitors are currently available in 1608 and 2012 case sizes and offer values of 1 and 10 µF, respectively. ESR range is from 10 to 1,200 mΩ for the 1608 size and 10 to 500 mΩ on the 2012. (1608, 20 yen; 2012, 60 yen—available now.)

TDK, Tokyo, Japan
Y. Osuga 0-11 81-3-5201-7102

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