Some capacitor manufacturer websites have information on impedance characteristics over operating frequency. For example, Murata has a very useful tool called MLCC Characteristic Data which allows you to pick a cap and it will generate a bode plot. Inductance and other parameters are also shown. Check out: http://www.iijnet.or.jp/murata/products/english/design/cap/index.html Regards, Brian E. Tauscher Hardware Engineer COGNEX? Corporation 1 Vision Drive Natick, MA 01760 email: brian.tauscher@xxxxxxxxxx Date: Sat, 02 Mar 2002 17:29:25 -0800 From: Neeraj Pendse <cnepsc@xxxxxxxxxxxxxxx> Subject: [SI-LIST] Re: Inductance of Various Capacitor Paxkages Adeel, Take a look at www.gigatest.com, there are several application notes on the website, available for free download after registration (FREE). This might also answer your previous question about power system design. - Neeraj. -- National Semiconductor Corporation 2900 Semiconductor Drive, M/S 19-100 Santa Clara, California 95051 http://www.national.com/, NYSE: NSM > Adeel Malik wrote: > > Can some-one tell me or guide me to a link having inductance values for > various Capacitor packages, both though-hole and SMD. I need them to > optimize decoupling topology for a high-speed board running above 100MHz. > Regards, > Adeel Malik, > Senior Design Engineer, > Communications Enabling Technologies, > 5-A Constitution Avenue, Islamabad. > ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu