The only application I can think of off the top of my head would be a high frequency DC to DC converter with a polarity change. Is that the application? ----- Original Message ----- From: "alan smith" To: "Microcontroller discussion list - Public." Sent: Monday, January 29, 2007 10:15 AM Subject: Re: [EE:] is it possible to get 0.01uF with polarity? > maybe describe the circuit or if you have a schematic.....might be easier to determine if it really needs a polorized cap? > > So, if what Mike says is true...and I pretty much agree since caps are just plates with dielectric seperation...why do tantalums blow if inserted backwards (ive seen the results) > > Mike Harrison wrote: > > AFAIK there are no electrical advantages in using a polarised cap over a non-polarized one - at > larger sizes they are used for their size and cost advantages, although ceramics have been pushing > up the typical cross-over point in recent years, especially in performance-sensitive areas like > DC/DC converters where ceramics of 10uf and higher are commonplace. > > > > > --------------------------------- > Sucker-punch spam with award-winning protection. > Try the free Yahoo! Mail Beta. > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist