[sdiy] what does low-k mean?? and how do i tell a high-k ceramic cap?

[Ray Wilson]

A good bit on the meaning of  "K" (dielectric constant)

http://www.siliconfareast.com/dielectric-constant.htm

Cheers

Ray

----- Original Message ----- 
From: "anthony" <aankrom at bluemarble.net>
To: "Brett Maddaford" <Brett.Maddaford at ipfx.com>; 
<synth-diy at dropmix.xs4all.nl>
Sent: Tuesday, August 29, 2006 12:44 AM
Subject: Re: [sdiy] what does low-k mean?? and how do i tell a high-k 
ceramic cap?


> The actual word is on the tip of my brain, but I think lo-K caps are 
> pretty large in size relative to their ratings and hi-K caps have a huge 
> amount of capacitance in a small space. Hi-K's are great for decoupling 
> power supplies and that's about it.
>
> ----- Original Message ----- 
> From: "Brett Maddaford" <Brett.Maddaford at ipfx.com>
> To: <synth-diy at dropmix.xs4all.nl>
> Sent: Monday, August 28, 2006 11:56 PM
> Subject: [sdiy] what does low-k mean?? and how do i tell a high-k ceramic 
> cap?
>
>
>> Hi All
>>
>> I've asked this question of a few people in the know and none of them
>> really know what is meant by low-k ceramic caps??? a few items i ahve
>> built specify low-k ceramic caps in the build guide and to avoid the
>> cheaper high-k caps. I ahve even asked this when ordering parts and
>> suppliers have ni idea what im on about....anyone able to explain what
>> it means and how i tell low-k from high-k?
>>
>> Thanks
>> Brett
>>
>>
>
>