Author Topic: Capacitor Conversion Table  (Read 4596 times)

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GtrmanMoe

Capacitor Conversion Table
« on: March 27, 2008, 11:05:18 AM »
OK, so I've got this handy little capacitor conversion table that I use when working with caps.  The table allows for quick conversion of cap values from pF to nF to uF, and vice versa.  It's also pretty helpful in helping to decode the little cap value code on each cap, i.e. a cap with the marking 223 is .022 uF.  I was wondering if anyone here would be interested in such a table to keep at their work area for easy reference.  I have the table in Excel and PDF formats.  I guess it would be easiest to somehow post it here so anyone who wanted a copy could have access to it.  Maybe even somehow post it to the Wiki.  It's a great tool and I'd be glad to share.
Bob Iles | CIW Associate
My Solo Project
House Of Moe

Pushtone

Re: Capacitor Conversion Table
« Reply #1 on: March 27, 2008, 11:25:02 AM »

Reference material is alway welcome. I think the wiki would be an excellent place to park it.




FWIW: You can use Google to translate values between pF, mF and nF.

For instance, If you search for "250 picofarads in microfarads"

Google will return this...

"250 picofarads = 0.00025 microfarads"


More about the Google calculator
http://www.google.ca/intl/en/help/features.html#calculator
It's time to buy a gun. That's what I've been thinking.
Maybe I can afford one, if I do a little less drinking. - Fred Eaglesmith

jpm83

Re: Capacitor Conversion Table
« Reply #2 on: March 27, 2008, 11:27:45 AM »
Have you seen this? http://www.justradios.com/uFnFpF.html It doesn't tell the codes for caps but it's where I started. If you have any intress to share your chart, go a head every good info is welcome in here.

Janne

jefe

Re: Capacitor Conversion Table
« Reply #3 on: March 27, 2008, 11:33:33 AM »
Yeah, please share it GtrmanMoe, if you can post it somehow.

iaresee

Re: Capacitor Conversion Table
« Reply #4 on: March 27, 2008, 11:38:16 AM »
This page has the colour codes for poly caps listed (scroll way down). But there's a mistake on the page where it talks about reading three digit cap codes. It says:

Quote
So 100 would be 10pF multiplied by zero i.e. 10pF.

But 10 x 0 != 10, 10 x 0 = 0 !!! The third digit is a power of ten exponent. The code "100" actually reads 10 x 10^0 = 10 x 1 = 10. But the tables are correct.

I'm guilty of mis-reading units (ahem) but in my defense that was very late at night. :) Still, is the uF <-> nF <-> pF conversion awkward at first for Americans (or anyone else who didn't grow up with the metric system)? Once you remember the order the go in ( uF > nF > pF) it's just multiplying and dividing by 1000 to convert. Example: 47 uF is 47 x 1000 = 47,000 nF is 47 x 1000 x 1000 = 47, 000, 000 pF.

squidsquad

Re: Capacitor Conversion Table
« Reply #5 on: March 27, 2008, 11:52:23 AM »


davent

Re: Capacitor Conversion Table
« Reply #7 on: March 27, 2008, 12:00:15 PM »
Here's a downloadable pdf. cap conversion table.

http://amplates.blogspot.com/2007/07/new-download-cap-codes-revealed.html

dave
"If you always do what you always did- you always get what you always got." - Unknown

johngreene

Re: Capacitor Conversion Table
« Reply #8 on: March 27, 2008, 12:52:10 PM »

Reference material is alway welcome. I think the wiki would be an excellent place to park it.




FWIW: You can use Google to translate values between pF, mF and nF.

For instance, If you search for "250 picofarads in microfarads"

Google will return this...

"250 picofarads = 0.00025 microfarads"


More about the Google calculator
http://www.google.ca/intl/en/help/features.html#calculator

The Google calculator is good for all kinds of other things too:
Like "What is the answer to life, the universe, and everything?"
And "number of horns on a unicorn"
Also once in a blue moon
And if you have ever wondered how fast "Furlongs per Fortnight" is.

--john
« Last Edit: March 27, 2008, 12:57:52 PM by johngreene »
I started out with nothing... I still have most of it.

kurtlives

Re: Capacitor Conversion Table
« Reply #9 on: March 27, 2008, 01:07:30 PM »
Have you seen this? http://www.justradios.com/uFnFpF.html It doesn't tell the codes for caps but it's where I started. If you have any intress to share your chart, go a head every good info is welcome in here.

Janne
Thats what I use.

On a side note I just got in a order from them today.

BubbaKahuna

Re: Capacitor Conversion Table
« Reply #10 on: March 28, 2008, 08:27:04 AM »
Universal capacitance convertor:
http://www.unitconversion.org/unit_converter/electrostatic-capacitance.html

Capacitor Network Calculator:
http://lectureonline.cl.msu.edu/~mmp/kap19/RR480app.htm

Color codes of Resistors, Capacitors and Inductors:
http://www.silentmods.com/modding/color_code.html

4, 5 & 6 band Resistor Color Codes (& more):
http://www.samengstrom.com/nxl/3660/4_band_resistor_color_code_page.en.html

Help identifying Vintage Components (in French, but it's pretty basic):
http://egraffin.free.fr/index.php?section=tools&subtools=transgerm

Transistor ID & Testing:
http://www.tpub.com/neets/book7/25h.htm

~~~~~~~~~~~~~~~~!!!~~~~~~~~~~~~~~~~~

That should set you up pretty well!

Cheers,
 - JJ

My Momma always said, "Stultus est sicut stultus facit".
She was funny like that.

chrisguitars

Please help with identifing a capacitor
« Reply #11 on: March 28, 2008, 11:16:10 AM »
I am building a replica of an old circuit that had a tropical fish with brown,black,yellow,white and red bands. What value is this as I plan on using orange drops. Thanks