Hi everyone,
How do you read the numbers on top of our old friend the box capacitor? I've got five of them going onto a Wolfshirt board this afternoon, and want to make sure I've got it right. So I've got a specific task here, but since I'll surely use this knowledge many times after, I thought this would be the right place for the thread.
So for example, here are the numbers on the caps and what I think they mean after looking at the BOM:
104J100: 100n?
102J100: 1n?
473J100: 47n? (subbing for the 50n cap)
332J100: 3n?
Thanks in advance for the help as always!
Bret
You have it right on the values.
It breaks down like this:
Value | Tolerance | Voltage Rating
104J100
104 = 100n (10 + 4 zeroes, in picofarads)
J = 5% tolerance
100 = 100v rating
For more reading:
http://www.electronics2000.co.uk/data/itemsaf/capmarks.php
I appreciate it! This site looks to be a great resource.
Hi Bret this table can be useful too together with the explanion of culturejam.
Quote from: culturejam on September 21, 2012, 06:58:38 AM
You have it right on the values.
It breaks down like this:
Value | Tolerance | Voltage Rating
104J100
104 = 100n (10 + 4 zeroes, in picofarads)
J = 5% tolerance
100 = 100v rating
For more reading:
http://www.electronics2000.co.uk/data/itemsaf/capmarks.php
Good stuff CJ, thanx! I knew a lot of this in bits and pieces, but seeing it like this in one concise post is always a pleasure!
Paul
Here's another handy chart for converting between the various multipliers of values:
http://www.justradios.com/uFnFpF.html