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 'AA5' was also a marking for surface mount caps
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 Return to top of page · Post #: 1 · Written at 11:22:01 AM on 22 March 2019.
Wa2ise's avatar
 Wa2ise
 Location: Oradell, US
 Member since 2 April 2010
 Member #: 643
 Postcount: 830



The first A was a code for a cap manufacturer, the 2nd A was code for 1.0 and the 5 was the power of 10 to multiply the 2nd A. This cap "AA5" is 1.0 x 10^5 pF, or 0,1μF. For some reason surface mount device makers quit labeling capacitors, though they still mark the resistors.

Of course decades before, "AA5" was "All American 5ive" vacuum tube AM radio.


 
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