Topic: Common capacitor values

[qguy]

Why is it that the following capacitor values seems to be common in use

470, 4.7,47  2200, 220, 2.2, 10,1,100,1000.. 

but the other values are not so common

like I dont see any 46,.46,460,45,.45,450, 21, 21,210, .. etc...

or sa amp ko lang ito ?

[rthirtyfourgtr]

Why is it that the following capacitor values seems to be common in use

470, 4.7,47  2200, 220, 2.2, 10,1,100,1000.. 

but the other values are not so common

like I dont see any 46,.46,460,45,.45,450, 21, 21,210, .. etc...

or sa amp ko lang ito ?

Standard Capacitor Values
http://www.rfcafe.com/references/electrical/capacitor-values.htm

[rascal101]

Why is it that the following capacitor values seems to be common in use

470, 4.7,47  2200, 220, 2.2, 10,1,100,1000.. 

but the other values are not so common

like I dont see any 46,.46,460,45,.45,450, 21, 21,210, .. etc...

or sa amp ko lang ito ?

Hindi pa ata uso ang standard capacitor values noong araw.

[rthirtyfourgtr]

210, 453, & 464 are in the E96 series. perhaps they are the ones spec'ed with high-precision/low-tolerance?

lets wait for the ECEs to chime in...

[ATJr.]

Why is it that the following capacitor values seems to be common in use

470, 4.7,47  2200, 220, 2.2, 10,1,100,1000..  

but the other values are not so common

like I dont see any 46,.46,460,45,.45,450, 21, 21,210, .. etc...

or sa amp ko lang ito ?

naku po...this is history, long before  our parents were born.....electronics manufactures agreed on a set of standards so that many manufacturers can supply parts that conform to a common set of values........

http://en.wikipedia.org/wiki/Electronic_Industries_Alliance#EIA_standards
http://en.wikipedia.org/wiki/Electronic_color_code
http://ecee.colorado.edu/~mcclurel/resistorsandcaps.pdf
http://www.kennethkuhn.com/students/rlc_values.pdf
http://webcache.googleusercontent.com/search?q=cache:http://ieee.ucsd.edu/wiki/_media/tutorials/standard_resistor_and_capaciter_values.pdf

any electronic part can be made to any spec one wishes....