[sdiy] smt 3300ppm resistors

[Dave Manley]

Bruce Duncan wrote:

> The easiest and most reliable method I have found for VCOs is to use a 
> dual SMT transistor
> DMMT3904W and a 1.8K 0805 3300ppm resisitor in the feedback loop of the 
> coarse tune summing opamp.
> ( I would use 2K if they were available but Digikey only stocks 1.8K)
> The Dual 3904s seem to be quite well matched and the low mass of both 
> the transistors and 0805 T. resistor

I took a look at the data sheet, and it turns out this is a Panasonic 
not Digikey issue, for 3300ppm parts the highest resistance available is 
1.8K.

http://www.panasonic.com/industrial/components/pdf/AOF0000CE1.pdf

When this discussion started I saw KOA has a family of similar parts 
that includes a 2K 3300ppm 0805. I haven't looked for availability.

http://www.koaproducts.com/english/catalogue/lp73.htm

-Dave