[sdiy] Tempco 2k +3350ppm Group buy

[Ian Fritz]

At 09:05 AM 5/22/06, HA.Synth at t-online.de wrote:
>HI,
>
>I have an new offer!
>
>
>2k +3350ppm Tempco for 4,40 EUR (30pc) delivery time 12 weeks
>1k +3500ppm Tempco for 3,18 EUR (30pc) delivery time 2 weeks
>1k +3500ppm Tempco for  2,27 EUR (100pc) delivery time 2 weeks
>Anyone to jump in?
>
>And here is my problem. Should i go for +3350 ppm? Due to the tolerance of 
>the
>tempcos can i overcompensate? As Ryan says its easier to decrease the TCR
>then to increase. Is +3500ppm good enough or should i take the risk with
>+3350 ppm ?

What is the % tolerance on the temp coeff?  (3350 +/- what%).  Be careful 
how the tempco is defined, also.  Some companies quote the slope between 
25C and 100C, rather than the tangent slope.

   Ian