[sdiy] No marking on resistors

[Roman]

As someone have predicted it not so long ago on this list, it's already happening.  Vishay will not be putting any marking on their general purpose standard resistors, even the largest ones.   "The marking of Vishay’s standard R-chips in the 0603 to 2512 case sizes — i.e. CRCW0603 – CRCW2512 with TCR of ± 200 ppm/K / 5 %, TCR of ± 100 ppm/K / 1 %, and TCR of ± 200 ppm/K / 1 %, 0.0 Ω — will be discontinued to improve the efficiency of the production process. Reel labels will enable product identification as before, and part numbers will not be changed. There will be no impact to the products’ performance or technical and environmental specifications (except the marking)."   Later they explain that various marking styles common today are only causing problems by fooling AOI and that no marking is actually better obviously.   So anything better than 1% and 100ppm will be still marked hopefully, at least for couple of years.  The other makers will follow soon I guess.  It would be good April Fools message if it was not a letter from March 28th.   Roman
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