These have to be the coolest, yet most useless fans...

godzilla525godzilla525 Western Pennsylvania Member
edited March 2004 in Hardware
Sunon has a line starting at 8 x 8 x 5 mm... that's 0.315 x 0.315 x 0.197 inches, at a whopping 0.01 CFM while turning at 11000 RPM. :crazy:

My question is why? :skeptic:

I can think of all sorts of things that there would actually be a market for that nobody will bother producing, yet Sunon's perfectly happy to mass-produce something that's 100% useless.

http://www.sunon.com.tw/products/pdf/dc-fan/1maglev_minifan.pdf

Comments

  • Geeky1Geeky1 University of the Pacific (Stockton, CA, USA)
    edited March 2004
    There are all sorts of things that this can be used for. Cooling extremely small ICs where space is a premium, for example.
  • godzilla525godzilla525 Western Pennsylvania Member
    edited March 2004
    Think for a minute though. It would take 100 of those tiny things to make 1 CFM, and most of the 40mm fans already move about 5 CFM or so.

    Natural draft convection cooling would move more air. That little thing couldn't do any better than circuit board traces, and with the small amount that it could move...anything that could get hot enough on that scale to destroy itself woudn't benefit from 0.01 CFM at all.

    A passive heatsink would do fine in this situation, whereas a fan just adds potential failure of moving parts and noise...

    ...yet I have a strange desire to stock up on these things... :wtf:
  • Geeky1Geeky1 University of the Pacific (Stockton, CA, USA)
    edited March 2004
    Not true. ANY airflow across a heatsink is better than depending on convection.
  • a2jfreaka2jfreak Houston, TX Member
    edited March 2004
    Oh yeah? Fine, sure, go ahead and assume that "any airflow" will be air that hasn't been heated to 550F. Go ahead, make that assumption. ;D
    Geeky1 wrote:
    Not true. ANY airflow across a heatsink is better than depending on convection.
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