Message:
Subject: Looking for 5 volt fans
By: Harro Treur (IP: 193.172.125.*)
Written on: 09-03-2005 16:41

Hello,
I am looking for fans to cool down optical elements.
I want to use low voltage : something like 4 to 6 volts.
This turns out to be a problem, because it seems like all fans use 12V DC.
But i also heard of fancy looking cooling pads for notebooks, which are USB-connected and use 3V. (by using 2 80mm fans or 4 60mm fans).

Can anybody tell me where I can purchase these kind of fans (without the designlike package which is useless for me) .

Thank you very much
Harro







Replies:
By: Tillmann (IP: 83.121.34.*)
Written on: 10-03-2005 11:58

Hi,

5V fans are commonly available, especially in smaller sizes (e.g. 40mm). Don't look at shops specialized in _PC_ cooling; in that area, mostly 12V fans can be found. You should be able to get 5V fans at generic electronics retailers, such as Radio Shack.

Or try a specialized online shop, like here:
http://shop.store.yahoo.com/a-p/40mm5vdcfan.html

I have reviewed A&P products in the past, and they turned out to be of good quality.

bye,
Tillmann
By: BIFF (IP: 81.151.133.*)
Written on: 30-03-2005 01:46

HI JUST CHECK OUT THE CONNECTORS LINK ON THE LEFT IT TELLS YOU HOW TO RUN A 12V FAN AT 7 V ANY GOOD ?

BIFF CHEERS
By: Tillmann (IP: 83.121.32.*)
Written on: 31-03-2005 14:52

Hi,

no, that's not related - according to my experience, 12V fans will run fine at 7V, but [B]not[/B] at 5V. Even those 12V fans who will start spinning at 5V will provide very bad performance and possibly bad reliability.

bye,
Tillmann
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