I am EE hobbyist and I often used recycled parts in my projects. I came across this connector to a Heat Sink Fan and would like to know the name of it.
Thanks for the help.
Electrical Engineering Stack Exchange is a question and answer site for electronics and electrical engineering professionals, students, and enthusiasts. It only takes a minute to sign up.Sign up to join this community
I think that it could be Molex 47054-1000.
Found it in section 4.1.5 on page 17 of this doc: http://www.formfactors.org/developer%5Cspecs%5Crev1_2_public.pdf
Here is a Molex product page: http://www.molex.com/molex/products/datasheet.jsp?part=active/0470541000_CRIMP_HOUSINGS.xml
The three-pin version (non-PWM) is referred to by some computer technicians as a "TX3 connector," but this is something of a misnomer (similar to the moniker "Molex connector," referring to the once-common 4-pin ATX power connectors originally produced by AMP).
The standard 3- and 4-pin fan connectors are Molex KK series connectors. According to Wikipedia the part numbers for the 4-pin version are:
Of course, many manufacturers produce compatible connectors, and most 0.1 inch pitch headers will work with these connectors provided they are long enough (approx 0.3 inch).
On sites like Aliexpress, the magic keyword appears to be KF2510 (and sometimes KF2540 for the opposite gender).
They have both "4 pin" and "3+1 pin" versions. The "3+1 pin" variant is the one seen commonly in the PC world, which will allow both 3-pin and 4-pin plugs to mate. The "4 pin" socket will only let other "4 pin" plugs mate, and will not accept 3-pin plugs.
I don't know very much about electronics, but I recognize this as the 4-pin connector of a fan that uses PWM to regulate the speed. It's a newer technique where previously varying the voltage was used. It will work just fine if black is connected to ground and yellow to +12V. Green is used to measure the RPM and blue regulate the speed.