Hi Everyone, I Have A Project Which Will Need To Control The Speed Of A Small 5v Fan. The Pin I Will Use is Of Course A PWM Pin, I Attached A Picture Of The Fan And Its Details Below:
Fan Voltage is 5v
Fan Dimensions Are 30 x 30 x 10mm casing Frame size
Edit: Its A 5v Promini That I Will Use
Fan details that you provided do not contains an important info about the fan current.
I am almost sure that Arduino Promini PWM will not able to drire this fan directly.
You need to add a mosfet to your schematic.
So you should be good with a small logic level MOSFET
Search for ARDUINO MOSFET DRIVER
Can I use a transistor instead, a 2n2222 maybe, my project has pretty tight space constraints
It Has A Current Draw Of 0.13A
NPN. yes.
The fan has a controller inside, it's a brushless motor. You can effect some 'control', but not Full Range.
So I can't drive it off the Arduino pin directly ?(current draw of 0.13a)
and how would i need to wire it if i need a transistor
Read reply #3 again.
In Post 4 I Said I Cant Because My Project Has Small Space Options
I Want To Either Use A Transistor Or Power It Directly From The Microcontroller Pins
"Mosfet driver" is not only a piece a hardware, it also a schematic, which you can use to make the driver yourself using a transistor.
Can You Please Tell Me A Wiring Diagram That Could Work, And Thanks For Clearing It Up
There are several tutorials on line explaining how to control a PC fan with a PWM input.
Do not directly connect the PWM pin to the fan PWM input, unless the fan is specifically designed for that.
Why Are You Capitalizing All Your Words?
I think it looks better that way 
@b707 and @runaway_pancake what component is Q1, The Transistor? Or A Mosfet? And What Type Of Transistor/Mosfet/Other Component?
We are reading it, not you.
Uh well sorry if it bothers you I will keep it small if it is easier for you that way
edit: isn't off topic stuff not allowed here?
Your question - Post No.4
