Where Can I Find a Replacement Computer Case Fan?
One of the most important parts of your computer is the fan. Without one there to circulate cool air in or draw hot air out, your computer can overheat, damaging the circuitry. When your old fan malfunctions, there are several replacement options from Nidec, which is a manufacturer of electronics and motors.
What Is the Difference Between an AC Fan and a DC Fan?
When looking for a new fan for your computer, it helps to know the basic differences between the kinds that are available. The first main difference is the kind of electrical power the cooling fan uses.
- DC Cooling - These fans use direct current where electricity flows in just one direction. The motors on these fans run on a low voltage like 5V, 12V, or 24V for small fans or 48V on larger fans. These have the advantage of creating less of an electromagnetic interference.
- AC Cooling - These use alternating currents that change direction quickly and have motors that run on a higher voltage than DC cooling fans. A common voltage for AC cooling fans is 115V. These are for when the electromagnetic interference will not cause a malfunction.
What Are the Buzzwords to Watch for When Choosing a DC Cooling Fan for Your Computer?
When picking out a replacement fan for your computer, you should look for the following in specifications:
- V vs. VDC - There is no difference between V and VCD, VCD is just another way to say what the amount of voltage the fan uses. A DC motor with 24V is the same as 24VCD.
- Brushless DC Motor - Make sure that the fan motor is a brushless motor no matter which voltage you are getting. These will produce less noise and do not create sparks. Overall, they are more reliable.
What are some common models of Nidec fans available?
The brand produces three categories of fans and blowers in AC and DC type with the smallest at 20 mm and the largest 170+ mm. See manufacturer site for size details.
- DC Axial Flow - This category of DC fans uses propeller blades that blow air axially using performance bearings and blade structures.
- DC Blower - This category of DC fans blows centrifugally. These create a steadier flow of air than axial fans and require a higher power input to operate.
- AC Axial Flow - This category of AC fan uses propeller blades that blow air axially.