01jlG5HYLq

Simple cooling fan control board

Overview

This is a simple cooling fan control board that supports DC 12V/5V input and 5-9cm cooling fans (8cm fans are recommended; 9cm fans may cause size interference during assembly). It can be used as a cooling fan or a small fan for soldering fume extraction.

Regarding fan size: a moderate size is recommended; smaller fans may not produce much airflow.
Regarding the casing: it's optional; a bare fan with a color silkscreen print looks good.
Regarding assembly: 1. The fan can be secured to the PCB using M3-M4 screws and nuts (I used the screws that came with my previously purchased Deer Fairy heating plate).
2. The casing is secured with M4 screws.
3. The filter for the soldering fume extraction fan can be placed between the casing and the PCB, in the following order: front casing - filter - PCB - fan - PCB - rear casing. Alternatively, if you don't want a separate casing, you can add a PCB at the front during fan assembly, in the order of PCB - filter - PCB - fan - PCB.

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2026-03-27 22:08:13

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