Temperature controlled dc fan
About the Temperature controlled dc fan PCB
Temperature controlled dc fan is an open source PCB design by JKCadilo14-CpE, published on GitHub under the MIT license. It is a 2-layer board measuring 71.1 × 30.5 mm, with 5 components from 5 distinct parts.
By type, the board carries 2 connectors, 1 transistor and 1 resistor.
It belongs with the sensors designs in this gallery.
From the project
Collection of electronic circuits I designed, tested, and documented using KiCad
A beginner-friendly temperature-responsive fan control project using a 10K NTC thermistor and a BC547 transistor.
This project demonstrates a simple temperature-controlled DC fan concept. A 10K NTC thermistor changes resistance as temperature changes, and that resistance change affects the bias condition of a BC547 transistor connected to the fan output.
The circuit was built as an educational PCB project for studying temperature sensing, transistor biasing, and basic load-control behavior. It is intended for learning and experimentation, not for certified thermal protection or production…
Temperature controlled dc fan bill of materials (BOM)
5 components, 5 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | BC547 | TO-92_Inline | Q1 |
| 1 | input | TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J1 |
| 1 | fan | TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J2 |
| 1 | 10K ohms NTC | R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | TH1 |
| 1 | 510 ohms | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
Temperature controlled dc fan design files
The KiCad project lives in the JKCadilo14-CpE/DIY-Circuits repository on GitHub; these links point at the commit this page was built from.
Temperature controlled dc fan: common questions
How big is the Temperature controlled dc fan PCB?
The Temperature controlled dc fan measures 71.1 × 30.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Temperature controlled dc fan?
5 components, from 5 distinct parts. The full bill of materials is listed on this page.
Where can I download the Temperature controlled dc fan design files?
From the JKCadilo14-CpE/DIY-Circuits repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Temperature controlled dc fan design in my own project?
Yes, under the terms of its MIT license, which JKCadilo14-CpE chose for the repository.
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