This video shows how to build a temperature-activated fan circuit using an NTC thermistor (5D-5) and a TIP41C transistor. 🔥❄️When the temperature rises, the thermistor’s resistance drops, activating the transistor and turning on the 12V cooling fan automatically.
This is a simple and effective way to cool electronics, power supplies, or DIY enclosures without needing microcontrollers or complicated logic.
🔧 Parts Used:
NTC Thermistor 5D-5
TIP41C Transistor
12V Fan
Power Supply (12V)
Perfect for electronics beginners, cooling enthusiasts, and DIY makers!
#temperaturecontrol #autofan #ntcsensor #fancontrolcircuit #diycooling #electronicsproject #heatactivatedfan #diyelectronics #thermalcontrol #smartfan
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