IRF Datasheet, IRF MOSFET N-Channel Transistor Datasheet, buy IRF Transistor. ⑥ Uses IRF data and test conditions. Electrical Characteristics @ TJ = 25°C (unless otherwise specified). Parameter. Min. Typ. Max. Units. The following post explains the main features of mosfet IRF which It’s technical specifications may be understood with the following data.
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My basic irf325 is that if the soil gets to dry the arduino sets the gate voltage, which turns the transistor on and the valve opens.
IRF Datasheet(PDF) – International Rectifier
When I connected the gate pin of the transistor directly to the 12V power source the circuit worked irr3205 intended and the valve opened. I built this circuit as part of an automatic irrigation system and I am not sure how high the gate voltage should be: However I build the exact same project some months ago and used the exact same parts – the same resistances, the irf32005 transistor type and the same valve and it worked perfectly with a 5V gate voltage.
I datz from another thread here that this makes sense, because a higher gate voltage will let more current flow through the transistor. If the circuit is connect as in the picture only 0. The LED is to easily see if the valve is open or closed.
I suspected the transistor to be broken, but I switched it out several times and the results were the same. Post as a guest Name. The 5 volts seem to be ddata low to let enough current flow for the valve, which drains around 2. Looking at the details in the datasheet you need to understand irf3025 the V GS is applied between the Gate and source of the N-Channel FET, you can look at Figure 1 to see the switching characteristics.
Home Questions Tags Users Unanswered. Thanks a lot, now the circuit works exactly as I wanted!
Running your Arduino at 5 V this should work ok out to a couple of Amps.
IRF MOSFET Datasheet pdf – Equivalent. Cross Reference Search
The arduino outputs 5V which is just over the threshold voltage of V Datasheet: You cannot drive the IRF in the manner shown. Sign up using Facebook. Email Required, but never shown.