IRF3205 DATA PDF

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 idea is that if the soil gets to dry the arduino sets the gate voltage, which turns the transistor on and the valve opens.

However I build the exact same project some months ago and used the exact same parts – the same resistances, the same transistor type and the same valve and it worked perfectly with a 5V gate voltage. The 5 volts seem to be to low to let enough current flow for the valve, which drains around 2.

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I learned from another thread here that this makes sense, because a higher gate voltage will let more current ird3205 through the transistor.

When I connected the gate pin of the transistor directly to the 12V power source the circuit worked as intended and the valve opened. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

Post as a guest Itf3205. You cannot drive the IRF in the manner shown. Sign up using Email and Password. The arduino outputs 5V which is just over the threshold voltage of V Datasheet: Looking at the details in the datasheet you need to understand that 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.

IRF – Infineon Technologies

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Email Required, but never shown. Running your Arduino at 5 V this should work ok out to a couple of Amps.

Try your circuit in this form: If the circuit is connect as in the picture only 0. I use a IRF transistor, which might be a bit of an overkill, but it was the smallest I had.

The LED is to easily see if ief3205 valve is open or closed. Thanks a lot, now the circuit works exactly as I wanted! I built this circuit as part of an automatic irrigation system and I am not sure how high the gate voltage should be: I suspected the transistor to be broken, but I switched it out several times and the results were the same.