2x IRF3205P - MOSFET N Channel transistor - 100A 55V 200W
2 x IRF3205Pbf
- Transistors MOSFET N-Channel
- Id = 110A
- 55V
- Rds(on) = 8 mOhms
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IRF3205P, a 100A N-Channel MOSFET transistor to control high power device
Big brother of the NPN transistor, here is the N channel MOSFET, a power transistor. While the famous STP16NF06 (16A) is available this MOSFET is not always powerful enough... the MOSFET get quite hot when the current get close of 16A.
This IRF3205P transistor have a RDS(on) (Drain-Source resistance) as low as 8 mOhms, It will be able to drive really high current while limiting the heat dissipation. This component can handle a power dissipation of 200W (as long as it work in the proper operation area).
The IRF3205P can handle a Id current up to 100 Amps (do not forget to cold it down). The IRF520 can manage 9.7A and the IRF540 is limited to 55A.
The other behavior of interest is the Gate Threasold Voltage Vgs(th) between 2.0V and 4.0V, low enough for direct control with a microcontroler. However, it is strongly advise to use a Gate Driver with such powerful MosFet.. the required energy to activates the gate (in Joules) may be out of the microcontroler pin specification, this will result in a slower gate charging (so higher time of commutation and higher power lost!)
The effective Vgs voltage depends on the actual transistor in your hands (it may vary from one batch to the other). If Vgs is close to 2V then a microcontroler pin could be used... just remember that it will cause increased heat lost.
Using a Channel-N transistor is very common... it also exists P channel MosFet (the equivalent of PNP transistor).
The IRF3205P transistor can be used to control a very powerful device... just take care of burn injuries. The MOSFET transistor is very popular in the maker world because it can handle high current (suited for driving motors).
Content
- 2 x N-Channel MOSFET - IRF3025P
Technical details
- IRF3205P datasheet.
- Drain Source Voltage Vdss: 55V
- On Resistance Rds(on): 8 mOhms
- Id = 100A
- Max working temp: 175°C
- Dissipation Power Pd: 200W
- Rds(on) Test Voltage Vgs: 10V
- Threshold Voltage Vgs: 2~4V
Tutoriel
- We have a french tutorial on "Motor Mini Kit for Hobby" which use the STP16NF06 (also a N-Channel MOSFET). You can use other MosFet with this tutorial.
Good to know it!
- Cool down your transistors, they don't like the heat!
- The maximum current is 100Amp, it is a very high current. So cold down the transistor ;-)
- Using a High Frequeny signal to drive the transistor always cause a higher power dissipation.
- Using a Gate Driver will reduce the commutation time (so the heat dissipation).
