Hello,
Can I use a P1806 Mosfet instead of a IRF520? Because I got like 20 of the P1806 and only one IRF520
Application: Controlling RGB Strip and PC fans
Thanks for the help!
Hello,
Can I use a P1806 Mosfet instead of a IRF520? Because I got like 20 of the P1806 and only one IRF520
Application: Controlling RGB Strip and PC fans
Thanks for the help!
Can I use a P1806 Mosfet instead of a IRF520?
Well yes but only because neither of them are suitable for being driven by an Arduino.
You need a logic level FET for that sort of thing.
Neither of them are Logic Lever MOSFETs so they're not ideal for use with Arduinos. But if you've already tested the IRF520 and it works for you then there's a good chance the STP1806 will too.
Steve
Grumpy_Mike:
Well yes but only because neither of them are suitable for being driven by an Arduino.You need a logic level FET for that sort of thing.
slipstick:
Neither of them are Logic Lever MOSFETs so they're not ideal for use with Arduinos. But if you've already tested the IRF520 and it works for you then there's a good chance the STP1806 will too.Steve
Can't really understand this because the IRF520 is in the Arduino starter kit
*hit happens.
Try IRL520
larryd:
*hit happens.
Try IRL520
? ? ?
If you don't want advice then just try them and see how well they work. The STP1806 shouldn't be any worse than an IRF520.
Steve
They are packaging the wrong MOS FET for direct Arduino driving.
Maybe they ran out of IRL520s (L = logic).
It’ll work just not as efficient as we like mosfets to be. I’ve seen kits with IRF540 also.
“It'll work just not as efficient as we like mosfets to be.”
Yes, for very low current drive only.
larryd:
They are packaging the wrong MOS FET for direct Arduino driving.Maybe they ran out of IRL520s (L = logic).
Official Arduino Store = IRF520
German Seller = IRF520
Other German Seller = IRF520
https://www.reichelt.de/grundlagen-arduino-verwendung-225-teilig-de-arduino-starter2-p176634.html?PROVID=2788&gclid=Cj0KCQiAvebhBRD5ARIsAIQUmnkvu1FXzXTDiMxs27kewwywtkNi9zMW9YI56_4b7DdUubjF7T72NJgaAtMbEALw_wcB&&r=1
5 x Transistor BC547
2 x Mosfet Transistor IRF520 <———<<<<
5 x 100 nF-Kondensator
Now you have learned ‘not to trust’ what others say is okay, *hit happens to you now and then.
If you are powering the Arduino from the power jack, you can use the bc547 with the IRL520 to get things to work properly.
See Q5 and Q4 circuit here:
Page 96 of the Arduino project book and the kit by Arduino has the IRF520. Its a small DC motor pinwheel project. Who know who came up with this BOM. looks like they all copied their original parts.
This is why everyone asks about the IRF520
Here the kit that goes with the book.
Official Arduino Store = IRF520
Arduino Starter Kit Multi-language — Arduino Official Store
Sad to see this, but what is the context?
Maybe they use it with a driving transistor or maybe they use it with very very small current.
Or maybe the engineer said IRL520s but the sales man told the buyer that the IRF520 was "just the same" and the buyer believed him.
But that project uses a 9V battery to power a motor, that is very bad advice as well.
It is probble that they just want to demonstrate something but it is bad education if you can't take those principles and apply them to other situations. Hence the errors in the "official" tutorials on this site, that we try and try to get corrected but we are ignored.
Who knows why this happens? But here we give quality advice, and the slightest slip from one of us and we get quickly corrected. Note all the advice is saying the same thing.
so true
Description of the potential problem:
Each MosFet type has its own characteristics. The one that is important here is Vgs.
from the P1806 data sheet (2nd page, part of the "ON**" table)
Symbol VGS(th)
Parameter Test Conditions: VDS = VGS and the drain current ID = 250 µA
Min 2
Typ 3
Max 4
Given that an Arduino output is about 4.5 V, it is quite possible that this MosFet could barely turn on (i.e. it might only allow 250 µA to flow. Not enough to power your LED's.
However much of the time the devices are at the more sensitive end of the specification and will power moderate loads satisfactory.
However it will never even get close to the 0.018 Ohms stated with such a low gate voltage.