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Topic: P1806 Mosfets (Read 340 times) previous topic - next topic

Sandro2504

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!






Grumpy_Mike

Quote
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.

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

Sandro2504

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
Can't really understand this because the IRF520 is in the Arduino starter kit

larryd

*hit happens.
Try IRL520



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Sandro2504


slipstick

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

larryd

They are packaging the wrong MOS FET for direct Arduino driving.

Maybe they ran out of IRL520s (L = logic).




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wolframore

#8
Jan 12, 2019, 09:16 pm Last Edit: Jan 12, 2019, 09:16 pm by wolframore
It'll work just not as efficient as we like mosfets to be. I've seen kits with IRF540 also.
Bad Boys Rate Our Young Girls But Violet Goes willingly - Get Some Now :) - ELI the ICE man

larryd

"It'll work just not as efficient as we like mosfets to be."

Yes, for very low current drive only.


No technical PMs.
If you are asked a question, please respond with an answer.
If you are asked for more information, please supply it.
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Sandro2504

They are packaging the wrong MOS FET for direct Arduino driving.

Maybe they ran out of IRL520s (L = logic).





Official Arduino Store = IRF520
https://store.arduino.cc/genuino-starter-kit


German Seller = IRF520
https://www.conrad.de/de/arduino-starter-kit-starter-kit-german-deutsch-atmega328-1456487.html

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

larryd

#11
Jan 12, 2019, 09:26 pm Last Edit: Jan 12, 2019, 09:34 pm by larryd
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:



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wolframore

#12
Jan 12, 2019, 09:55 pm Last Edit: Jan 12, 2019, 10:02 pm by wolframore
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. 

Arduino Project Book

This is why everyone asks about the IRF520

Here the kit that goes with the book.

Arduino Starter Kit
Bad Boys Rate Our Young Girls But Violet Goes willingly - Get Some Now :) - ELI the ICE man

Grumpy_Mike

#13
Jan 12, 2019, 09:57 pm Last Edit: Jan 12, 2019, 10:02 pm by Grumpy_Mike
Quote
Official Arduino Store = IRF520
https://store.arduino.cc/genuino-starter-kit
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.

wolframore

Bad Boys Rate Our Young Girls But Violet Goes willingly - Get Some Now :) - ELI the ICE man

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