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Choosing a Transistor ? Answered

Hello All..

I wan't to power up a 10A (12v)  loads with a Arduino .. What is best transistor for this job ?
Also what is the resistor value to use between Arduino ?

Thanks all..

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steveastroukBest Answer (author)2012-01-02

Use a mosfet, preferably with a logic-level input, like an IRL540.

You won't need a resistor.

Steve

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EZELab (author)steveastrouk2012-01-02

Steve,

Thanks for you replay.. this IRL540 is not available for me..
can I use IRF540 instated ?

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steveastrouk (author)2012-01-02

You need an IRL series, so you can switch it directly from the Arduino pin. You might get some other IRL series device instead.

Steve

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EZELab (author)steveastrouk2012-01-02

Unfortunately none of IRL series available on local market ...

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steveastrouk (author)EZELab2012-01-02

Try asking for a logic-level mosfet then - an IRF540 will struggle.

Where are you ?

Steve

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EZELab (author)steveastrouk2012-01-02

I am from Egypt..
What is the best IRF540 can effort ? 5 Amps ?

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steveastrouk (author)EZELab2012-01-02


Cairo ? There are some SERIOUSLY good place in Cairo, because I've been there hunting parts.

33 ! But you need to get the gate WELL on to saturate the gate - like 10V +

Steve

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EZELab (author)steveastrouk2012-01-02

Unfortunately not living in Cairo.. seems I'll travel to Cairo to get those mosfets ...
Thanks Steve, If you come to Cairo again wish to see you ( :

Thanks

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