Hi!

For this kind of thing, I use the IRLZ24N Mosfet.
It as a TTL levels gate and can handle several amps.
More, it has a free wheel diode built in to drive
coils safely.

Gael


Chris Camerlin wrote:
>
> Hey everyone,
>
> I'm using a 16F84 in a keyless entry project.  In this project a need to
> unlock an electric door strike from port a.  All of the door strikes
> that I have found run off of either 24V@120mA,  12V@280mA, or 5V at 1A
> (or close to those currents).  The 16F84 will only source 50mA.  Does
> anyone have any suggestion to make this work.  Should I amplify the
> current and use an optocoupler or something else.
> Thanks
> Chris Camerlin