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ArcticMyst Security by Avery

Mosfet??? to prevent switch melting???

Jan 12, 2008
The resistor is needed to ensure that the mosfet turns itself off. The circuit will behave strange without it, like the mosfet latching on, or turning on by itself. 1 ohm is way too low value and will waste a lot of power. Instead, 10K is a very good common value for this, but you can use anything between 1k to 100k.

Optionally you can also put a resistor in series between the gate and the button if you like, ideally anything between 10 ohm to 100 ohm.