Need help to determine the npn transistor size and bias resistor resistance calculation for a curcuit the will drive a 12v 20 ohm dc soleniod.
The digital bias voltage is 5v for high 40ma max rating.
Any help would be greatly app.
See attached diagram.
The digital bias voltage is 5v for high 40ma max rating.
Any help would be greatly app.
See attached diagram.
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