I'm creating a DIY electronic lock with a solenoid lock. I'm using a NAND logic chip to control the state of the lock and the logic chip only outputs a maximum of 20mA current.
My power source outputs 12V with a max current of 2A. The solenoid lock requires 12V and 650mA. What transistor will when applied a 20mA current at the base will allow 12V and 650mA of current to flow from collector to emitter.
Any help would be appreciated. I'm finding it difficult to figure out all these things from the datasheet and tutorials on transistors. Cheers.