For a project, I am trying to find a way to power a small rotary solenoid.
The solenoid resistance is 27 Ohms and requires 5V to turn, so it will draw 185.2mA. I know that there are 5V across the USB VCC and Ground pins. What I have read online about USB 3.0 current limitations has confused me. I have read that a USB 3.0 port (on a computer) will support up to 900mA to be drawn from it safely, but I have also read a lot of other stuff saying that one port can only support up to 100mA.
Basically, I am confused by the wording of what I have read. My question is: can a computer's USB 3.0 port safely deliver enough power to turn my solenoid? Again, that's 185.2mA.
Thanks for the help.