You guys have all been very helpful. In the FAQ it doesn't actually tell you that a minesweeper component can clear that many mines per square it hits each & every move it makes on the same turn. The component does say "per use" but that to me could have gone either way & I was preferring to not find out the hard way
Asking because I have a fleet of ships attacking multiple planets in one of my games (I believe 5 in one simultaneous turn). Didn't want to find out that the guy had 100 mines over the first planet & that my mine sweepers started to peter out after that.
Thanks again for all of your assistance.