Back on topic...
The thing with these things is, if they have enough area of effect, you get a chain reaction. IE you send in a single lynx to detonate one mine, which the detonation sets off the nearby mines, which keeps going until there are no mines left and/or there is a big fat hole you can drive your tigers through. So large minefields would be out, but setting up a few in inaccessible areas would be a good idea.
The other idea I can think of is a 'minesweeper' unit which fires off weak EMP pulses to disable the mines (but not enemy vehicles because the emp pulse is too weak) and your units just hang around that minesweeper as it goes through the minefield.