100 milliamp coil current...transistor or MOSFET?

Other Hardware General Electronics
12

chris8644:
Hey I have read that if your coil current is 100 milliamps or above one should use a mosfet instead of a transistor.

coil resistance = 50 ohms
5vdc coil

My problem is that I have not yet found a definitive answer.

When using the mosfet (if it is needed) do I remove the 10K ohm resistor to the arduino pin?

Thanks for the help!

MOSFET. No resistor between the gate and the Arduino pin. A snubber diode across the relay coil (hefty one like a 1N4001).