I wanna know if I should use resistor while connecting to base of TRANSISTOR TIP120 from arduino digital pin or is it okay to directly connect, coz I tried with BC547B transistor and it got heated up.

Transistor help please

slipstick April 19, 2018, 3:29pm 2

Have you ever seen a published circuit with a TIP120 connected to an Arduino without a base resistor? So what do you think?

Steve

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