I have a BS1 connected to a 2N2222 relay driver transistor's base through a 390 ohm resistor. The emitter is grounded. Vdd goes to the relay coil and protection diode and their other ends go to the 2N2222 collector. I measured the current at the emitter and got 40ma. after holding the relay closed for about 10 seconds, the 2N2222 is so hot it could give one a blister. Is this normal? Thanks.