The present invention provides an inbred corn line designated NPFX6247, methods for producing a corn plant by crossing plants of the inbred line NPFX6247 with plants of another corn plant. Accordingly, the resistance against common mode noise is increased. The speed of the motor and the DC motor power are then determined. The barrier enables use of higher current densities for advanced complementary metal-oxide semiconductors designs, and extends the reliability of current CMOS designs regardless of solder selection.