A 40 pin DIP (Dual inline package, electronic equipment) with standard lead wires, 2.0 in length will be installed at the center of a 9.0 x 7.0 x 0.080 in plug-in PCB. The DIP will be mounted parallel to the 9 in edge. The assembly must be capable of passing a 5.0g peak sine vibration qualification test with resonant dwell conditions. Determine the minimum desired PCB resonant frequency for a 10 million cycle fatigue life, and the approximate fatigue life.
