1) CLR79 and CLR81 styles can be a source of transient potentials (intermittent shorts) during vibrational stimuli. Consult the project parts engineer for recommendations.

2) CLR79, CLR81, CLR90 and CLR91 tantalum capacitors are polar devices that are sensitive to reverse bias voltage.  Reverse bias application of these parts should be avoided.  Per MIL-PRF-39006 these capacitors are capable of handling up to 3 volts of reverse polarity at 85°C regardless of capacitor voltage rating with some degradation in their leakage current characteristics.  Exceeding 3 volts reverse bias may cause rapid deterioration of the capacitor which can lead to catastrophic failure (short circuit).  Refer to NEPAG Lesson Learned Bulletin NEPAG-LLB-2001-002 for further details.

3) M39006 style capacitors rated at 125 V are NOT recommended for use and are therefore NOT listed within the NPSL.  In order to produce the higher voltage ratings the manufacturers use alternate process steps compared to the lower voltage styles. These alternate process steps have NOT been found to consistently produce reliable parts as evidenced by frequent stop shipment orders by the Military qualifying activity.