MIL-PRF-87217A
4.7.3 Burn-in (see 3.7). Capacitors shall be tested as follows:
a. Time: 160 hours minimum.
b. Temperature: +100 C
c. Voltage: 1.5 0.5 V dc applied through a resistor of value between 1.0 megohm through 10.0 megohm in
series with each capacitor.
TABLE I. Group A inspection.
Number of
Number of
Requirement
Test
defectives
sample units to
Inspection
paragraph
method
permitted
be inspected
paragraph
Subgroup 1
Thermal shock
3.6
4.7.2
100 percent
Subgroup 2 1/
Burn-in
3.7
4.7.3
High impedance temperature
100 percent
and voltage ramp test 2/
3.8
4.7.4
Subgroup 3 1/
4.7.5
3.9
Insulation resistance 3/
100 percent
4.7.6
3.10
Capacitance
4.7.7
3.11
Dissipation factor
Subgroup 4 1/
Seal
3.12
4.7.8
100 percent
Radiographic inspection 4/
3.13
4.7.9
Subgroup 5 5/
4.7.10
3.14
High impedance dc life
20
0
4.7.5
3.9
Insulation resistance 6/
4.7.6
3.10
Capacitance
4.7.7
3.11
Dissipation factor
Subgroup 6
Visual inspection (external)
3.1, 3.4, 3.5, 3.16,
4.7.1
13
0
and 3.18
1/
Percent defective allowable (PDA) = 5 percent.
2/
DC leakage failure if greater than .05 A.
3/
At +25 C and +100 C with a 1-2 megohm series resistor, rated voltage.
4/
This test can be any place in sequence following subgroup 1.
5/
Parts may not be shipped.
6/
At +25 C rated voltage and initial limits.
7
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