MIL-PRF-39022/10B
Low temperature and capacitance change with temperature:
Low temperature: -55°C +0°C, -3°C for 48 ±4 hours with rated voltage applied.
Capacitance change with temperature:
At -55°C +0°C, -3°C, +0, -2 percent.
At +85°C +4°C, -0: ±1 percent.
At +125°C +4°C, -0°C: ±2 percent.
Fault count: Not applicable.
Fungus: Method 508 of MIL-STD-810.
Life: Method 108 of MIL-STD-202.
Qualification:
Accelerated conditions: 140 percent of rated voltage for 2,000 +72, -0 hours at 85°C. End of life
requirements as specified for rated conditions.
Rated conditions: 100 percent of rated voltage for 10,000 +96, -0 hours at 85°C.
DF (at +85°C +4°C -0°C) between first 24 and 48 hours of test:
Not greater than initial limit.
DF (at +85°C +4°C -0°C) during last 48 hours of test:
0.8 percent, maximum.
IR:
Insulating sleeves: 100 megohms, minimum.
Terminal to terminal: Not less than 30,000 megohm-microfarads or 75,000 megohms.
Terminals to case (when case is not a terminal): 30,000 megohms, minimum.
Capacitance: Within ± 5 percent of initial value.
DF (at +25°C ±3°C) after life: 0.5 percent maximum.
Extended life:
Accelerated conditions: 2,000 +75, -0 hours.
Rated conditions: 10,000 +96, -0 hours.
IR, Capacitance, and DF: Same requirements as for qualification life test.
125°C verification life test: 85°C rated voltage for 2,000 +75, -0 hours at 125°C. 25 pieces representative of
production shall be tested every six months.
IR, Capacitance, and DF: Same requirements as for qualification life test.
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