MIL-PRF-87217/1A
TABLE II. DC ratings.
Styles
Volts, dc
30
CHS01
50
CHS02
100
CHS03
Operating temperature range: -55 C to +100 C.
Thermal shock: In accordance with MIL-PRF-87217 with the following exception:
20 cycles, -55 C to +100 C, nonenergized with a 5-minute maximum wait between chambers.
DC burn-in: In accordance with MIL-PRF-87217 with the following exception:
160 hours minimum at +100 C with 1.5 0.5 V dc and 1.0 through 10.0 megohms resistor in series with each
capacitor.
Insulation resistance (IR): Method 302 of MIL-STD-202. The following details shall apply:
a. Test potential: Rated voltage
b. Points of measurement:
Terminal to terminal: Between terminals at the applicable specified temperatures, and at 25 C 3 C.
c. Charge time 5 minutes maximum; however, for capacitance values greater than 1.0 F, an additional 1
minute per F is permitted.
d. See figure 2 for limits.
Capacitance: Method 305 of MIL-STD-202. The following details shall apply:
a. Test frequency: 1,000 100 hertz (Hz).
b. Limit of accuracy:
0.05 percent.
Seal: Method 112 of MIL-STD-202, test condition C, procedure IIIa, followed by test condition A with the exception
of the following:
R1
2
Maximum
Exposure time
Reject limit
1bf/in
3
hours
dwell hours
(atm cm /s)
-6
1 +1, -0
1
1 X10
45
5
High impedance dc life: The capacitors shall be tested 250 hours at 100 C with 1.5 0.5 volts dc and 1 through 10
megohms resistor in series with each capacitor so that the energy from source or across the capacitor is 500
microjoules, maximum. The following details shall apply.
a. Insulation resistance - terminal to terminal: Shall meet the initial requirements.
b. Capacitance: Shall meet the initial requirements.
c. Dissipation factor: Shall meet the initial requirements.
6