MIL-PRF-15733J
4.6.17.2 High frequency (when specified; see 3.1). Filters shall be tested in accordance with method 204 of MIL-
STD-202. The following details and exceptions shall apply:
a. Mounting of specimens: Filters shall be rigidly mounted by the body.
b. Electrical-load conditions: As specified in 4.6.17.1d.
c. Test condition letter: As specified (see 3.1).
d. Tests during vibration: During the last cycle in each direction, an electrical measurement shall be made
to determine intermittent open- or short-circuiting.
e. Examination after test: As specified in 4.6.17.1f.
4.6.18 Moisture resistance (see 3.21). Filters shall be subjected to thermal shock as specified in 4.6.15.1. Filters
shall then be tested in accordance with method 106 of MIL-STD-202. The following details and exceptions shall
apply:
a. Mounting: Securely fastened by normal mounting means.
b. Initial measurements: Not applicable.
c. Polarization voltage: During steps 1 to 6, inclusive, a dc potential of 100 volts or rated dc volts,
whichever is less, shall be applied between the terminals and case. The potential applied to the
terminals shall be positive with respect to the case.
d. Final measurements: Following the 24-hour conditioning period, dielectric withstanding voltage with 90
percent of the voltage specified in 4.6.5 applied for 5 ±1 second, insulation resistance, and insertion
e. Visual examination: After the test, filters shall be visually examined for corrosion (see 3.17) and
obliteration of marking.
4.6.19 Life (see 3.22). Filters shall be tested in accordance with method 108 of MIL-STD-202. The following
details and exceptions shall apply:
a. The filters shall be separated from each other by a distance of not less than 1 inch (25.4 mm) during
measurements.
b. The filters shall be operated at maximum operating temperature.
c. Filters shall be suspended by their terminals during the test.
d. Test condition letter: as specified (see 3.1).
e. Filters shall be energized with rated current at maximum rated frequency.
f. During the test, radiant shields may be placed between units so that overheating of one unit will not
affect a nearby unit.
g. When both ac and dc voltage ratings are given, the ac voltage shall be used. The life test voltage shall
be 1.2 times the rated ac voltage. Filters with only dc ratings shall be tested at 1.4 times the rated
dc voltage.
h. After the life test, dielectric withstanding voltage with 90 percent of the specified voltage applied for
5 ± 1 seconds, and insulation resistance, and insertion loss shall be measured as specified in 4.6.5,
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