MIL-PRF-15733/34R
REQUIREMENTS:
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Interface and physical dimensions: See figure 1.
Weight: See figure 1.
Case: Metal.
Case and mounting hardware finish: In accordance with MIL-PRF-15733. Pure tin finish is prohibited as an
undercoat and as a final finish (see MIL-PRF-15733).
Terminals: Solderable. Pure tin finish is prohibited as an undercoat and as a final finish (see MIL-PRF-15733).
Operating temperature range: -55°C to +125°C.
Rated voltage: See table I.
Rated current: See table I.
Insertion loss: at 25°C and temperature extremes, see table I.
Voltage conditioning (applicable to conformance inspection only): Prior to group A inspection, 100 percent of each
lot of filters shall be subjected to voltage conditioning as follows:
Test temperature: +125°C, +4°C, -0°C.
Test voltage:
For dc rated filters: 2 times rated voltage.
For ac and dc rated filters: 1.2 times rated ac voltage at maximum rated frequency.
Duration of exposure to test voltage: 100 ±4 hours (-0001 through -0021, and -0029 through -0033); and
164 ±4 hours (-0022 through -0028 and -0034).
Measurements after completion of exposure: While filters are stabilized at +125° C, insulation resistance shall
be measured at +125°C. Filters shall then be stabilized at +25°C, and insulation resistance shall be measured.
Insulation resistance (at +125°C): Shall be not less than 100 megohms.
Insulation resistance (at 25°C): Shall be not less than 1,000 megohms.
A reject shall be defined as a filter whose insulation resistance does not meet the requirements specified in
this test. If the total rejects from any particular lot exceed 10 percent, the entire lot shall be rejected.
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Radiographic inspection: Prior to group A inspection and following voltage conditioning, 100 percent of each lot of
filters shall be subjected to radiographic inspection as follows:
a. Radiographic quality: The radiograph shall render a clear sharp image of the penetrameter.
b. Image quality indicator: A radiograph of the penetrameter shall be included on each radiographic film. The
penetrameter may be made from a sample filter of the same type as the filter being radiographed, with an
AWG number 48 tungsten wire mounted across the filter body.
c. Positions of specimen: Two views normal to the major axis of the part shall be taken. One view shall be 90
degrees from the other.
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