MIL-PRF-15733/59B
REQUIREMENTS:
Dimensions and configuration: As specified in figure I.
Case: Metal.
Case and hardware finish: In accordance with MIL-PRF-15733. Pure tin is prohibited as an undercoat and as a
final finish.
Seal: Glass to metal.
Terminals: Solderable (see figure 1). Pure tin is prohibited as an undercoat and as a final finish.
Operating temperature range: -55C to +125C.
Rated voltage: See table I.
Rated current: See table I.
Voltage drop: See table I.
Insertion loss: See table I.
Temperature rise: In accordance with MIL-PRF-15733. Temperature rise shall be +25C, maximum.
Dielectric withstanding voltage: In accordance with MIL-PRF-15733. The following exception shall apply:
Test voltage: 2 times rated voltage (V dc).
Barometric pressure (reduced): In accordance with MIL-PRF-15733 and method 105, MIL-STD-202; test condition D.
Inrush transients test: the filters shall be subjected to test by instantaneous application of 115 V rms, 400 Hz to the
filter with the output unloaded. The source impedance shall be less than 0.5 ohm and its energy capability shall not
limit the inrush current to the filter. The filters shall be subjected to this inrush a minimum of 10 times, with a
maximum time of 5 minutes between applications. The input shall always be into the inductor for non-symmetrical
filters.
Measurements after test: Insulation resistance (at +125C) and insertion-loss shall meet initial requirements.
Transient voltage test: The filters shall be subjected to the overvoltage allowed by MIL-STD-704 for ac systems.
The following details and exceptions shall apply:
Preconditioning: Filter shall be energized at 115 V rms, 400 Hz carrying rated current for 15 minutes minimum.
Transient application: The output load shall be removed and the input voltage shall be stepped form 115 V rms
to 180 volts within 20 milliseconds of removal of the load. The step from 115 to 180 volts shall be accomplished
with a rise time of less than 60 milliseconds. The 180 volts shall be maintained for 100 milliseconds minimum.
This cycle shall be repeated 10 times.
Measurements after test: Insulation resistance (at +125C) and insertion-loss shall meet initial requirements.
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