MIL-PRF-15733/58C
REQUIREMENTS:
Dimensions and configurations: See figure 1.
Case: Metal.
Case and Hardware finish: In accordance with MIL-PRF-15733. Pure tin is prohibited as an undercoat and final
finish.
Seal: Glass to metal.
Terminals: Solderable (see figure 1). In accordance with MIL-PRF-15733. Pure tin finish is prohibited as an
undercoat and final finish.
Operating temperature range: -55°C to +125°C.
Rated voltage: See table I.
Rated current: See table I.
Voltage drop: See table I.
Insertion loss: see table I.
Seal: In accordance with MIL-PRF-15733 and Method 112, MIL-STD-202; test condition A or D.
Capacitance to ground: In accordance with MIL-PRF-15733. The following detail shall apply:
Measured capacitance: 1.4 µF, -0, +100 percent.
Temperature rise: In accordance with MIL-PRF-15733. Temperature rise shall be 25°C, 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 305, MIL-STD-202; test condition D.
Inrush transients test: The filters shall be subjected to test by instantaneous application of 28 V dc to the filter with
the output unloaded. The source impedance shall be less than 0.1 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 nonsymmetrical filters.
Measurements after test: Insulation resistance (at +125°C) and insertion loss shall meet initial requirements.
Transient voltage test: The filters shall be subjected to the overvoltage allowed by MIL-STD-704 for a 28 volt dc
system. The following details and exceptions shall apply:
Preconditioning: Filter shall be energized at 28 V dc carrying rated current for 15 minutes minimum.
Transient application: the output load shall be removed and the input voltage shall be stepped from 28 volts to
80 volts within 20 milliseconds of removal of the load. The step from 28 to 80 volts shall be accomplished with a
rise time of less than 1.0 millisecond. The 80 volts shall be maintained for 100 milliseconds minimum. This
cycle shall be repeated 10 times.
Measurements after test: Insulation resistance (at +125°C) and insertion loss shall meet initial requirements.
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