MIL-PRF-27/323C
REQUIREMENTS: (When numbers in parentheses, i.e., (1-2) are used, they indicate the winding and
the extreme terminals of the winding.)
Electrical ratings:
Power level: See table I.
Working voltage: 535 V maximum, all windings.
Frequency range: 300 Hz to 4,000 Hz.
Design and construction:
Dimensions and configuration: See figure 1.
Duty cycle. Continuous.
Case: Encapsulated.
Material: Epoxy.
Terminals: Printed circuit pins, solderable.
Height: See figure 1.
Weight: See figure 1.
Operating temperature range. -55°C to +105°C.
Altitude: 10,000 feet, maximum.
Terminal strength: MIL-STD-202, method 211, test condition A, 2.0 pounds.
Dielectric withstanding voltage: MIL-STD-202, method 301.
Test voltage: 1,500 volts rms.
Electrical characteristics:
Frequency response: At rated source and load impedances (see table I), with maximum power
output (see table I) over frequency range of 300 Hz to 4,000 Hz, the response shall be within the
limits specified in table I. Reference frequency shall be 1 kHz.
Insertion loss: At specified power level (see table I) at 1 kHz, the insertion loss shall not
exceed 1.2 dB.
Harmonic distortion: Total harmonic content of the output shall not exceed 0.5 percent at the
specified power level (see table I) and primary dc current (see table I).
across (3-5) shall be as specified in table I.
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