MIL-PRF-27/165E
REQUIREMENTS: (When numbers in parentheses, i.e., (1-2) are used, they indicate the winding and the
extreme terminals of the winding.)
Electrical ratings: See table I.
Working voltage: 175 volts.
Frequency range: See table II.
Duty cycle: Continuous.
Design and construction:
Dimensions and configurations: See figure 1.
Case: Plastic/molded.
Terminals: Pin type, .040 inch diameter (1.02 mm) (see figure 3 for pin arrangement)
Material: Type LW ( )C5N in accordance with MIL-STD-1276.
Weight: 1.0 ounce maximum.
Altitude: 75,000 feet maximum.
Operating temperature range: -55°C to +105°C.
Terminal strength: MIL-STD-202, method 211, test condition A, 2.0 pounds.
Vibration (high frequency): MIL-STD-202, method 204.
Dielectric withstanding voltage: Between split sections, 50 volts rms maximum.
At sea level: 500 V rms.
At reduced barometric pressure: 300 V rms.
Electrical characteristics:
Frequency response: See table II
Reference frequency: 1kHz
No load (center tap voltage unbalance only) ±1 percent at 1 volt, 1 kHz across the primary.
Marking location: See figure 1.
Electrostatic shielding: Shielding ratio 5.1 minimum at 20 kHz applicable to circuit diagram 5 only.
Part or Identifying Number (PIN): M27/165-(dash number from table I).
NOTE: Where dual ratings are specified, only frequency response shall be tested in both modes of operation.
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