MIL-PRF-27/167E
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 (peak): 175 volts peak.
Frequency range: 300 hertz to 20 kilohertz.
Design and construction:
Dimensions and configurations: See figure 1.
Duty cycle: Continuous.
Case: Plastic.
Terminals: Pin type, .040 ±.005 inch diameter.
Material: Type LW(---)C5N in accordance with MIL-STD-1276.
Weight: 20 grams 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, test condition D.
Dielectric withstanding voltage:
At sea level: 500 V rms.
At reduced barometric pressure: 300 V rms.
Electrical characteristics: See table II.
Frequency response: See table II.
Reference frequency: 1 kilohertz.
Insertion loss: At the rated power level at 1 kilohertz, the insertion loss shall be as specified in table II.
No load (centertap voltage unbalance only): With 1 volt, 5 kilohertz across the primary the voltage
unbalance shall be ±1 percent.
Marking location: See figure 1.
Part or Identifying Number (PIN): M27/167-(dash number from table I).
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