MIL-PRF-27/76D
REQUIREMENTS: (When numbers in parentheses, such as (1.-3) are used, they indicate the winding and the
extreme terminals of the winding.)
Electrical ratings: See table I.
Working voltage (peak): 50 volts.
Frequency range: 300 hertz to 20 kilohertz.
Design and construction:
Dimensions and configuration: See figure 1.
Duty cycle: Continuous.
Case: Encapsulated.
Altitude: 150,000 feet, maximum.
Terminals: Dumet wire leads.
Material: Tin-lead plated type D4 in accordance with MIL-STD-1276.
Diameter: .016 inch (0.41 mm)
Length: .875 ±.125 inch (22.23 ± 3.18 mm).
Weight: 3.55 grams, maximum.
Operating temperature range: -55C to +105C.
Terminal strength: MIL-STD-202, method 211, test condition A, 2 pounds.
Dielectric withstanding voltage:
At sea level: 100 volts rms.
At reduced barometric pressure: 100 volts rms.
Electrical characteristics: See table II.
No load (centertap unbalance only): ±1 percent with 5 volts, 5 kilohertz across the primary.
Harmonic distortion: Total harmonic content of the output shall be a maximum 3 percent at the specified power
level and primary dc current (see table I).
Insertion loss: At the specified power level (see table I), the insertion loss shall be a maximum of 3.5 dB.
Frequency response: ±3 dB at the rated source and load impedances (see table II) with 1 milliwatt level
output and a reference frequency of 1 kilohertz.
Vibration, high frequency: MIL-STD-202, method 204, test condition D.
Marking location: See figure 1.
Part or Identifying Number (PIN): M27/76-(dash number from table I).
2
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