MIL-PRF-27/357D
REQUIREMENTS:
Electrical ratings: See table I.
Working voltage (peak): 100 volts.
Frequency range: 300 Hz to 75 kHz.
Design and construction:
Dimensions and configuration: See figure 1.
Duty cycle: Continuous.
Terminals: Solid wire.
Composition: Copper clad steel.
Diameter: 0.016 inch ±0.001 (0.41 ±0.03 mm).
Length: 1.00 inch ±0.25 (25.4 ±6.35 mm).
Final finish: Use of tin-lead (Sn-PB) finishes are acceptable provided the minimum lead content
is 3 percent.
Weight: 5 grams max.
Altitude: 150,000 feet, maximum.
Operating temperature range: -55°C to +130°C.
Terminal strength: MIL-STD-202, method 211, test condition A, 2.0 pounds.
Thermal shock: 25 cycles, method 107, MIL-STD-202, test condition A-1.
Vibration (high frequency): MIL-STD-202, method 204, test condition B.
Dielectric withstanding voltage:
At sea level: 200 V rms.
At barometric pressure: 200 V rms.
Electrical characteristics:
No load (center tap unbalanced): ±1 percent at 1 volt, 5 kHz across the primary.
Harmonic distortion: Total harmonic content of output shall be a maximum of 5 percent at the specified
power level (see table I).
Insertion loss: At the specified power level (see table I), the insertion loss shall be a maximum of 3.0 dB at
1 kHz.
Frequency response: ±3 dB at the rated source and load impedances (see table 1) with 1.0 mW level
output and a reference frequency of 1 kHz over a frequency range of 300 Hz to 75 kHz.
Polarity: Additive when appropriate terminals are connected. For configuration A, connect terminals 3 and
4, 5 and 6. For configuration B, connect terminals 3 and 5 (see figure 1, configurations A and B).
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