MIL-T-27/170C
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: 1 milliwatt.
Working voltage: 175 volts maximum. Primary current: 4 milliamps, dc. Primary impedance (1-2): 600 ohms.
Secondary load impedance (3-5): 1,200 ohms center tap.
DC resistance:
(1-2): 47 ohms ±25 percent. (3-5): 93 ohms ±25 percent.
Design and construction:
Dimensions and configurations: See figure 1. Duty cycle: Continuous.
Case: Epoxy.
Altitude: 15,000 feet, maximum. Terminals: Pin (printed circuit).
Material: Nickel iron alloy tin dipped. Diameter: 0.040 ±0.005.
Length: 1.56 ±0.032.
Weight: 1.750 ounces, maximum.
Operating temperature range: -55°C to +105°C
Terminal strength: MIL-STD-202, method 211, test condition A, 2 pounds.
Resistance to soldering heat: MIL-STD-202, method 210, temperature 271°C ±5°C (520°F ±9°F), and immersion 15 seconds duration minimum.
Vibration (high frequency): MIL-STD-202, method 204, test condition D.
Shock (specified pulse): MIL-SDT-202, method 213, test condition I, except 11 milliseconds duration and half sine waveform.
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