MIL-PRF-27/192A
REQUIREMENTS: (When designations or colors in parentheses, i.e., (1-2) are used,
they indicate the winding and the extreme terminals of the winding.)
Electrical ratings:
Primary voltage (5-6): 60 volts rms, 7.7 kilohertz.
Primary current: .5 ampere rms.
Primary power: 30 volt ampere.
Secondary voltage:
(1-3): 8.6 volts rms, 300 milliamperes rms.
(7-9): 8.6 volts rms, 6 milliamperes rms.
Working voltage: 175 volts, maximum.
DC resistance:
(1-3): .043 ohm.
(7-9): .09 ohm.
(5-6): .49 ohm.
Design and construction:
Dimensions and configuration: See figure 1.
Duty cycle: Continuous.
Case: Encapsulated.
Material: Epoxy.
Weight: 3 ounces.
Terminals: Pin type.
Material: Type S with tin, lead, or lead alloy coating, in accordance with A-A-59551.
Height: .350 inch, minimum.
Diameter: AWG 20 (.032 inch).
Operating temperature range: -55°C to +130°C.
Terminal strength: MIL-STD-202, method 211, test condition A, 5 pounds.
Dielectric withstanding voltage (at sea level): 1,000 volts rms.
Electrical characteristics:
No load: With 60 volts rms and 7.7 kilohertz in (5-6):
Current in (5-6): 22 milliamperes, maximum.
Power in (5-6): 1.2 watts, maximum.
Voltage across (5-6): 60 volts rms.
Voltage across (1-3): 8 volts rms ±1 percent.
Voltage across (7-9): 8 volts rms ±1 percent.
Rated load: With 60 volts rms and 7.7 kilohertz (5-6):
Voltage across (1-3): 8.6 volts rms ±5 percent.
Voltage across (7-9): 8.6 volts rms ±5 percent.
Polarity: Additive with terminals 1 and 9 connected.
Temperature rise: 40°C with 60 volts rms, 7.7 kilohertz across (5-6) at an ambient temperature
of +125°C..
Vibration, high frequency: MIL-STD-202, method 204.
Shock (specified pulse): MIL-STD-202, method 213, test condition A.
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