MIL-PRF-27/194B
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 (14-15): 60 volts rms, 7.7 kilohertz.
Primary current: .34 ampere rms.
Primary power: 20.4 volt amperes.
Secondary voltage:
(7-8): 19.5 volts rms, .6 ampere rms.
(2-3): 14 volts rms, .3 ampere rms.
(10-11): 62.8 volts rms, .013 ampere rms.
(4-6): 37.6 volts rms, .09 ampere rms.
Working voltage: 175 volts, maximum.
DC resistance:
(14-15): .4 ohm.
(7-8): .24 ohm.
(2-3): .35 ohm.
(4-6): 1.16 ohms.
(10-11): 10 ohms.
Design and construction:
Dimensions and configuration: See figure 1.
Duty cycle: Continuous.
Case: Encapsulated.
Material: Epoxy.
Weight: 4 ounces, maximum..
Terminals: Pin type.
Material: Type S, tin lead or lead-tin coating, in accordance with A-A-59551.
Height: .250 inch, minimum.
Diameter: AWG 22 (.025 inch).
Operating temperature range: see table I.
Terminal strength: MIL-STD-202, method 211, test condition A, 2 pounds.
Dielectric withstanding voltage (at sea level): 1,000 volts rms.
Electrical characteristics:
No load: With 60 volts rms and 7.7 kilohertz in (14-15):
Current in (14-15): 44 milliamperes, maximum.
Power in (14-15): 2.3 watts, maximum.
Voltage across (7-8): 19.5 volts rms ±1 percent.
Voltage across (2-3): 14 volts rms ±1 percent.
Voltage across (10-11): 62.8 volts rms ±1 percent.
Voltage across (4-6): 37.6 volts rms ±1 percent.
Rated load: With 60 volts rms and 7.7 kilohertz (14-15):
Voltage across (7-8): 19.5 volts rms ±5 percent.
Voltage across (2-3): 14 volts rms ±5 percent.
Voltage across (10-11): 62.8 volts rms ±5 percent.
Voltage across (4-6): 37.6 volts rms ±5 percent.
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