MIL-PRF-27/193B
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 (1-9): 50 volts rms, 10 kilohertz.
Primary current: .006 ampere rms.
Primary power: .3 volt ampere.
Secondary voltage:
(2-8): 5 volts rms, .011 ampere rms.
(3-6): 8.06 volts rms, .3 ampere rms.
Working voltage: 100 volts, maximum.
DC resistance:
(1-9): 10.6 ohms.
(2-8): 1.5 ohms.
(3-6): .52 ohm.
Design and construction:
Dimensions and configuration: See figure 1.
Duty cycle: Continuous.
Case: Encapsulated.
Material: Epoxy.
Weight: .5 ounce.
Terminals: Pin type.
Material: Type S with tin, lead, or lead alloy coating, in accordance with A-A-59551.
Height: .500 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): 300 volts rms.
Electrical characteristics:
No load: With 50 volts rms and 10 kilohertz in (1-9):
Current in (1-9): 10 milliamperes, maximum.
Power in (1-9): .32 watt, maximum.
Voltage across (8-2): 5 volts rms ±1 percent.
Voltage across (3-6): 8.06 volts rms ±1 percent.
Rated load: With 50 volts rms and 10 kilohertz (1-9):
Voltage across (8-3): 5 volts rms ±10 percent.
Voltage across (3-6): 8.06 volts rms ±10 percent.
Polarity: Additive with terminals 9 and 8, and 2 and 3 connected.
Temperature rise: 20°C with 50 volts rms, 10 kilohertz across (1-9) at specified ambient
temperature. (see table I).
Vibration (high frequency): MIL-STD-202, method 204.
Shock (specified pulse): MIL-STD-202, method 213, test condition A.
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