MIL-PRF-27/190A
REQUIREMENTS: (When designations or colors in parentheses, i.e., (COM-HV) (BLK-WHT) are used,
they indicate the winding and the extreme terminals of the winding.)
Electrical ratings:
Inductance (1-2): .25 millihenry, minimum.
Voltage (1-2): 2.5 volts rms, 20 kilohertz.
Current (1-2): .75 ampere dc.
DC resistance (1-2): 2 ohms, maximum.
Working voltage: 100 volts, maximum.
Design and construction:
Dimensions and configuration: See figure 1.
Duty cycle: Continuous.
Case: Encapsulated.
Material: Epoxy.
Weight: 9.07 grams, maximum.
Terminals: Pin type, tinned copper.
Height: .500 inch, maximum.
Diameter: .030 inch.
Operating temperature range: -55°C to +130°C.
Terminal strength: MIL-STD-202, method 211, test condition A, 2 pounds.
Shock (specified pulse): MIL-STD-202, method 204
Vibration, high frequency: MIL-STD-202, method 204, test condition A.
Dielectric withstanding voltage (at sea level): 500 volts rms.
Electrical characteristics:
Inductance: With 2.5 volts rms, 20 kilohertz and .75 ampere dc applied to (1-2) the
inductance shall be .25 millihenry, minimum.
Temperature rise: 20°C with 2.5 volts rms, 20 kilohertz, .75 ampere dc applied to (1-2) at an
ambient temperature of +125°C.
2
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