MIL-T-27/99C
REQUIREMENTS: (When numbers in parentheses, such as (1-2) are used, they indicate the winding and the extreme terminals of the winding.)
Electrical ratings:
Primary voltage (1-2-3-4): 4.75/7.125/14.25 volts pk, 3 kHz square wave. Primary current:
(1-2): 16 mA. (1-4): 8 mA.
Secondary voltage (5-6-7-8-9): 225/600/675/750 mV pk. Secondary current (5-9): 100 mA.
Design and construction:
Dimensions and configuration: See figure 1. Duty cycle: Continuous.
Case: Encapsulated.
Material: Epoxy. Terminals: Brass, solder type.
Terminal height: 0.250 +.000, -.050 inch (6.35 +0.00, -1.27 mm). Weight: 34.02 grams.
Operating temperature range: -40°C to +130°C.
Terminal strength: MIL-STD-202, method 211, test condition A, 2.0 pounds. Dielectric withstanding voltage (at sea level): 500 V rms.
Electrical characteristics:
No load: With 14.25 volts pk, 3 kHz across (1-4), the voltage across (5-6) shall be 0.25 volts pk ±3.0 percent, voltage across (5-7) shall be 0.617 volts pk ±3 percent, voltage across (5-8) shall be 0.695 volts pk ±3.0 percent, and voltage across (5-9) shall be 0.77 volts pk ±3.0 percent.
Rated load: With 14.25 volts pk, 3 kHz across (1-4), the voltage across (5-9) shall be 750 mV pk ±10 percent. DC resistance:
(1-4): 7.9 to 10.7 ohms. (5-9): .040 to .060 ohm.
Vibration, high frequency: MIL-STD-202, method 204, test condition A. Shock (specified pulse): MIL-STD-202, method 213, test condition H. VERIFICATION
Qualification inspection: Not applicable.
Conformance inspection: Groups A and B tests of MIL-PRF-27 shall be applicable. Marking location: See figure 1.
Part or Identification Number (PIN): M27/99-01.
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