MIL-PRF-27/180B
Dielectric withstanding voltage (at sea level): 1500 volts rms.
Electrical characteristics:
No load: With 115 volts, 400 Hz across (1-4), current in (1-4) shall not exceed 90 milliamperes
and the power in (1-4) shall not exceed 5 watts:
Voltage across (5-6): 13.05 volts ±2 percent.
Voltage across (7-9): 13.05 volts ct ±2 percent.
Rated load: With 115 volts, 400 Hz across (1-4):
Voltage across (5-6): 12.6 volts ±2 percent.
Voltage across (7-9): 12.6 volts ct ±2 percent.
DC resistance:
(1-4): 3.5 ohms maximum.
(5-6): 0.112 ohm maximum.
(7-9): 0.102 ohm maximum.
Polarity: Additive, with terminals (4-5) and (6-7) connected.
Temperature rise: +40°C maximum with 115 volts rms, 400 Hz across (1-4) at an ambient
temperature of +90°C.
Marking location: See figure 1.
Part or Identifying Number (PIN): M27/180-01. The term Part or Identifying Number (PIN) is
equivalent to the term part number which was previously used in this specification.
Changes from previous issue. The margins of this specification are marked with vertical lines to
indicate where changes from the previous issue were made. This was done as a convenience only and
the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and
contractors are cautioned to evaluate the requirements of this document based on the entire content
irrespective of the marginal notations and relationship to the last previous issue.
Referenced documents. In addition to MIL-PRF-27, this document references the following:
MIL-STD-202
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