MIL-PRF-27/157E
Electrical characteristics:
No load: With 115 V and 60 Hz in (2-4):
Current in (2-4): 120 mA, maximum.
Power in (2-4): 1.5 watts, maximum.
Voltage across (5-7): 22.7 volts, ±3 percent.
Voltage across (8-10): 22.7 volts, ±3 percent.
Rated load: With 115 volts and 60 Hz across (2-4):
Voltage across (5-7): 20.25 volts, ±5 percent.
Voltage across (8-10): 20.25 volts, ±5 percent.
DC resistance:
(1-4): 27.4 ohms, ±25 percent.
(8-10): 2.6 ohms, ±25 percent.
(5-7): 2.43 ohms, ±25 percent.
Polarity: Additive, with terminals 1 and 5, and 7 and 8 connected.
Temperature rise: 40°C with 115 volts rms, 60 Hz across (2-4) at an ambient temperature of 90°C.
Marking location: See figure 1.
Part or Identification Number (PIN): M27/157-01.
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
Custodians:
Preparing activity:
Army - CR
DLA - CC
Navy - EC
Air Force - 85
(Project 5950-2009-047)
DLA CC
Review Activities:
Army AR, CR4, MI
Navy AS, MC, OS
Air Force 19, 99
NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations
and responsibilities can change, you should verify the currency of the information above using the ASSIST Online
database at https://assist.daps.dla.mil.
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