1、AMSC N/A FSC 5950 INCH-POUND MIL-T-27/181C 29 September 2009 SUPERSEDING MIL-T-27/181B 4 April 1989 MILITARY SPECIFICATION SHEET TRANSFORMER, POWER, STEP-DOWN AND STEP-UP This specification is approved for use by all Depart- ments and Agencies of the Department of Defense. The requirements for acqui
2、ring the transformer described herein shall consist of this specification sheet and MIL-PRF-27. FIGURE 1. Dimensions and configuration. Inactive for new design after 25 August 1998 .437.0313.125 +.000 -.188 .375 .062 (NO. 6).138-32 MTG STUD x .406 LG 4 REQD. 2A FIT UTC NO. NC-3 OR EQUAL TERMINAL .31
3、2 DIA8 EQUALLY SPACED ON A 1.000 .03 DIA. CIRCLE CL1.438 .016 C L 123456782.062 +.000 -.125 1.688.0162.312+.000-.125Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-27/181C 2 Inches mm Inches mm .016 0.41 .375 9.52 .03 0.8 .406 10.31 .031 0.79 .
4、437 11.10 .062 1.57 1.000 25.40 .125 3.18 1.438 36.53 .138 3.51 1.688 42.88 .188 4.78 2.062 52.37 .312 7.92 2.312 58.72 3.125 79.38 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. 3. Tolerance on terminal position dimensions is .015 (0.38 mm). 4. Mar
5、king shall be on the side of the case. FIGURE 1. Dimensions and configurations Continued. CTCT115 V 60 Hz 1 2 6783452 A WV = 535 VOLTS PKCIRCUIT DIAGRAM AND MARKING Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-27/181C 3 REQUIREMENTS: (When n
6、umbers in parentheses, such as (1-3) are used, they indicate the winding and the extreme terminals of the winding.) Electrical ratings: Primary voltage: (1-2): 115 volts, 60 Hz. Secondary voltage: (3-5): 6.3 volts ct, 2 amperes rms. (6-8): 450 volts ct, 30 milliamperes dc. Working voltage: 535 volts
7、 peak. Volt-ampere rating: 26.1 volt-ampere. Design and construction: Dimensions and configuration: See figure 1. Duty cycle: Continuous. Case: Metal. Material: Steel. Terminals: Solder lug. Terminal height: .437 .031 inch (11.10 0.79 mm). Weight: 2.0 pounds, maximum. Operating temperature range: -5
8、5C to + 130C. Terminal strength: MIL-STD-202, method 211, test condition A, 5.0 pounds. Dielectric withstanding voltage (at sea level): 1,500 volts rms. Electrical characteristics: No load: With 115 volts, 60 hertz across (1-2), current in (1-2), shall not exceed 200 milliamperes and the power in (1
9、-2) shall not exceed 2 watts. Voltage across (3-5): 7.27 volts 3 percent; voltage across (6-8): 514 volts 3 percent. Rated load: With 115 volts, 60 hertz across (1-2), the voltage across (3-5) shall be 6.3 volts 3 percent with 2 amperes load; the voltage across (6-8) shall be 450 3 percent with 30 m
10、illiamperes load. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-27/181C 4 DC resistance: (1-2): 30 ohms, maximum. (3-5): .25 ohm, maximum. (6-8): 1,770 ohms, maximum. Polarity: Additive, with terminals 2 and 3, and 5 and 6 connected. Temperat
11、ure rise: +40C maximum with 115 volts, 60 hertz across (1-2) at an ambient temperature of +90C. Shock (specified pulse): MIL-STD-202, method 213, test condition H. Marking location: See figure 1. Part or Identification Number (PIN): M27/181-01. Changes from previous issue. The margins of this specif
12、ication 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 th
13、is 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
14、 (Project 5950-2009-013) DLA - CC Review activities: Army - AR, CR4 Navy - AS, MC, OS, SH 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 http:/assist.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
