1、AMSC N/A FSC 5950 INCH-POUND MIL-PRF-27/47C 9 November 2009 SUPERSEDING MIL-PRF-27/47B 7 February 1984 PERFORMANCE SPECIFICATION SHEET TRANSFORMERS, POWER, 25 VOLT AMPERES, 400 HZ ELECTROSTATIC SHIELDED This specification is approved for use by all Depart- ments and Agencies of the Department of Def
2、ense. The requirements for acquiring the transformer described herein shall consist of this specification sheet and MIL-PRF-27. NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. 3. Tolerance on terminal position dimensions is .005 (0.13 mm). 4. Marking
3、 shall be on the side of the case. 5. A white dot shall be marked on the side opposite the terminals, over terminal 1, in addition to the terminal marking shown. 6. Secondary electrical values shall be marked as specified in table I, as applicable. FIGURE 1. Dimensions and configurations 115 V 400 H
4、Z 12 345S.032 DIA .002 TYP.25.131.20MAX.032 DIA .002 TYP.25.131.20 MAX. CONFIGURATION ACONFIGURATION B1.40 MAX.1.100.9001.100 1.100 12 34561 2 3456.164-32 UNC-2B X .25 MIN. DEPTH .164-32 UNC-2BX .25 MIN. DEPTH“X“ VOLTAGE CT“X“ mA OR A.900 .900 MAX W V , “X“ VMAX ALT, 70,000(SEE TABLE I FOR VALUE OF
5、“X“)CIRCUIT DIAGRAM AND MARKINGS1.00 DIA.1.100.9001.40 MAX.1.40MAX.1.40 MAX. Inches mm .002 0.05 .02 0.5 .03 0.8 .032 0.81 .13 3.3 .164 .17 .25 6.4 .900 22.86 1.00 25.4 1.10 27.9 1.20 30.5 1.40 35.6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL
6、-PRF-27/47C 2 REQUIREMENTS: (When numbers in parentheses, such as (1-2) are used, they indicate the winding and the extreme terminals of the winding.) Electrical ratings: See table I. Primary voltage (1-2): 115 volts 10 percent, 400 Hz 5 percent. Design and construction: Dimensions and configuration
7、: See figure 1. Weight: 4.4 ounces, maximum. Duty cycle: Continuous. Case: Plastic encapsulated. Material: Plastic. Altitude: 70,000 feet, maximum. Operating temperature range: -55C to +130C, maximum. Terminals: Printed circuit pins - tinned brass. Terminal strength: MIL-STD-202, method 211, test co
8、ndition A, 2 pounds. Dielectric withstanding voltage: At sea level: 2.8 times the maximum working voltage specified in table I. At reduced barometric pressure: 1.25 times the maximum working voltage specified in table I. Electrical characteristics: No load: With 115 volts rms, 400 Hz across (1-2): C
9、urrent in (1-2) shall not exceed 25 mA rms. Rated load: With 115 volts, 400 Hz across (1-2) and a restrictive load with current as specified in table I in (3-5), the voltage across (3-5) shall be as specified in table I. Efficiency: 88 percent minimum at rated load. Electrostatic shielding: The volt
10、age ratio shall be a minimum of 5 to 1 at 20 kHz. Polarity: Additive with terminals 2 and 3 connected. Regulation: Voltage (no Load) - Voltage (rated load) x 100 Voltage (rated load) shall not exceed 7 percent. Phase shift: 1.0 electrical degree between primary and secondary voltage at rated load, m
11、aximum. Temperature rise: 45C, maximum. Vibration: MIL-STD-202, method 204, test condition D. Marking location: See figure 1. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27/47C 3 VERIFICATION Extent of qualification Qualification testing
12、and approval to M27/37-44 A or B, M27/42-44 A or B, and M27/46-44 A or B shall be sufficient to grant qualification approval to MIL-PRF-27/37 through MIL-PRF-27/47 inclusive, all parts. Qualification testing and approval to M27/47-44 shall be sufficient to grant qualification approval to M27/47-01 t
13、hrough M27/47-44. Part or Identifying Number (PIN), example: M 27/47-01 A or B MIL specification Specification Dash Configuration A Configuration B item sheet no. no. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27/47C 4 TABLE I. Electrica
14、l ratings. Dash No. Type designation Secondary voltage (3-5) (V rms) 3% Secondary current (3-5) (amps rms) Working voltage (V rms) (MAX) 01 A or B 02 A or B 03 A or B 04 A or B 05 A or B 06 A or B 07 A or B 08 A or B 09 A or B 10 A or B 11 A or B 12 A or B 13 A or B 14 A or B 15 A or B 16 A or B 17
15、A or B 18 A or B 19 A or B 20 A or B 21 A or B 22 A or B 23 A or B 24 A or B 25 A or B 26 A or B 27 A or B 28 A or B 29 A or B 30 A or B 31 A or B 32 A or B 33 A or B 34 A or B 35 A or B 36 A or B 37 A or B 38 A or B 39 A or B 40 A or B 41 A or B 42 A or B 43 A or B 44 A or B 840 841 842 843 844 845
16、 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 6 6.3 7 7.5 8 9 10 11 12 12.6 13 15 16 18 20 22 24 26 28 30 33 36 39 43 47 51 56 62 68 75 82 91 100 110 115 120 130 150 180 200 220 240 270 300 4.1
17、67 3.968 3.571 3.333 3.125 2.778 2.500 2.273 2.083 1.984 1.923 1.667 1.563 1.389 1.250 1.136 1.042 0.962 0.893 0.833 0.758 0.694 0.641 0.581 0.532 0.490 0.446 0.403 0.367 0.333 0.305 0.275 0.250 0.227 0.218 0.208 0.192 0.166 0.139 0.125 0.113 0.104 0.093 0.083 325 325 325 325 325 325 325 325 325 325
18、 325 325 325 325 325 325 325 325 325 325 325 325 325 325 325 325 325 325 325 325 325 325 325 325 325 325 325 325 325 440 440 440 580 580 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27/47C 5 Changes from previous issue. The margins of this
19、 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 requirement
20、s 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-PRF-27/37 MIL-PRF-27/38 MIL-PRF-27/39 MIL-PRF-27/40 MIL-PRF-27/41 MIL-PRF-27
21、/42 MIL-PRF-27/43 MIL-PRF-27/44 MIL-PRF-27/45 MIL-PRF-27/46 MIL-STD-202 Custodians: Preparing activity: Army - CR DLA - CC Navy - EC Air Force - 85 (Project 5950-2009-042) DLA - CC Review activities: Army - CR4, MI Navy - AS, MC, OS Air Force - 19, 99 NOTE: The activities listed above were intereste
22、d 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-,-,-
