1、AMSC N/A FSC 5950 INCH-POUND MIL-PRF-27/30C 23 September 2009 SUPERSEDING MIL-PRF-27/30B 5 April 1990 PERFORMANCE SPECIFICATION SHEET TRANSFORMER, AUDIO FREQUENCY This specification is approved for use by all Depart- ments and Agencies of the Department of Defense. The requirements for acquiring the
2、 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. Marking shall be on the side of the case. FIGURE 1. Dimensions and configurations. Inches mm .031 .060 .125 .13
3、8 .200 .218 .250 .312 1.125 1.187 1.625 2.375 0.79 1.52 3.18 3.51 5.08 5.54 6.35 7.92 28.53 30.15 41.28 60.33 123 4 56789101112.2181.187 .0601.187 .0601.625 +.000 -.125 .250 DIA. .031 13 TERM. .138 -32 NC-2B4 INSERTS.200 DEEP MIN.218 1.625+.000-.1251.125 DIA. TERM CIRCLE 12 TERM EQUALLY SPACED 1 TER
4、M CENTERED2.375 +.000-.125.312 .0312 1 3 4 5 6 7891011121370 to 725 OHMS 175 W V 50to600 OHMS175 W VCIRCUIT DIAGRAM AND MARKING Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27/30C 2 REQUIREMENTS: (When numbers in parentheses, such as, (1-2
5、) are used, they indicate the winding and the extreme terminals of the winding.) Electrical ratings: Source impedance: 70 to 725. Load impedance: 50 to 600. Primary power level: +7 dB maximum (6.0 mW reference level). Working voltage: 175 V. Design and construction: Dimensions and configuration: See
6、 figure 1. Duty cycle. Continuous. Case: Material: Metal. Terminals: Solder, turret type. Weight: 10.6 ounces, maximum. Altitude: Operating: 10,000 feet, maximum. Nonoperating: 25,000 feet, maximum. Operating temperature range: -55C to +105C. Maximum operating temperature: +105C (ambient plus temper
7、ature rise). Temperature rise: 20C. Terminal strength: MIL-STD-202, method 211, test condition A, 5 pounds. Dielectric withstanding voltage: MIL-STD-202, method 301, test voltage, 500 V rms. Insulation resistance: MIL-STD-202, method 302, test voltage, 500 volts dc. Electrical characteristics: Prima
8、ry (terminals 1, 2, 3, 4, 5, and 6): Impedance: See table I. Direct current: Zero. Inductance: 12 H minimum, 5 V, 60 Hz (terminals 1-6, connect 3 to 4). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27/30C 3 Secondary (terminals 7, 8, 9, 10
9、 11, and 12): Impedance: See table II. Direct current: Zero. Frequency response: 2 dB: 10 Hz to 20 kHz. 6 dB: 50 kHz. Polarity: Terminals 1 and 12 shall be the same polarity. Marking location: See figure 1. Part or Identification Number (PIN): M27/30-01. TABLE I. Primary impedance at 2000 Hz. Prima
10、ry impedance Connect to terminal Join to terminal Ohms 5% 70 165 or 180 280 or 325 425 625 or 725 2 and 4 1 and 4 2 and 5 1 and 5 1 and 6 2 to 3 and 4 to 5 1 to 3 and 4 to 6 3 to 4 3 to 4 3 to 4 TABLE II. Secondary impedance. Primary impedance Connect to terminal Join to terminal Ohms 50 125 or 150
11、200 or 250 333 500 or 600 8 and 10 7 and 10 8 and 11 7 and 11 7 and 12 8 to 9 and 10 to 11 7 to 9 and 10 to 12 9 to 10 9 to 10 9 to 10 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 d
12、one 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 pr
13、evious issue. Referenced documents. In addition to MIL-PRF-27, this document references the following: MIL-STD-202 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27/30C 4 Custodians: Preparing activity: Army - CR DLA - CC Navy - EC Air force
14、 85 (Project 5950-2009-027) DLA-CC Review activities: Army AR, CR4, MI 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 this 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-,-,-
