DLA MIL-PRF-27 1 F-2012 TRANSFORMERS AUDIO FREQUENCY.pdf

1、AMSC N/A FSC 5950 MIL-PRF-27/1F 13 July 2012 SUPERSEDING MIL-PRF-27/1E 23 July 1990 PERFORMANCE SPECIFICATION SHEET TRANSFORMERS, AUDIO FREQUENCY This specification is approved for use by all Departments and agencies of the Department of Defense. The complete requirements for procuring the product d

2、escribed herein shall consist of this document and the latest issue of specification MIL-PRF-27. NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. FIGURE 1. Dimensions and configurations. INCH - POUNDInches mm .003 0.08 .005 0.13 .010 0.25 .020 0.51 .0

3、25 0.64 .041 1.04 .156 3.98 .490 12.45 .680 17.27 .796 20.22 1.200 30.48 1.332 33.83 1.400 35.56 1.593 40.46 1.695 43.05 Part number M27/1-01 is inactive for new design after 4 April 1985. For new design use M27/1-02. Provided by IHSNot for ResaleNo reproduction or networking permitted without licen

4、se from IHS-,-,-MIL-PRF-27/1F 2 REQUIREMENTS: (When numbers in parentheses, i.e., (1-3) are used, they indicate the winding and the extreme terminals of the winding.) Electrical rating: Primary power level: 2 W at 1 kHz. Working voltage (peak): 125 volts. Design, configuration, and physical dimensio

5、ns: See figure 1. Material: Metal encased, steel. Weight: 4 ounces, maximum. Duty cycle: Continuous. Terminal: Solder lug, number 18 AWG, standoff type. Temperature range: See table I. Terminal strength: Method 211 of MIL-STD-202, test condition A, 5 pounds. Dielectric withstanding voltage: Method 3

6、01 of MIL-STD-202, test voltage, 500 V rms. Electrical characteristics: Harmonic distortion: Not more than 1 percent at 2 W 1 dB at 1 kHz. Primary impedance: 4,000 400 ohms (1-3), tapped at 250 25 ohms (2-3). Secondary load impedance: 8 1 ohms (4-5). DC resistance (DCR): Primary DCR: 157 ohms 25 per

7、cent. Secondary DCR: 0.56 ohm 25 percent. Frequency response: Range: 250 Hz to 5,000 Hz at rated power, flat within 2 dB; reference frequency 1 kHz; Test voltage 88.5 V rms (1-3). Insertion loss: 0.5 dB maximum, with 2 W input at 1 kHz. Polarity: Additive, with terminals 3 and 4 connected. Temperatu

8、re rise: See table I. Vibration, high frequency: Method 204 of MIL-STD-202, test condition B. Shock (specified pulse): Method 213 of MIL-STD-202. test condition H. Part or identifying number (PIN): M27/1-(dash number from table I). Provided by IHSNot for ResaleNo reproduction or networking permitted

9、 without license from IHS-,-,-MIL-PRF-27/1F 3 TABLE I. Temperature characteristics. Dash Number Temperature range Maximum operating temperature With rated power at 300 Hz Temperature rise Ambient temperature -01 -02 -55C to +105C -55C to +130C 40C maximum 40C maximum 65C 90C Changes from previous is

10、sue. 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

11、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 DL

12、A CC Navy EC Air Force 85 DLA CC (Project 5950-2009-092) 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 https:/assist.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-