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