1、 AMSC N/A FSC 5950 INCH-POUND MIL-T-27/176B 4 May 2012 SUPERSEDING MIL-T-27/176A 13 March 1991 MILITARY SPECIFICATION SHEET TRANSFORMER, AUDIO FREQUENCY This specification is approved for use by all Depart- ments and Agencies of the Department of Defense. The complete requirements for procuring the
2、transformer described herein shall consist of this document and the latest issue of specification MIL-PRF-27. FIGURE 1. Dimensions and configurations. Inactive for new design after 13 March 1991. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-
3、27/176B 2 Inches mm .010 0.25 .03 0.8 .25 6.4 .300 7.62 .450 11.43.550 13.97.600 15.24.900 22.86NOTES: 1. Dimensions are in millimeters. 2. Metric equivalents are given for general information only. 3. Marking shall be on the side of the case. FIGURE 1. Dimensions and configurations - continued. Pro
4、vided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-27/176B 3 REQUIREMENTS: (When numbers in parentheses, i.e., (1-2) are used, they indicate the winding and the extreme terminals of the winding.) Electrical ratings. Source impedance (1-2): 35 ohms, 1
5、0 kilohertz. Load impedance (3-5): 143 ohms ct. Primary power level: 0.74 watt. DC resistance: (1-2): 1.15 ohms 30 percent. (3-4): 1.60 ohms 30 percent. (4-5): 1.80 ohms 30 percent. Working voltage: 100 volts maximum. Design and construction: Dimensions and configurations: See figure 1. Material: Ep
6、oxy. Weight: 13.61 grams maximum. Duty cycle: Continuous. Terminals: Pin type. Terminal height: .25 .03 inch. Operating temperature range: -55C to +105C. Terminal strength: MIL-STD-202, method 211, test condition A, 2 pounds. Dielectric withstanding voltage: MIL-STD-202, method 301, test voltage 500
7、 volts rms Electrical characteristics: Primary impedance (1-2): 35 ohms, 10 kilohertz. Secondary load impedance (3-5): 143 ohms ct. No load (center-tap voltage unbalance): With 4 volts, 10 kilohertz, 0 ampere dc applied to (1-2). Unbalance (3-4): 2 percent. Unbalance (4-5): 2 percent. Current in (1-
8、2): 3.5 milliamperes maximum. Power in (1-2): 0.014 watt maximum. Voltage across (3-4): 4 volts 1 percent. Voltage across (4-5): 4 volts 1 percent. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-27/176B 4 Rated load: With 35 ohms, 10 kilohertz
9、 across (1-2). Current in (3-5): 70 milliamperes. Voltage across (3-5): 10 volts ct. Polarity: Additive with terminals 2 and 3 connected. Vibration, low frequency: MIL-STD-202, method 201. Shock (specified pulse): MIL-STD-202, method 213, test condition I. VERIFICATION: Qualification inspection: Not
10、 applicable. Conformance inspection: Groups A and B tests of MIL-PRF-27 shall be applicable. Marking location: See figure 1. Part or Identifying Number (PIN): M27/176-01. Changes from previous issue. The margins of this specification are marked with vertical lines to indicate where changes from the
11、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 this document based on the entire content irrespective of the marginal notat
12、ions 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 (Project 5950-2009-078) DLA CC Review Activities: Army AR, CR4, MI Navy A
13、S, 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.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
