1、AMSC N/A FSC 5950 MIL-PRF-27/67C 28 April 2008SUPERSEDING MIL-PRF-27/67B 2 June 2003 PERFORMANCE SPECIFICATION SHEET TRANSFORMERS, AUDIO FREQUENCY This specification is approved for use by all Depart- ments and Agencies of the Department of Defense. The requirements for acquiring the product describ
2、ed herein shall consist of this specification and MIL-PRF-27. FIGURE 1. Dimensions and configuration. INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27/67C 2 Inches mm Inches mm .005 .020 .030 .031 .052 .062 .112 .125 0.13 0.51 0.
3、76 0.79 1.32 1.57 2.84 3.18 .156 .187 .200 .500 .800 1.000 1.085 1.125 3.96 4.75 5.08 12.70 20.32 25.40 27.56 28.58 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. 3. Unless otherwise specified, tolerance is .010 (0.25 mm). 4. Marking shall be on sid
4、es and/or top of case. 5. Electrical values shall be marked as specified in table I, as applicable. FIGURE 1. Dimensions and configuration Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27/67C 3 REQUIREMENTS: (When numbers in pare
5、ntheses, i.e., (1.-3) are used, they indicate the winding and the extreme terminals of the winding.) Electrical ratings: See table I. Frequency range: 60 hertz to 10 kilohertz. Power level: 500 milliwatts maximum at 60 hertz. TABLE I. Electrical ratings. 1/ Dash number Circuit diagram (see figure 1)
6、 Primary impedance ohms (1-3) Secondary impedance ohms (5-7) Primary DCR ohms 25% (1-3) Secondary DCR ohms 25% (5-7) Primary unbalanced DC current max (mA) Working voltage 01 02 03 04 05 06 07 08 09 10 11 A A B B A B A A B B A 10,000 CT 10,000 CT 10,000 CT 1,500 CT 1,000 CT 1,000 CT 600 CT 600 CT 60
7、0 CT 600 CT 250 CT 10,000 CT 600 CT 4 15 600 CT 4 600 CT 60 CT 15 4 600 CT 700 700 700 93 65 65 37 37 37 37 16 900 50 0.37 1.2 50 0.37 50 5 1.2 0.37 50 1.0 1.0 1.0 2.5 3.0 3.0 4.0 4.0 4.0 4.0 7.0 355 355 355 175 175 175 175 175 175 175 175 1/ Qualification testing and approval to M27/67-01 shall be
8、sufficient to grant qualification approval to M27/67-02 through M27/67-11, inclusive. Qualification by similarity can be obtained for MIL-PRF-27/68, /69, /70, /71, and /72 by the submission of two samples each, (of dash number 01 for MIL-PRF-27/68, /69, /70, /71, and /72) which shall be subjected to
9、 group A, subgroup II tests, with zero defects allowed. Design and construction: Dimensions and configuration: See figure 1. Duty cycle: Continuous. Case: Encapsulated. Material: Plastic. Terminals: Pin (printed circuit). Material: Nickel iron alloy, tin plated. Diameter: 0.30 .005 inch Length: .500
10、 .030 inch. Weight: 73.71 grams. Altitude: 70,000 feet, maximum. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27/67C 4 Operating temperature range: -55C to +130C. Terminal strength: MIL-STD-202, method 211, test condition A, 2 pounds. Diel
11、ectric withstanding voltage: At sea level: 1,000 volts rms (except 500 volts rm on M27/67-04 through M27/67-11). At barometric pressure: 444 volts rms (except 300 volts rms on M27/67-04 through M27/67-11). Electrical characteristics: See table II. Frequency response. Reference frequency: 1 kilohertz
12、. Polarity: Additive, with terminals 3 and 5 connected. TABLE II. Electrical characteristics. Frequency response at 60 Hz to 10 kHz 1 dB Dash number Zs(1-3) ohms ZL (5-7) ohms EL volts Primary dc current (1-3) mA 01 02 03 04 05 06 07 08 09 10 11 10 k 10 k 10 k 1.5 k 1.0 k 1.0 k 600 600 600 600 250 1
13、0 k 600 4 15 600 4 600 60 15 4 600 16.0 16.0 16.0 6.0 5.0 5.0 4.0 4.0 4.0 4.0 4.0 0.5 0.5 0.5 1.25 1.5 1.5 2.0 2.0 2.0 2.0 3.5 Marking location: See figure 1. Part or Identifying Number (PIN): M27/67- (dash number from table I). Provided by IHSNot for ResaleNo reproduction or networking permitted wi
14、thout license from IHS-,-,-MIL-PRF-27/67C 5 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 done as a convenience only and the Government assumes no liability whatsoever for any inaccu
15、racies 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 previous issue. Referenced documents. In addition to MIL-PRF-27, this document references the
16、 following: MIL-STD-202 MIL-PRF-27/68 MIL-PRF-27/69 MIL-PRF-27/70 MIL-PRF-27/71 MIL-PRF-27/72 Custodians: Preparing activity: Army CR DLA CC Navy EC Air Force 11 (Project 5950-2008-009) DLA -CC Review activities: Army AR, CR4, MI Navy AS, MC, OS, SH Air Force 19, 99 NOTE: The activities listed above
17、 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-,-,-
