1、AMSC N/A FSC 5950 MIL-PRF-27/72C 28 April 2008 SUPERSEDING MIL-PRF-27/72B 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 products descr
2、ibed 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-27/72C 2 Inches mm Inches mm .005 .020 .030 .062 .100 .125 .202 0.13 0.51 0.76
3、1.57 2.54 3.18 5.13 .262 .300 .340 .415 .433 .500 6.65 7.62 8.64 10.54 11.00 12.70 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. 3. Unless otherwise specified, tolerance is .005 (0.13 mm). 4. Marking shall be on sides and/or top of case. 5. Beveled
4、 corner shall be 45 and identifies pin no. 1. 6. 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-27/72C 3 REQUIREMENTS
5、: (When numbers in parentheses, i.e. (1.-3) are used, they indicate the winding and the extreme terminals of the winding.) Electrical ratings: See table I. Working voltage: 175 volts. Frequency range: 300 hertz to 100 kilohertz (except 300 hertz to 40 kilohertz for M27/72-01). TABLE I. Electrical ra
6、tings. 1/ Dash number Primary impedance ohms (1-3) Secondary impedance ohms (4-6) Primary DCR ohms 25% Primary power level at 300 Hz mW (max) Secondary DCR ohms 25% Primary unbalanced dc current max (mA) 01 02 03 04 05 06 07 08 09 100 k CT 25 k CT 25 k CT 10 k CT 10 k CT 10 k CT 1,000 CT 600 CT 600
7、CT 1,000 CT 1,000 CT 600 CT 10 k CT 1,500 CT 600 CT 600 CT 600 CT 60 6,800 4,300 4,300 1,350 1,350 1,350 140 90 90 10 50 50 50 50 50 50 50 50 110 140 90 1,350 170 90 90 90 10 0.2 1.2 1.25 1.0 1.0 1.0 6.25 8.0 8.0 1/ Qualification testing and approval to M27/72-01 and all tests in accordance with tab
8、le VII of MIL-PRF-27 for M27/72-02 shall be sufficient to grant qualification approval to M27/72-01 through M27/72-09, inclusive. Qualification by similarity can be obtained for MIL-PRF-27/67, /68, /69, /70, and /71 by the submission of two samples each, (of dash number 01 for MIL-PRF-27/67, /68, /6
9、9, /70, and /71) which shall be subject to 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, tin plated. Diamet
10、er: .020 .005 inch. Length: .500 .125 inch. Weight: 3.97 grams maximum. Altitude: 70,000 feet, maximum. Operating temperature range: -55C to +130C. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27/72C 4 Terminal strength: MIL-STD-202, metho
11、d 211, test condition A, 2 pounds. Dielectric withstanding voltage: At sea level: 500 volts rms. At barometric pressure: 300 volts rms. Electrical characteristics: See table II. Frequency response. Reference: 1 kilohertz. TABLE II. Electrical characteristics. Frequency response at 200 Hz to 20 kHz 1
12、 dB Dash number Zs(1-3) ohms ZL (4-6) ohms EL volts Primary dc current (1-3) mA 01 1/ 02 03 04 05 06 07 08 09 100 k 25 k 25 k 10 k 10 k 10 k 1 k 600 600 1 k 1 k 600 10 k 1,500 600 600 600 60 10 5.0 5.0 2.0 2.0 2.0 1.0 0.6 0.6 0.1 0.6 0.63 0.5 0.5 0.5 3.12 4.0 4.0 1/ Frequency response is 300 hertz t
13、o 40 kilohertz 2 dB. Marking location: See figure 1. Part or Identifying Number (PIN): M27/72- (dash number from table I). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27/72C 5 Changes from previous issue. The margins of this specification
14、 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 evaluate the requirements of this docu
15、ment 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 MIL-PRF-27/67 MIL-PRF-27/68 MIL-PRF-27/69 MIL-PRF-27/70 MIL-PRF-27/71 Custodians:
16、Preparing activity: Army CR DLA CC Navy EC Air Force 11 (Project 5950-2008-014) 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-,-,-
