1、AMSC N/A FSC 5950 MIL-PRF-27/173F 18 July 2008 SUPERSEDING MIL-PRF-27/173E 7 April 1992 MILITARY SPECIFICATION SHEET TRANSFORMERS, AUDIO FREQUENCY, MICRO-MINIATURE This specification is approved for use by all Depart- ments and Agencies of the Department of Defense. The requirements for acquiring th
2、e products described herein shall consist of this specification and MIL-PRF-27. WORKING VOLTAGE (PEAK): 50 V ALTITUDE: 150,000 FT MAX FREQUENCY RANGE: 300 Hz 250 kHz CIRCUIT DIAGRAM AND MARKING NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. 3. Marki
3、ng shall be on the top and bottom of the case. 4. Electrical values shall be marked as specified in table I as applicable. 5. Terminal spacing is on center. FIGURE 1. Dimensions and configurations. INCH-POUND INCHES MM .002 .006 .010 .015 .016 .020 .040 .050 .064 .260 .375 1.250 0.05 0.15 0.25 0.38
4、0.41 0.51 1.02 1.27 1.63 6.60 9.53 31.75 Inactive for new design after 21 February 2003 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27/173F 2 REQUIREMENTS: (When numbers in parentheses, i.e., (1-5) are used, they indicate the winding and
5、the extreme terminals of the winding. When the extreme terminals of two windings are used, i.e., (6-10), the windings are connected in series, i.e., terminals 7 and 9 are connected. Electrical ratings: See table I. Working voltage (peak): 50 V. Frequency range: 300 Hz to 250 kHz. Primary dc current
6、1-5): 0 ampere. TABLE I. Electrical ratings. 1/ Dash Number Primary Impedance (1-5) Secondary Impedance (6-10) 2/ Primary dc resistance (1-5) Primary power level at 1 kHz (max) Secondary dc resistance (6-10) Ohms ct Ohms Ohms 25% mW Ohms 25% 01 25 k 1000/250 Split 2400 40 78 02 1500 600/150 Split 1
7、50 75 65 03 150 12/3 16 80 1.85 04 300 600/150 30 80 65 05 400 400/100 45 80 45 06 500 50/12.5 58 80 5.5 07 600 600/150 65 80 65 08 1000 1000/250 110 80 100 09 2000 8000/2000 177 75 745 10 10 k 500/125 900 75 56 11 10 k 1200/300 900 75 100 12 10 k 2000/500 900 75 160 13 10 k 10k/2500 900 75 750 1/ C
8、omplete qualification testing and approval to M27/173-01 shall be sufficient to grant qualification approval to M27/173-02 through -13. 2/ By paralleling the secondary windings, one-fourth of the specified impedance is available. Design and construction: Dimensions and configurations: See figure 1.
9、Duty cycle: Continuous. Terminals: Type LR (-)E-32-C1, per MIL-STD-1276. Weight: 1.50 grams, maximum. Altitude: 150,000 feet, maximum. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27/173F 3 Operating temperature range: -55C to +105C Termin
10、al strength: MIL-STD-202, method 211, test condition B, 5 bends. Vibration (high frequency): MIL-STD-202, method 204, test condition D. Solderability: MIL-STD-202, method 208. Dielectric withstanding voltage: At sea level: 200 V rms. At barometric pressure: 125 V rms. Electrical characteristics: See
11、 table II. Harmonic distortion: Total harmonic content of the output shall be a maximum of 5 percent at the specified power level and 1 kHz (see table I). Frequency response: See table II, all impedances are loaded to 1 mW. Reference frequency: 1 kHz. Insertion loss: Insertion loss shall be a maximu
12、m of 4.0 dB at the specified power level (see table I). Polarity: Additive, with (5-6) and (7-9) connected. Marking location: See figure 1. Part or Identifying Number (PIN): M27/173-(dash number from table I). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
13、IHS-,-,-MIL-PRF-27/173F 4 TABLE II. Electrical characteristics. Frequency response at 300 Hz to 250 kHz, 2 dB ZS(1-5) ZL(6-10) Dash number Ohms Ohms 01 25 k 1000 02 1.5 k 600 03 150 12 04 300 600 05 400 400 06 500 50 07 600 600 08 1000 1000 09 2 k 8 k 10 10 k 500 11 10 k 1.2 k 12 10 k 2 k 13 10 k 10
14、 k SUPERSESSION DATA: MIL-PRF-27/173 supersedes MS21398(USAF) which was inactive for design after 21 March 1977. The transformer, M27/173-02, covered by this specification sheet supersedes PIN MS21398-1. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-
15、MIL-PRF-27/173F 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 inaccuracies in these notation
16、s. 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 following: MIL-STD-202
17、MIL-STD-1276 Custodians: Preparing activity: Army CR DLA CC Navy EC Air Force 85 (Project 5950-2008-021) DLA - CC 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 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-,-,-
