1、AMSC N/A FSC 5950 INCH-POUND MIL-PRF-27/287B 18 July 2008 SUPERSEDING MIL-PRF-27/287A 17 May 1990 PERFORMANCE SPECIFICATION SHEET TRANSFORMERS AND INDUCTORS (AUDIO, POWER AND HIGH-POWER PULSE) INDUCTORS, POWER This specification is approved for use by all Depart- ments and Agencies of the Department
2、 of Defense. The complete requirements for procuring the transformer described herein shall consist of this document and the latest issue of specification MIL-PRF-27. FIGURE 1. Dimensions and configurations. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IH
3、S-,-,-MIL-PRF-27/287B 2 INCHES MM INCHES MM .005 .010 .015 .030 .063 .073 .082 .156 0.13 0.25 0.38 0.76 1.60 1.85 2.08 3.96 .200 .250 .281 .400 .438 .563 .875 5.08 6.35 7.14 10.16 11.13 14.30 22.22 WV 357V (SEE TABLE I FOR VALUES OF “X”) CIRCUIT DISGRAM AND MARKING NOTES: 1. Dimensions are in inches
4、. 2. Metric equivalents are given for general information only. 3. Marking shall be on the side and on top. 4. Electrical values shall be marked as specified in table I, as applicable. 5. Circuit diagram BB, for series connection join terminals 2 and 3 for parallel connection join terminals 1 and 2,
5、 3 and 4. FIGURE 1. Dimensions and configurations Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27/287B 3 REQUIREMENTS: Electrical ratings: See table I. TABLE I. Electrical ratings. Dash no. 1/ Inductance (h) +15 percent -5 perce
6、nt 2/ 3/ DC current (A) max 2/ 4/ DC resistance (ohms) max 2/ Working voltage (peak) volts 5/ PIN arrangement (see figure 1)Circuit Diagram (see figure 1) Voltage 01 1250 1.2 .7 357 A AA 1 volt at 10 kHz 02 800 1.5 .45 357 A AA 1 volt at 10 kHz 03 500 1.8 .3 357 A AA 1 volt at 10 kHz 04 350 2.2 .2 3
7、57 A AA 1 volt at 10 kHz 05 200 50 3 6 .12 .03 357 B BB 1 volt at 10 kHz 06 88 22 4.5 9 .052 .013 357 B BB 1 volt at 10 kHz 07 32 8 7.5 15 .02 .005 357 B BB 1 volt at 10 kHz 1/ Qualification test and approval to M27/287-01, shall be sufficient to grant qualification approval to M27/287-02 through -0
8、7. 2/ Where electrical values are written one above the other they indicate the values from series or parallel connections respectively parallelseries)(. 3/ The inductance is measured with 0 A dc applied at the specified voltage and frequency. 4/ At rated dc current, inductance will exceed 80 of rat
9、ed inductance. 5/ Between windings, 50 volts peak. Design and construction: Dimensions and configuration: See figure 1. Duty cycle: Continuous. Case: Epoxy. Terminals: Printed circuit (tinned brass). Weight: 0.758 ounce (21.48 grams). Altitude: 75,000 feet. Operating temperature range: -55C to +130C
10、. Terminal strength: MIL-STD-202, method 211, test condition A, 2 pounds. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-27/287B 4 Dielectric withstanding voltage: At sea level: 1,000 Vrms. At reduce barometric pressure: 500 Vrms. Vibration
11、(high frequency): MIL-STD-202, method 204. Thermal shock: MIL-STD-202, method 107, test condition A. Temperature rise: +45C with 1 volt rms, 10 kHz, current as specified in table I at an ambient temperature of +85C maximum. Marking location: See figure 1. Part or Identification Number (PIN): M27/287
12、-(dash number from table I). 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
13、 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. MIL-PRF-27 MIL-STD-202 Custodians: Preparing activity: Army - CR DLA -
14、 CC Navy - EC Air Force - 85 (Project 5950-2008-033) DLA - CC Review activities: Army - AR, 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 the 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-,-,-
