1、AMSC N/A FSC 5950 MIL-T-27/170C 8 June 2012 SUPERSEDING MIL-T-27/170B 13 March 1991 MILITARY SPECIFICATION SHEET TRANSFORMERS, AUDIO FREQUENCY This specification is approved for use by all Depart- ments and Agencies of the Department of Defense. The complete requirements for acquiring the products d
2、escribed herein shall consist of this document and the latest issue of specification MIL-PRF-27. INCH-POUND Inactive for new design after 13 March 1991. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-27/170C 2 NOTES: 1. Dimensions are in inche
3、s. 2. Metric equivalents are given for general information only. 3. Unless otherwise specified, tolerance is .010 (0.25 mm). 4. Marking shall be on the top of the case. 5. Terminal identification marking shall be on the sides of the case. FIGURE 1. Dimensions and configurations Continued. INCHES MM
4、005 .032 .040 .062 .140 .156 .375 .438 .875 1.156 0.13 0.81 1.02 1.57 3.56 3.96 9.52 11.13 22.22 29.36 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-27/170C 3 REQUIREMENTS: (When numbers in parentheses, i.e. (1-2) are used, they indicate the
5、 winding and the extreme terminals of the winding.) Electrical ratings: Power level: 1 milliwatt. Working voltage: 175 volts maximum. Primary current: 4 milliamps, dc. Primary impedance (1-2): 600 ohms. Secondary load impedance (3-5): 1,200 ohms center tap. DC resistance: (1-2): 47 ohms 25 percent.
6、3-5): 93 ohms 25 percent. Design and construction: Dimensions and configurations: See figure 1. Duty cycle: Continuous. Case: Epoxy. Altitude: 15,000 feet, maximum. Terminals: Pin (printed circuit). Material: Nickel iron alloy tin dipped. Diameter: 0.040 0.005. Length: 1.56 0.032. Weight: 1.750 oun
7、ces, maximum. Operating temperature range: -55C to +105C Terminal strength: MIL-STD-202, method 211, test condition A, 2 pounds. Resistance to soldering heat: MIL-STD-202, method 210, temperature 271C 5C (520F 9F), and immersion 15 seconds duration minimum. Vibration (high frequency): MIL-STD-202, m
8、ethod 204, test condition D. Shock (specified pulse): MIL-SDT-202, method 213, test condition I, except 11 milliseconds duration and half sine waveform. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-27/170C 4 Dielectric withstanding voltage:
9、At sea level: 500 V rms. At barometric pressure: 300 V rms. Electrical characteristics: Primary impedance: 600 ohms 10 percent with 1 volt, 1 kilohertz and 4 milliamperes, dc applied to (1-2) and 1,200 ohms across (3-5). Frequency response: ZS= 600 ohms (1-2). ZL= 1,200 ohms (3-5). ES= 12 volts. Ref
10、erence frequency = 1 kilohertz. Frequency range: 300 to 3,400 hertz 1 dB. Polarity: Additive with terminals 2 and 3 connected. VERIFICATION: Qualification inspection: Not applicable. Conformance inspection: Groups A and B tests of MIL-PRF-27 shall be applicable. Marking location: See figure 1. Part
11、or Identification Number (PIN): M27/170-01. 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
12、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
13、 following: MIL-STD-202 Custodians: Preparing activity: Army CR DLA CC Navy EC Air Force 85 (Project 5950-2009-083) 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 https:/assist.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
