INCH-POUND 8 pril 8 SUPERSEDING MIL-PRF-7/71D 1 February PERFORMNCE SPECIFICTION TRNSFORMERS, UDIO FREQUENCY This specification is approved for use by all Departments and agencies of the Department of Defense. The requirements for acquiring the product described herein shall consist of this specification and MIL-PRF-7. FIGURE 1. Dimensions and configuration. MSC N/ FSC 595
Inches mm Inches mm.5.1.15.81..76. 7.6.1.79. 11.68.6 7.95 7.15.18.5 1.7 Working voltage: 175 V ltitude : 7, ft maximum (See table I for value of X ) CIRCUIT DIGRMS ND MRKING NOTES: 1. Dimensions are in inches.. Metric equivalents are given for general information only.. Unless otherwise specified, tolerance is ±. (.5 mm).. Part marking shall be on sides or top of case. 5. Electrical values shall be marked as specified in table I, as applicable. FIGURE 1. Dimensions and configurations - Continued.
REQUIREMENTS: (When numbers in parentheses, i.e., (1-) are used, they indicate the winding and the extreme terminals of the windings.) Electrical ratings: See table I. Working voltage: 175 volts. Frequency range: hertz to kilohertz (except hertz to kilohertz for M7/71-1 and M7/71-). TLE I. Electrical ratings. Dash number Circuit diagram (see figure 1) impedance (1-) Secondary impedance (-6) DCR ±5% power level t Hz mw (Max) Secondary DCR ±5% unbalanced DC current m (Max) 1 5 6 7 8 9 11 1 k CT 5 k CT k CT k CT k CT, CT 1 k CT k CT 1,5 CT k CT 5 k CT,9,5 1 1, 1 1,.5, 7.5 1. 1. 1....... 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:. ±.5 inch. Length:.5 ±. inch. Weight: 5. grams, maximum. ltitude: 7, feet maximum. Operating temperature range: -55 C to +1 C.
Terminal strength: MIL-STD-, method 11, test condition, pounds. Dielectric withstanding voltage: t sea level: 5 volts, rms. t barometric pressure: volts, rms. Electrical characteristics: See table II. Frequency response: Reference frequency: 1 kilohertz. Polarity: dditive, with terminals and connected. TLE II. Electrical characteristics. Dash number Z S (1-) Frequency response at Hz to KHz ± d Z L (-6) E L Volts DC current (1-) m 1 1/ 1/ 5 6 7 8 9 11 1 k 5 k k k k, k 1,5 k 5 k 17 5.5.5.5.5.5.5.5.5 1/ Frequency response is hertz to kilohertz ± d. VERIFICTION: Qualification inspection: Not applicable. Quality conformance inspection: Groups and tests of MIL-PRF-7 shall be applicable. Marking location: See figure 1. Part or Identifying Number (PIN): M7/71-(dash number from table I). Substitution data (information only): This military transformer is substitutable for CGE 767, PIN -6. This in no way implies that the manufacturer s part is substitutable for the military item. This information is not intended to be complete.
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 notations. idders 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-7, this document references the following: MIL-STD- Custodians: Preparing activity: rmy - CR DL - CC Navy - EC ir Force - 11 (Project 595-8-1) DL - CC Review activities: rmy - R, CR, MI Navy - S, MC, OS, SH ir 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 SSIST Online database at http://assist.daps.dla.mil. 5