INCH-POUND September 00 SUPERSEDING MIL-PRF-7/7B 1 June 88 PERFORMNCE SPECIFICTION SHEET TRNSFORMERS, UDIO FREQUENCY, ULTR-MINITURE This specification is approved for use by all Departments and gencies of the Department of Defense. The requirements for acquiring the product described herein shall consist of this specification and MIL-PRF-7. Inches mm.010 0..00 0.1.18.. 6..0 8.89.00 0 0. NOTES: 1. Dimensions are in inches.. Metric equivalents are given for general information only.. Marking shall be on the side of the case.. and secondary electrical values, specified in table I, shall be marked as applicable.. Dots on circuit indicate polarity. FIGURE 1. Dimensions and. MSC N/ 1 of 7 FSC 90 DISTRIBUTION STTEMENT. pproved for public release; distribution is unlimited.
REQUIREMENTS: Electrical ratings: See table I. Working voltage (peak): 100 volts. Frequency range: 00 Hz to 7 khz. Design and construction: Dimensions and : See figure 1. Duty cycle: Continuous. Terminals: Solid wire. Composition: Copper clad steel. Diameter: 0.016 inch ±0.001 (0.1 ±0.0 mm). Length: 0 inch ±0. (. ±6. mm). Final finish: Tinned, 100 percent, electroplated in accordance with STM B. Weight: grams max. ltitude: 10,000 feet, maximum. Operating temperature range: - C to +10 C. Terminal strength: MIL-STD-0, method 11, test condition,.0 pounds. Thermal shock: cycles, method 107, MIL-STD-0, test condition -1. Vibration (high frequency): MIL-STD-0, method 0, test condition B. Dielectric withstanding voltage: t sea level: 00 V rms. t barometric pressure: 00 V rms. Electrical characteristics: No load (center tap ): ±1 percent at 1 volt, khz across the primary. Harmonic distortion: Total harmonic content of output shall be a maximum of percent at the specified power level (see table I). Insertion loss: t the specified power level (see table I), the insertion loss shall be a maximum of.0 db at 1 khz. Frequency response: ± db at the rated source and load s (see table 1) with mw level output and a reference frequency of 1 khz over a frequency range of 00 Hz to 7 khz.. Polarity: dditive when appropriate terminals are connected. For, connect terminals and, and 6. For B, connect terminals and (see figure 1, s and B).
TBLE I. Electrical ratings. 1/ Dash 001 00 00 00 00 006 007 008 009 010 011 01 01 01 01 016 0 018 0 00 01 0 0 0 0 06 07 08 09 00 01 0 0 0 0 0 ct 0 ct ct 8 ct 80 ct 10 ct 10 ct 10 ct 1 1 1 1 1 00 ct 00 ct 00 ct 00 ct 00 ct 00 ct 0 ct Impedance connec- tion 8 ct 0 ct ct ct 1.8 ct 60 ct 10 ct 1 ct 1 00 ct 1 ct 1 00 ct 1.8 ct 10 ct 00 ct 000 ct 1.8 ct 1 8 10 1. 8 10. 1 0 1. 7. 10 0 1. 7. 7 10. 10 0 0 100 0 00 1000. 1. 7. 0.0 0.0.0.0.0 10.0 7. dc..7.7 7.6 10.8 10.8 9. 9 11.6 11. 1 1 1 1 0 0 0 0 1 1 1 1 1 1 1 1 8 8 9 8 dc connec- tion 1..8. 7. 1. 7. 1. 11.8 18. 7 1. 18 60. 1 1. 7. 96 1 7 1.9 18..7 1.1 1..7 1.1 1.. 1.8...6...6 8. 1. 1.1. 9. 9...6 :secondary 1.8:1 :1 1.8:1 1.8:1.06:1 1..:1 :1 1.:1 1: :1.:1 1. 1. :1.16:1 1.8:1 1..8 1:. 1:.16 6.:1.6:1.16:1 1.8:1.16:1 :1 :1 :1.6:1 :1.16:1.16:1 :1 6..8:1 :1 8:1.6:1.:1 :1 :1.9:1.8:1 :1 1. 6.:1.6:1.8:1 :1 1.6:1.1.8 1.:1 11.:1 6.:1.6:1 See footnotes at end of table.
TBLE I. Electrical ratings Continued. 1/ Dash 06 07 08 09 00 01 0 0 0 0 06 07 08 09 00 01 0 0 0 0 06 07 08 09 060 061 06 06 06 06 6 700 ct 900 ct 1060 ct 1 1 1 1 1 000 ct 1.8 ct 0 ct 8 ct 00 ct 1.8 ct 1.8 ct 8 ct 1 ct 1.8 ct 1.8 ct 1 ct 1 1.8 ct 8 ct 1 10. 7. 1 0 10 00.. 1 00 10 1. 0.. 1 00 16..........0.0.0.0.....0.0.0.0.0......0 dc 8 8 8 7 66 69 7 7 7 79 10 10 10 108 11 11 11 111 16 16 16 16 10 10 dc 68 9. 1. 79 7 10 1 10 7 1.6 6. 11 16 1 1.6 68 9 6 1. 1. 1. 1.1. 0 6.. 6. 1. 9.. 1. 1.6... :secondary.1 :1.7:1.:1 :1 1. 7:1.6:1 7.9:1.08:1 1.:1 9..7:1 9. 9.68:1 1.:1 11.:1 :1 1.8:1 11.:1 1.8:1 :1 1.8:1 :1 8.9:1 7:1.6:1 :1 1. 1..9:1 1.8:1 8.16:1 :1.:1 18.:1 8.9:1 :1 18.:1.:1. :1.:1.6:1.:1 1.6:1 B / B / B / B / B / See footnotes at end of table
TBLE I. Electrical ratings Continued. 1/ Dash 066 067 068 069 070 071 07 07 07 07 076 077 078 079 080 081 08 08 08 08 086 087 088 089 090 091 09 09 09 09 000 ct 000 ct 000 ct 000 ct 000 ct 000 ct 000 ct 7 7 7 7 7 9000 ct 000 ct 000 ct 000 ct 000 ct 000 ct 7 1.8 ct 9000 ct 1.8 ct 00 ct 00 000 6 70 900 10 0 1 10 1. 10 6. 0. 0 1 10 0 00.0.0.0.....0.0.0.0.0.0 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. dc 8 8 8 0 0 0 0 0 0 0 0 90 70 70 70 70 796 108 108 89 89 80 80 80 80 dc 18 18 80 0 66 76 11 106 67 8 7 1 78 0 88 11 18 1100 1 7 67 7 11 18 1 76 8 9.7 9 1. 77. 9..7 6.7 18. 9 9. :secondary 1: 1.8:1.8:1 :1.1.16:1 1.:1 8.66:1.:1 :1 :1.8:1.8:1 8:1 :1 7:1.7:1.08:1.16:1.89:1 :1 :1 :1 :1 1.6:1.16:1 :1 6.:1 :1.:1.:1 7:1.6:1 0:1.66:1 6:1 0:1 0:1 1. 8.9:1 8.16:1 6.:1.77:1 B / B / B / B / B / B / See footnotes at end of table.
TBLE I. Electrical ratings - Continued. 1/ 6 Das h 096 097 098 099 100 101 10 10 10 10 106 107 108 109 110 111 11 11 11 1,000 ct 1,000 ct 1,000 ct 1,000 ct 1,000 ct 1,000 ct 16,000 ct 0,000 ct 0,000 ct 0,000 ct 0,000 ct 0,000 ct 0,000 ct 1 000 ct 000 ct 7 1,000 ct 1,000 ct 000 ct 7 00 10 187 00 100 1 10 00 70 0 1 10 00 0 10 00 1. 1. 1. 1. 1. 1. dc 80 80 80 80 866 1060 10 10 10 10 10 10 1 160 160 160 160 160 160 dc 7 60 77 11 11 7 7. 11 1800 1800 11 68 7 108 11 67 10 6 18 0 1 1 18 0 0 9 7 0. 168 80 :secondary.8:1.:1 1. 1. 6..8:1 :1 1.:1 :1 6.:1.77:1 :1.7:1 :1 1..16:1.7:1.8:1.:1 :1 1.:1 10.96:1.:1 :1 8:1 1.6:1 11.:1 8.9:1 :1.8:1 B / B / 1/ Qualification testing and approval to M7/7-0 and M7/7-11 shall be sufficient to grant approval to M7/7-001 through M7/7-11. / Includes electrostatic shield. Shield terminal shall be. Voltage ratio shall be to 1 at 0 khz.
Self-resonance: The self-resonant frequency shall be greater than 10 khz when measured with the secondaries carrying the specified load and the secondary voltage observed. Power output in watts (max):. at 00 Hz and higher,. at 00 and higher,.6 at 1 khz and higher. Marking location: See figure 1. Part or Identifying Number (PIN): M7/7- (dash number from table I) Custodians: Preparing activity: rmy - CR DL - CC Navy - EC ir Force - 11 (Project 90-109) DL - CC Review activities: rmy - R, CR Navy - S, MC, OS ir Force - 99 7