INCH-POUND MIL-PRF-28861/4D w/Amendment 1 23 January 2009 SUPERSEDING MIL-PRF-28861/4D 14 February 2008 PERFORMANCE SPECIFICATION SHEET FILTERS, RADIO FREQUENCY/ELECTROMAGNETIC INTERFERENCE SUPPRESSION, HERMETICALLY SEALED, STYLE FS40 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 sheet and MIL-PRF-28861. * FIGURE 1. Case and hardware dimensions and circuit diagrams. AMSC N/A FSC 5915 MIL-PRF-28861/4D W/Amendment 1 Dash number 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 Inches .003 .005 .007 .010 .015 A dimension (.010) .187 .187 .187 .187 .187 .187 .187 .187 .187 .187 .187 .187 .187 .187 .187 .187 .187 .187 mm 0.08 0.13 0.18 0.25 0.38 Dash number L dimension max .630 .630 .730 .630 .630 .730 .630 .630 .730 .630 .630 .730 .630 .630 .730 .630 .630 .730 Inches .022 .045 .070 .093 .115 A dimension (.010) .312 .312 .312 .312 .312 .312 .312 .312 .312 .312 .312 .312 .312 .312 .312 .312 .312 .312 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 mm 0.56 1.14 1.78 2.36 2.92 Inches .145 .187 .200 .250 .312 mm 3.68 4.75 5.08 6.35 7.92 Inches .395 .408 .410 .630 .730 L dimension max .630 .630 .730 .630 .630 .730 .630 .630 .730 .630 .630 .730 .630 .630 .730 .630 .630 .730 mm 10.03 10.36 10.41 16.00 18.54 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. 3. Circuit diagrams are for information only. 4. All filters shall be supplied with mounting hardware (hex nut and lockwasher). Mounting hardware shall be furnished with the same finish as the filter case. 5. Terminal identification (nonsymmetrical filters): The case shall be marked at the threaded end of the filter with the symbol "C" or the symbol "L" as follows, or the circuit diagram shall be marked on the case. Circuit Symbol C L1 6. 7. 8. 9. L2 L Optional slot may be supplied, .050 .010 inches (1.27 0.25 mm) x .070 .010 inches (1.78 0.25 mm). Imperfect thread or undercut optional .050 inch (1.27 mm) maximum. One imperfect thread allowed .035 inch (0.89 mm) maximum. Recommended mounting torque: 44 inch-ounces 4 inch-ounces. FIGURE 1. Case and hardware dimensions and circuit diagrams - Continued. 2 MIL-PRF-28861/4D W/Amendment 1 REQUIREMENTS: Design and construction: Dimensions and configuration: See figure 1. Weight: 10 grams maximum. Case finish: T, S, or G in accordance with MIL-PRF-28861 (pure tin finish is prohibited). Mounting hardware: Shall be furnished with the same finish as the filter case (pure tin finish is prohibited). Terminals: Solderable. Operating temperature range: -55C to +125C. Rated voltage: 70 V dc. Rated current: See table I. Capacitance: See table I for minimum capacitance value. Dissipation factor: 3 percent maximum. Voltage and temperature limits of capacitance: +15 percent, -40 percent. Insulation resistance: At +25C: 1,000 megohms minimum or 1,000 megohm-microfarads minimum, whichever is less. At +125C: 100 megohms minimum or 100 megohm-microfarads minimum, whichever is less. Insertion loss: See table I. Voltage drop: See table I. DC resistance: See table I. -7 3 Seal: In accordance with MIL-PRF-28861. Leakage rate for class S filters shall not exceed 1 x 10 atm cm /s. Temperature rise: +25C maximum. Solderability of terminals: In accordance with MIL-PRF-28861. Product assurance level: In accordance with MIL-PRF-28861 and table I. Part or Identifying Number (PIN): The PIN shall be as follows: X M28861/04 - XXX | | | | Dash no. in Case finish accordance with figure 1 and table I X | |________ Product assurance level in accordance with MIL-PRF-28861 and table I 3 TABLE I. Electrical characteristics. Dash number Product assurance level Circuit Class Maximum current (amps) Minimum capacitance (F) Maximum voltage drop (volts) Maximum DC resistance (ohms) Minimum insertion loss (dB) in accordance with MIL-STD-220 1/ 2/ At +25C At -55C and +125C 30 kHz 50 kHz 100 kHz 150 kHz 300 kHz 1 MHz 10 MHz 100 MHz 1 GHz 15 kHz 30 kHz 50 kHz 100 kHz 150 kHz 300 kHz 1 MHz 10 MHz 100 MHz 1 GHz 1.70 9 20 29 41 48 60 70 70 70 70 7 18 27 39 46 58 68 70 70 70 1.70 9 20 29 41 48 60 70 70 70 70 7 18 27 39 46 58 68 70 70 70 0.17 1.70 15 36 50 69 79 80 80 80 80 80 13 34 48 67 77 78 78 80 80 80 0.70 0.23 0.77 6 15 23 35 42 54 70 70 70 70 4 13 21 33 40 52 68 70 70 70 0.70 0.23 0.77 6 15 23 35 42 54 70 70 70 70 4 13 21 33 40 52 68 70 70 70 0.30 1.40 0.23 0.77 --- 29 44 62 73 80 80 80 80 80 --- 27 42 60 71 78 78 80 80 80 L1 0.50 0.70 0.18 0.36 5 12 19 29 36 48 69 70 70 70 3 10 17 27 34 46 67 70 70 70 L2 0.50 0.70 0.18 0.36 5 12 19 29 36 48 69 70 70 70 3 10 17 27 34 46 67 70 70 70 0.50 1.40 0.18 0.36 --- 21 37 56 67 80 80 80 80 80 --- 19 35 54 65 78 78 80 80 80 L1 1.0 0.70 0.14 0.14 5 11 15 21 26 36 55 70 70 70 3 9 13 19 24 34 53 70 70 70 0.14 5 11 15 21 26 36 55 70 70 70 3 9 13 19 24 34 53 70 70 70 0.14 --- --- 20 46 57 75 80 80 80 80 --- --- 18 44 55 73 78 80 80 80 5 10 14 20 24 31 45 70 70 70 3 8 12 18 22 29 43 70 70 70 0.05 5 10 14 20 24 31 45 70 70 70 3 8 12 18 22 29 43 70 70 70 0.05 --- --- --- 17 36 51 80 80 80 80 --- --- --- 15 34 49 78 80 80 80 --- --- --- 14 17 24 36 60 70 70 --- --- --- 12 15 22 34 60 70 70 --- --- 14 17 24 36 60 70 70 --- --- --- 12 15 22 34 60 70 70 --- --- --- 16 38 75 80 80 80 --- --- --- --- 14 36 73 80 80 80 S 001, 019 X X L1 0.10 0.70 0.17 002, 020 X X L2 0.10 0.70 0.17 003, 021 X X 0.10 1.40 004, 022 X X L1 0.30 005, 023 X X L2 0.30 006, 024 X X 007, 025 X X 008, 026 X X 009, 027 X X 010, 028 X X 011, 029 X X L2 1.0 0.70 0.14 012, 030 X X 1.0 1.40 0.14 013, 031 X X L1 3.0 0.70 0.15 0.05 014, 032 X X L2 3.0 0.70 0.15 015, 033 X X 3.0 1.40 0.15 016, 034 X X L1 5.0 0.70 0.075 0.015 017, 035 X X L2 5.0 0.70 0.075 0.015 --- 018, 036 X X 5.0 1.40 0.075 0.015 --- 1/ Insertion loss measurements shall be made under full load over the frequency range of 100 kHz to 10 MHz. Insertion loss measurements above and below this frequency range shall be under no load. 2/ The insertion loss requirements between any two adjacent specified frequencies shall be that of the lower of the two frequencies in order to accommodate resonant dips. MIL-PRF-28861/4D W/Amendment 1 4 15 kHz B MIL-PRF-28861/4D W/Amendment 1 * Reference documents. In addition to MIL-PRF-28861, this specification sheet references the following document: MIL-STD-220 The margin of this specification sheet is marked with asterisks 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. 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. Custodians: Army - CR Navy - EC Air Force - 85 DLA - CC NASA - NA Preparing activity: DLA - CC (Project 5915-2009-013) Review activities: Army - AV, 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 ASSIST Online database at http://assist.daps.dla.mil . 5