INCH-POUND MIL-PRF-28861/12G 23 January 2012 SUPERSEDING MIL-PRF-28861/12F 14 February 2008 PERFORMANCE SPECIFICATION SHEET FILTERS, AND CAPACITORS, RADIO FREQUENCY/ELECTROMAGNETIC INTERFERENCE, SUPPERESSION, HERMETICALLY SEALED ON ONE END ONLY, STYLE FS70 This specification is approved for use by all Departments and Agencies of the Department of Defense. The complete requirements for acquiring the filters described herein shall consist of this specification sheet and the latest issue of MIL-PRF-28861. FIGURE 1. Case dimensions and circuit diagrams. AMSC N/A FSC 59GP MIL-PRF-28861/12G Dash number 001 thru 016 033 and 034 017 thru 032 035 and 036 Configuration Circuit diagram L C A B Inches .002 .005 .020 .030 .110 .128 Inches .156 .200 .250 .625 .715 mm 0.05 0.13 0.51 0.76 2.79 3.25 A ±.005 .200 .110 B Ref .715 .625 mm 3.96 5.08 6.35 15.88 18.16 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. 3. Unless otherwise specified, tolerance is ±.005 (0.13 mm). 4. Circuit diagrams are for information only. 5. Filters shall be supplied with 60/40 solder preform. 6. Potting on non-hermetically sealed end shall not extend beyond .030 inch (0.76 mm) from the filter body. 7. Filters shall be installed using the recommended installation methods (solder-in style of MIL-PRF-28861). FIGURE 1. Case dimensions and circuit diagrams - Continued. 2 MIL-PRF-28861/12G REQUIREMENTS: Design and construction: Dimensions and configuration: See figure 1. Filters and capacitors shall be hermetically sealed on one end as shown in figure 1 for the respective style. Weight: .25 gram maximum for C circuit parts. .75 gram maximum for L circuit parts. Case and lead finish: G only (gold plated). Terminals: Solderable. Operating temperature range: -55°C to +125°C. Rated voltage: See table I. Rated current: 5 amperes, maximum. Capacitance: See table I. Dissipation factor: 2 percent maximum for capacitance values 10 pF through 100pF and 3 percent maximum for values greater than 100pF. Voltage and temperature limits of capacitance: +15 percent, -40 percent. Insulation resistance: At +25°C: 1,000 megohm-microfarads, or 100,000 megohms minimum, whichever is less. At +125°C: 100 megohm-microfarads or 10,000 megohms minimum, whichever is less. Insertion loss: At +25°C: In accordance with table I. At -55°C and +125°C: A 3 dB degradation from +25°C value shall be allowed. Voltage drop: 0.05 volt maximum. DC resistance: 0.01 ohm maximum. Seal: Not applicable. Temperature rise: +25°C, maximum. Solderability of terminals: In accordance with MIL-PRF-28861, except the temperature of the solder shall be +300°C +0°C, -5°C. Resistance to soldering heat: In accordance with MIL-PRF-28861, except the temperature of the solder shall be +300°C +0°C, -5°C. 3 MIL-PRF-28861/12G Solderability of mounting termination: In accordance with MIL-PRF-28861, except the temperature of the solder shall be +300°C +0°C, -5°C. Quality assurance provisions: In accordance with MIL-PRF-28861. Product assurance level: In accordance with table I. TABLE I. Electrical Characteristics. Dash Number Circuit 001, 017 002, 018 003, 019 004, 020 005, 021 006, 022 007, 023 008, 024 009, 025 010, 026 011, 027 012, 028 013, 029 014, 030 015, 031 016, 032 033, 035 034, 036 L C L C L C L C L C L C L C L C L C Product Assurance level Class B S X --X --X X X X X X X X X X X X X X X X X X X X X X X X X X X X X --X --- Rated Voltage Volts dc Capacitance (pF) -0 +100 percent 50 50 100 100 100 100 200 200 200 200 200 200 200 200 200 200 50 50 15,000 15,000 2,700 2,700 5,000 5,000 10 10 25 25 100 100 500 500 1,000 1,000 10,000 10,000 Minimum insertion loss (dB) in Accordance with MIL-STD-220 1/ 2/ 1 10 100 1 10 Mhz Mhz Mhz Ghz Ghz 7 25 42 50 60 7 25 40 50 60 --10 25 40 60 --10 25 30 60 --15 30 35 60 --15 30 35 60 ------5 10 ------4 10 ------10 15 ------10 15 ----3 20 30 ----3 20 20 ----15 30 50 ----15 30 50 --4 20 33 55 --4 20 31 55 4 20 38 50 60 4 20 35 40 60 Minimum Insertion loss At resonant Frequency 3/ 35dB 100Mhz – 1Ghz ---------------------5dB 1Ghz – 10Ghz 10dB 1Ghz – 10Ghz 28dB 1Ghz – 10Ghz 25dB 1Ghz – 10Ghz 35dB 100Mhz – 1Ghz 1/ For C circuits, insertion loss measurements shall be made under no load. For L circuits, insertion loss measurements shall be made under full load over the frequency range of 1Mhz to 10Mhz. Insertion loss measurements above this frequency range shall be made under no load. 2/ Except as specified in 3/, 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. 3/ The frequency range in which the resonant frequency dip will occur and the minimum insertion loss at the resonant frequency. 4 MIL-PRF-28861/12G Part or identifying Number (PIN): The PIN shall be as follows: M28861/12- XXX │ Dash no. per figure 1 and table I G │ Case finish X │ Product assurance level per MIL-PRF-28861 and table I Marking: Class B capacitors and filters shall not be marked. Class S filters and capacitors shall be marked with a green dot in accordance with FED-STD-595/14187. Full marking, in accordance with MIL-PRF-28861 shall be marked on the unit package. Soldering temperature: Caution: These devices shall not be exposed to soldering temperatures exceeding +300°C. Exposure time to soldering temperature of +300°C shall not exceed 1 minute. Installation note: These devices are intended to be installed into hermetically sealed packages with the glass seal oriented toward the outside world. Cataloging information: Circuits ‘C’s shall be cataloged under FSC 5910 as feed-through ceramic capacitors. Circuits ‘L’s shall be cataloged under FSC 5915 as radio frequency interference filters. Reference documents: In addition to MIL-PRF-28861, this specification sheet references the following documents. MIL-STD-220 FED-STD-595/14187 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. 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 59GP-2012-001) Review activities: Army - AR, AT, 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 https://assist.daps.dla.mil. 5