1、AMSC N/A FSC 5955 INCH-POUND MIL-PRF-3098/78F 7 January 2010 SUPERSEDING MIL-PRF-3098/78E 12 January 2005 PERFORMANCE SPECIFICATION SHEET CRYSTAL UNIT, QUARTZ, CR6/U This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring th
2、e product described herein shall consist of this specification sheet and MIL-PRF-3098. Pertinent characteristics: 2 MHz to 10 MHz; fundamental; noncontrolled; antiresonance. FIGURE 1. Crystal unit - CR6/U. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for
3、ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-3098/78F 2 Ltr Inches mm Min Max Min Max A - .757 - 19.23 B - .352 - 8.94 C - .752 - 19.10 D .048 .052 1.22 1.32 E .478 .494 12.14 12.55 F - .317 - 8.05 G - .775 - 19.68 H - .448 - 11.38 J .012 .047 0.30 1.19 K .091 .
4、095 2.31 2.41 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. 3. The pin undercut may be omitted. 4. Marking to be in accordance with MIL-PRF-3098. FIGURE 1. Crystal unit - CR6/U - Continued. REQUIREMENTS: Dimensions, marking, and configuration: See
5、figure 1. Frequency range: 2.0 MHz to 10.0 MHz, inclusive. Mode of oscillation: Fundamental. Rated drive level: 1.0 mW maximum. Operating temperature range (noncontrolled): -40C to +70C, inclusive. Frequency tolerance: 50 parts per million (ppm). Equivalent resistance: See table I. Antiresonance, lo
6、ad capacitance: 13.0 pF 0.5 pF. Shock (specified pulse): Frequency change permitted: 5 ppm. Equivalent resistance change permitted: 10 percent. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license
7、from IHS-,-,-MIL-PRF-3098/78F 3 TABLE I. Equivalent resistance. Frequency range, Inclusive Maximum resistance MHz 2.00 to 2.1 2.1+ to 2.2 2.2+ to 2.25 2.25+ to 2.3 2.3+ to 2.4 2.4+ to 2.5 2.5+ to 2.6 2.6+ to 2.7 2.7+ to 2.8 2.8+ to 3.0 3.0+ to 3.2 3.2+ to 3.4 3.4+ to 3.7 3.7+ to 4.0 4.0+ to 4.5 4.5+
8、 to5.1 5.1+ to 6.2 6.2+ to 6.7 6.7+ to 7.2 7.2+ to 7.5 7.5+ to 8.0 8.0+ to 9.0 9.0+ to 10.0 Ohms 940 860 820 780 720 660 600 560 520 450 400 360 300 250 200 160 110 90 80 70 65 50 45 Vibration: Method 201 of MIL-STD-202. Frequency change permitted: 5 ppm. Equivalent resistance change permitted: 10 p
9、ercent. Thermal shock: Frequency change permitted: 5 ppm. Equivalent resistance change permitted: 10 percent. Part or Identifying Number (PIN): CR6/U (followed by specified frequency), see 1.2 of MIL-PRF-3098. Reference documents. In addition to MIL-PRF-3098, this document references the following:
10、MIL-STD-202 Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-3098/78F 4 The margins of this specification are marked with vertical lines to indicate where changes from the
11、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 notat
12、ions and relationship to the last previous issue. Custodians: Preparing activity: Army - CR Army - CR Navy - EC Air Force - 99 Agent: DLA - CC DLA - CC Review activities: (Project 5955-2009-077) Army - AR, MI Navy - AS, MC, SH Air Force - 19, 84 NOTE: The activities listed above were interested in t
13、his document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at https:/assist.daps.dla.mil. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
