1、 AMSC N/A FSC 5955 INCH-POUND MIL-PRF-3098/102D 7 August 2009 SUPERSEDING MIL-PRF-3098/102C 17 May 2004 PERFORMANCE SPECIFICATION SHEET CRYSTAL UNIT, QUARTZ, CR125/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: 1.85 MHz to 3.05 MHz; fundamental mode; noncontrolled; antiresonance. FIGURE 1. Crystal unit - CR125/U. Provided by IHSNot for ResaleNo reproduction or networking permitted without licen
3、se from IHS-,-,-MIL-PRF-3098/102D 2 Ltr Inches mm Min Max Min Max A - .352 - 8.94 B - .725 - 18.42 C .223 .248 5.66 6.30 D .030 .037 0.76 0.94 E .030 .040 0.76 1.02 F .015 .025 0.38 0.64 G .460 .476 11.63 12.09 H - .757 - 19.23 J .030 .037 0.76 0.94 K - .317 - 8.05 L - .775 - 19.69 M .015 .025 0.38
4、0.64 N .075 .141 1.90 3.58 P .048 .052 1.22 1.32 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 - CR125/U - Continued. Provided by IHSNot fo
5、r ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-3098/102D 3 REQUIREMENTS: Dimensions, marking, and configuration: See figure 1. Frequency range: 1.85 MHz to 3.05 MHz, inclusive. Capacitance, shunt: 7 pF, maximum. Frequency tolerance: 0.005 percent. Mode of oscill
6、ation: Fundamental. Antiresonance, load capacitance: 32.0 pF .05 pF. Rated drive level: 1.0 mW, maximum. Operating temperature range (noncontrolled): -55C to +105C, inclusive. Equivalent resistance: See table I. TABLE I. Equivalent resistance. Frequency range inclusive Maximum resistance MHz Ohms 1.
7、85 to 1.999999 550 2.0 to 2.249999 500 2.25 to 2.999999 320 3.0 to 3.050000 175 Shock: Below 2 MHz 2 MHz and above Frequency change permitted: 0.001 percent 0.0005 percent Equivalent resistance change permitted: 15 percent or 2 ohms, whichever if greater. Vibration: Method 204, MIL-STD-202, test con
8、dition B; amplitude to produce 5 gravity units, maximum. Below 2 MHz 2 MHz and above Frequency change permitted: 0.001 percent 0.0005 percent Equivalent resistance change permitted: 15 percent or 2 ohms, whichever if greater. Temperature cycling: 0.001 percent. Aging: Frequency change permitted: 0.0
9、02 percent. Equivalent resistance: See table I. Aging temperature: 105C for 200 days. Reference documents. In addition to MIL-PRF-3098, this document references the following: MIL-STD-202 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-3098/1
10、02D 4 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
11、 evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relationship to the last previous issue. Custodians: Preparing activity: Army - CR DLA - CC Navy - EC Air Force - 99 (Project 5955-2009-035) DLA - CC Review activities: Air Force - 19,
12、84 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 the ASSIST Online database at http:/assist.daps.dla.mil/. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
