1、 AMSC N/A FSC 5955 INCH-POUND MIL-PRF-3098/93C 7 August 2009 SUPERSEDING MIL-PRF-3098/93B 17 May 2004 PERFORMANCE SPECIFICATION SHEET CRYSTAL UNIT, QUARTZ, CR117/U This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the
2、product described herein shall consist of this specification sheet and MIL-PRF-3098. Pertinent characteristics: 30 MHz to 63 MHz; third mechanical overtone; noncontrolled; series resonance. FIGURE 1 Crystal unit - CR117/U. Provided by IHSNot for ResaleNo reproduction or networking permitted without
3、license from IHS-,-,-MIL-PRF-3098/93C 2 Ltr Inches mm Min Max Min Max A - .402 - 10.21 B .184 .200 4.67 5.08 C - .435 - 11.05 D .223 .248 5.66 6.30 E - .150 - 3.81 F - .530 - 13.46 G .038 .042 0.96 1.07 H - .183 - 4.65 J .165 .175 4.19 4.44 K .027 .032 0.69 0.89 L .015 .025 0.38 0.63 NOTES: 1. Dimen
4、sions are in inches. 2. Metric equivalents are given for general information only. 3. Marking to be in accordance with MIL-PRF-3098. FIGURE 1 Crystal unit - CR117/U - Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-3098/93C 3 REQUI
5、REMENTS: Dimensions, marking, and configuration: See figure 1. Frequency range: 30 MHz to 63 MHz, inclusive. Frequency tolerance: Operating temperature range: 0.0015 percent of frequency measured at 25C. Reference temperature: 0.001 percent. Mode of oscillation: Third mechanical overtone. Operating
6、temperature range (noncontrolled): -40C to +65C, inclusive. Reference temperature: 25C. Operable temperature range: +65C to +80C, inclusive. Frequency and equivalent resistance: Method A, MIL-PRF-3098. Resonance: Series. Rated drive level: 1.0 mW, maximum. Calibration values: Resistance: 40 ohms. Cr
7、ystal current: 0.28 mA. Capacitance, shunt: 7 pF, maximum. Equivalent resistance: 40 ohms, maximum. Shock: Method 202, MIL-STD-202. Frequency change permitted: 0.0005 percent. Equivalent-resistance change permitted: 10 percent. Vibration: Method 204, MIL-STD-202, test condition A; .03 inch (0.76 mm)
8、 (.06 inch (15.24 mm) total excursion) 10 cps to 55 cps; amplitude to produce 5 gravity units, 55 cps to 500 cps. Frequency change permitted: 0.0005 percent. Equivalent-resistance change permitted: 10 percent. Aging: Frequency change permitted: 0.0005 percent. Reference documents. In addition to MIL
9、PRF-3098, this document references the following: MIL-STD-202 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
10、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. Provided by IHSNot for ResaleNo reproduction or networking permitted without license fr
11、om IHS-,-,-MIL-PRF-3098/93C 4 Custodians: Preparing activity: Air Force - 99 DLA - CC DLA - CC (Project 5955-2009-034) Review activities: Air Force - 19, 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-,-,-
