1、 INCH-POUND AMSC N/A FSC 5955 MIL-PRF-3098/99E 6 March 2013 SUPERSEDING MIL-PRF-3098/99D 16 January 2006 PERFORMANCE SPECIFICATION SHEET CRYSTAL UNIT, QUARTZ, CR122/U This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring t
2、he product described herein shall consist of this specification and MIL-PRF-3098. Pertinent characteristics: 50 MHz to 125 MHz; fifth mechanical overtone; controlled; series resonance. FIGURE 1. Crystal unit - CR122/U. Provided by IHSNot for ResaleNo reproduction or networking permitted without lice
3、nse from IHS-,-,-MIL-PRF-3098/99E 2 Ltr Inches mm Min Max Min Max A - .402 - 10.21 B - .183 - 4.65 C - .435 - 11.05 D .184 .200 4.67 5.08 E - .530 - 13.46 F .50 - 12.7 - G - .150 - 3.81 H .015 .019 0.38 0.48 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information
4、only. 3. Marking to be in accordance with MIL-PRF-3098. FIGURE 1. Type CR122/U, crystal unit - Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-3098/99E 3 REQUIREMENTS: Dimensions, marking, and configuration: See figure 1. Frequency
5、 range: 50 MHz to 125 MHz, inclusive. Capacitance, shunt: 7 pF, maximum. Frequency tolerances: Operating temperature range: 10 ppm. Reference temperature: 10 ppm. Room temperature: 80 ppm. Frequency stability: 5 ppm. Mode of oscillation: Fifth mechanical overtone. Rated drive level: 1.0 mW, maximum.
6、 Resonance: Series. Reference temperature: +85C 1C. Temperature ranges: Operating (controlled): +80C to +90C, inclusive. Operable: +55C +80C, inclusive. Equivalent resistance: MHz Ohms, max 50 to 100 50 100 to 125 60 Shock (specified pulse): Frequency change permitted: 5 ppm. Equivalent resistance c
7、hange permitted: 10 percent Vibration: Method 201, MIL-STD-202. Frequency change permitted: 5 ppm. Equivalent resistance change permitted: 10 percent. Thermal shock: 10 percent. Aging: Frequency change permitted: 5 ppm. Reference documents. In addition to MIL-PRF-3098, this document references the f
8、ollowing: MIL-STD-202 The margins of this specification sheet 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 contra
9、ctors 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 from IHS-,-,-MIL-PRF-3098/99E 4 Custo
10、dians: Preparing activity: Army - CR Army - CR Navy - EC Air Force - 85 Agent: DLA - CC DLA - CC Review activities: (Project 5955-2012-012) Air Force - 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 the ASSIST Online database at https:/assist.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
