1、 MIL-PRF-3098/39H 13 April 2010 SUPERSEDING MIL-PRF-3098/39G 9 December 2004 PERFORMANCE SPECIFICATION SHEET CRYSTAL UNIT, QUARTZ, CR61/U This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the product described herein s
2、hall consist of this specification sheet and MIL-PRF-3098. Pertinent characteristics: 17 MHz to 61 MHz; third mechanical overtone; controlled; series resonance. FIGURE 1. Crystal unit - CR-61/U. AMSC N/A FSC 5955 INCH POUND Copyright Communications - Electronics Command Provided by IHS under license
3、 with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-3098/39H 2 NOTES: 1. Dimensions 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 - CR-61/U - Conti
4、nued. Ltr Inches mm Min Max Min Max A - .183 - 4.65 B - .435 - 11.05 C - .402 - 10.21 D - .530 - 13.46 E .500 - 12.70 - F .016 .019 0.41 0.48 G - .150 - 3.81 H .184 .200 4.67 5.08 Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or n
5、etworking permitted without license from IHS-,-,-MIL-PRF-3098/39H 3 REQUIREMENTS: Dimensions, marking, and configuration: See figure 1. Frequency range: 17 MHz to 61 MHz, inclusive. Capacitance, shunt: 7 pF, maximum. Frequency tolerances: Operating temperature range: 20 parts per million (ppm). Room
6、 temperature: 80 ppm. Frequency stability: 5 ppm. Equivalent resistance: 40 ohms, maximum. Mode of oscillation: Third mechanical overtone. Reference temperature: +85C 1C. Temperature ranges: Operating (controlled): +80C to +90C, inclusive. Operable: -55C to +80C, inclusive. Rated drive level: 1.0 mW
7、, maximum. Resonance: Series. Shock: Frequency change permitted: 5 ppm. Equivalent resistance change permitted: 10 percent. Vibration: Method 201 of MIL-STD-202. Frequency change permitted: 5 ppm. Equivalent resistance change permitted: 10 percent. Thermal shock: Frequency change permitted: 5 ppm. E
8、quivalent resistance change permitted: 10 percent. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-3098/39H 4 Aging: Frequency change permitted: 5 ppm. Part or Identifying
9、 Number (PIN): CR61/U (followed by specified frequency), see 1.2 of MIL-PRF-3098. Referenced documents. In addition to MIL-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
10、 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 relat
11、ionship 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 5955-2009-051) Army - AR, MI, SM Navy - AS, CG, MC, OS, SH Air Force - 19, 84 NOTE: The activities listed above were interested in thi
12、s 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-,-,-
