1、 INCH-POUND AMSC N/A FSC 5955 MIL-PRF-3098/42K 13 April 2010 SUPERSEDING MIL-PRF-3098/42J 9 December 2004 PERFORMANCE SPECIFICATION SHEET CRYSTAL UNIT, QUARTZ, CR64/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 sheet and MIL-PRF-3098. Pertinent characteristics: 2.4 MHz to 20 MHz; fundamental; noncontrolled; anti-resonance. FIGURE 1. Crystal unit - CR64/U. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot
3、 for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-3098/42K 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 - CR64/U - Continued. Ltr Inch
4、es 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 networking perm
5、itted without license from IHS-,-,-MIL-PRF-3098/42K 3 REQUIREMENTS: Dimensions, marking, and configuration: See figure 1. Frequency range: 2.4 MHz to 20 MHz, inclusive. Frequency tolerance: Operating temperature range: 50 parts per million (ppm). Antiresesonace, load capacitance: 30.0 pF 0.5 pF. Equ
6、ivalent resistance: See table I. Operating temperature range (noncontrolled): -55C to +105C, inclusive. Mode of oscillation: Fundamental. Rated drive level: 1.0 mW, maximum. Capacitance, shunt: 2.4 MHz to 4.0 MHz - 1.7 pF min. to 7.0 pF max. 4.0 MHz to 6.0 MHz - 2.7 pF min. to 7.0 pF max. 6.0 MHz to
7、 20.0 MHz - 3.7 pF min. to 7.0 pF max. Shock: Frequency change permitted: 5 ppm. Equivalent resistance change permitted: 10 percent. Vibration: Method 204 of MIL-STD-202, test condition A. Frequency change permitted: 5 ppm. Equivalent resistance change permitted: 10 percent. Thermal shock: Frequency
8、 change permitted: 5 ppm. Equivalent resistance change permitted: 10 percent. Aging: Frequency change permitted: 5 ppm. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-309
9、8/42K 4 TABLE I. Equivalent resistance. Part or Identifying Number (PIN): CR64/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: MIL-STD-202 The margins of this specification are marked with vertica
10、l 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 evaluate the requirements of this document based on the entire
11、 content irrespective of the marginal notations 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 5955-2009-055) Army - AR, MI, SM Navy - AS, CG, MC, OS, SH Air Force - 19, 84
12、 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.daps.dla.mil. Frequency range, inclusive
13、 Maximum resistance MHz 2.40 to 2.60 2.61+ to 2.89 2.90+ to 3.75 3.75+ to 4.75 4.75+ to 6.00 6.00+ to 7.00 7.00+ to 10.00 10.00+ to 20.00 Ohms 300 250 180 120 75 50 30 25 Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
