1、 INCH-POUND AMSC N/A FSC 5955 MIL-PRF-3098/34J 13 April 2010 SUPERSEDING MIL-PRF-3098/34G 9 December 2004 PERFORMANCE SPECIFICATION SHEET CRYSTAL UNIT, QUARTZ, CR56/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: 50 MHz to 125 MHz; fifth mechanical overtone; noncontrolled; series resonance. FIGURE 1. Crystal unit - CR56/U. Copyright Communications - Electronics Command Provided by IHS under lice
3、nse with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-3098/34J 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 - CR56/U - Con
4、tinued. 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
5、 networking permitted without license from IHS-,-,-MIL-PRF-3098/34J 3 REQUIREMENTS: Dimensions, marking, and configuration: See figure 1. Frequency range: 50 MHz to 125 MHz, inclusive. Capacitance, shunt: 7 pF, maximum. Frequency tolerances: Operating temperature range: 50 ppm. Equivalent resistance
6、: MHz Ohms, maximum 50 to 90 50 90+ to 125 60 Mode of oscillation: Fifth mechanical overtone. Operating temperature ranges (noncontrolled): -55C to +105C, inclusive. Drive level, rated: 1.0 mW, maximum. Resonance: Series. Shock (specified pulse): Frequency change permitted: 5 ppm. Equivalent resista
7、nce 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 change permitted: 5 ppm. Equivalent resistance change permitted: 10 percent. Aging: Frequency chan
8、ge permitted: 5 ppm. Part or Identifying Number (PIN): CR56/U (followed by specified frequency), see 1.2 of MIL-PRF-3098. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-3
9、098/34J 4 Reference 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 were made. This was done as a convenience only and the Government assumes
10、 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 relationship to the last previous issue. Custodians: Preparing activity: Army -
11、 CR Army - CR Navy - EC Air Force - 99 Agent: DLA - CC DLA - CC Review activities: (Project 5955-2009-047) Army - AR, MI, SM Navy - AS, CG, MC, OS, SH Air Force - 19, 84, 99 NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and re
12、sponsibilities can change, you should verify the currency of the information ab1ove 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-,-,-
