1、 MIL-PRF-3098/33K 13 April 2010 SUPERSEDING MIL-PRF-3098/33J 19 December 2003 PERFORMANCE SPECIFICATION SHEET CRYSTAL UNIT, QUARTZ, CR55/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
2、shall consist of this specification sheet and MIL-PRF-3098. Pertinent characteristics: 17 MHz to 62 MHz; third mechanical overtone; noncontrolled; series resonance. FIGURE 1. Crystal unit - CR55/U. AMSC N/A FSC 5955 INCH POUND 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-3098/33K 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 - CR55/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-3098/33K 3 REQUIREMENTS: Dimensions, marking, and configuration: See figure 1. Frequency range: 17 MHz to 62 MHz, inclusive. Capacitance, shunt: 7 pF, maximum. Frequency tolerance (operating temperature range): 50 parts per million (ppm). Eq
6、uivalent resistance: 40 ohms, maximum. Mode of oscillation: Third mechanical overtone. Calibration values: Resistance: 40 ohms. Resistor voltage drop: 0.28 volt. Rated drive level: 1.0 mW, maximum. Resonance: Series. Operating temperature range: -55C to +105C, inclusive. Shock (specified pulse): Fre
7、quency change permitted: 5 ppm. Equivalent resistance change permitted: 10 percent. Vibration high frequency: 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. Equivale
8、nt resistance change permitted: 10 percent. Aging: Frequency change permitted: 5 ppm. Part or Identifying Number (PIN): CR55/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 reproducti
9、on or networking permitted without license from IHS-,-,-MIL-PRF-3098/33K 4 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 were m
10、ade. 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 relationship
11、 to the last previous issue. Custodians: Preparing activity: Army - CR Army - CR Navy - EC Air force - 99 DLA - CC Agent: DLA - CC Review activities: Army - AR, MI, SM (Project 5955-2009-046) Navy - AS, CG, MC, OS, SH Air Force - 19, 84, 99 NOTE: The activities listed above were interested in this d
12、ocument 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-,-,-
