1、AMSC N/A FSC 5955 INCH-POUND MIL-PRF-3098/58J 7 January 2010 SUPERSEDING MIL-PRF-3098/58H 12 January 2005 PERFORMANCE SPECIFICATION SHEET CRYSTAL UNIT, QUARTZ, CR81/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: 17 MHz to 65 MHz; third mechanical overtone; noncontrolled; series resonance. FIGURE 1. Crystal unit - CR81/U. Copyright Communications - Electronics Command Provided by IHS under licen
3、se with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-3098/58J 2 Ltr Inches mm Min Max Min Max A - .435 - 11.05 B - .183 - 4.65 C - .402 - 10.21 D .027 .032 0.69 0.81 E .184 .200 4.67 5.08 F - .150 - 3.81 G - .530 - 13.46 H .223 .248 5.66 6.30 J .015
4、.025 0.38 0.64 K .165 .175 4.19 4.45 L .038 .042 0.97 1.07 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. 4. Pin undercut may be omitted. FIGURE 1. Crystal unit - CR81/U - Continued. REQUIREMENTS: Di
5、mensions, marking, and configuration: See figure 1. Frequency range: 17.0 MHz to 65.0 MHz, inclusive. Capacitance, shunt: 7.0 pF, maximum. Frequency tolerances (operating temperature range): 50 parts per million (ppm). Equivalent resistance: 40 ohms, maximum. Mode of oscillation: Third mechanical ov
6、ertone. Operating temperature ranges (noncontrolled): -55C to +105C, inclusive. Rated drive level: 1.0 mW, maximum. Resonance: Series. Shock (specified pulse): Frequency change permitted: 5 ppm. Equivalent resistance change permitted: 10 percent. Copyright Communications - Electronics Command Provid
7、ed by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-3098/58J 3 Vibration: Method 204 of MIL-STD-202, test condition A. Frequency change permitted: 5 ppm. Equivalent resistance change permitted: 10 percent. Thermal shock: Frequen
8、cy change permitted: 5 ppm. Equivalent resistance change permitted: 10 percent. Aging: Frequency change permitted: 5 ppm. Part or Identifying Number (PIN): CR81/U (followed by specified frequency), see 1.2 of MIL-PRF-3098. Reference documents. In addition to MIL-PRF-3098, this document references th
9、e 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 no liability whatsoever for any inaccuracies in these notations. Bidders and contracto
10、rs 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 - CR Army - CR Navy - EC Air Force - 99 Agent: DLA - CC DLA - CC Review activities: (Pro
11、ject 5955-2009-067) Army - AR, MI Navy - AS, MC, SH Air Force - 19, 84 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. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
