1、 INCH-POUND AMSC N/A FSC 5955 MIL-PRF-3098/122E 28 July 2011 SUPERSEDING MIL-PRF-3098/122D 27 July 2005 PERFORMANCE SPECIFICATION SHEET CRYSTAL UNIT, QUARTZ, CR141/U This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring th
2、e product described herein shall consist of this specification sheet and MIL-PRF-3098. Pertinent characteristics: 48 MHz to 90 MHz; fifth mechanical overtone; noncontrolled; series resonance. NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. 3. Marking
3、 shall be in accordance with MIL-PRF-3098. FIGURE 1. Crystal unit - CR141/U. Ltr Inches mm Min Max Min Max A - .402 - 10.21 B - .183 - 4.65 C - .435 - 11.05 D .184 .200 4.67 5.08 E - .530 - 13.46 F .50 - 12.7 - G - .150 - 3.81 H .016 .019 0.38 0.48 Copyright Communications - Electronics Command Prov
4、ided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-3098/122E 2 REQUIREMENTS: Dimensions, marking, and configuration: See figure 1. Frequency range: 48.0 MHz to 90 MHz, inclusive. Frequency tolerance: Primary operating tempera
5、ture range: 25 ppm. Secondary operating temperature range: 45 ppm. Equivalent resistance: 50 ohms. Mode of oscillator: Fifth mechanical overtone. Operating temperature ranges: Primary: -30C to 55C, inclusive. Secondary: -55C to -30C and +55C to +65C, inclusive. Rated drive level: 1.0 mW, maximum. Re
6、sonance: Series. Capacitance, shunt: 7.0 pF, maximum. Shock: Frequency change permitted: 5 ppm. Equivalent resistance change permitted: 10 percent. Vibration: Method 204, MIL-STD-202, test condition A. Frequency change permitted: 5 ppm. Equivalent resistance change permitted: 10 percent. Thermal sho
7、ck: Frequency change permitted: 5 ppm. Equivalent resistance change permitted: 10 percent. Aging: Frequency change permitted: 5 ppm. Part or Identifying Number (PIN): For Product Level B, PIN shall be CR141/U or CR141B/U (followed by specified frequency). For Product Level S, PIN shall be CR141S/U (
8、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 sheet are marked with vertical lines to indicate where changes from the previous issue were made. This was
9、 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 to the last
10、previous issue. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-3098/122E 3 Custodians: Preparing activity: Army - CR Army - CR Navy - EC Air Force - 99 Agent: DLA - CC DL
11、A - CC (Project 5955-2011-009) 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-,-,-
