1、 AMSC N/A FSC 5955 INCH-POUND MIL-PRF-3098/123D 7 August 2009 SUPERSEDING MIL-PRF-3098/123C 17 May 2004 PERFORMANCE SPECIFICATION SHEET CRYSTAL UNIT, QUARTZ, CR142/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: 833.333 kHz; fundamental mode; controlled; antiresonance. FIGURE 1. Crystal unit - CR142/U. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-
3、,-,-MIL-PRF-3098/123D 2 Ltr Inches mm Min Max Min Max A - .352 - 8.94 B - .725 - 18.42 C .223 .248 5.66 6.30 D .030 .037 0.76 0.94 E .460 .476 11.68 12.09 F - .757 - 19.23 G .030 .040 0.76 1.02 H .015 .025 0.38 0.64 J - .775 - 19.68 K - .317 - 8.05 L .015 .025 0.38 0.64 M .075 .141 1.90 3.58 N .048
4、.052 1.22 1.32 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 - CR142/U - Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from I
5、HS-,-,-MIL-PRF-3098/123D 3 REQUIREMENTS: Dimensions, marking, and configuration: See figure 1. Frequency: 833.333 kHz. Capacitance, shunt: 7.0 pF, maximum. Mode of oscillation: Fundamental. Rated drive level: 1.0 mW, maximum. Calibration values: Equivalent-resistance: Zero ohms. Crystal current: Set
6、 crystal current control at extreme counterclockwise, minimum. Antiresonance, load capacitance: 32.0 pF 0.2 pF. Reference temperature: 75C 1C. Operating temperature range (controlled): +70C to +80C, inclusive. Frequency tolerance: 0.001 percent. Equivalent resistance: 275 ohms, maximum. Frequency st
7、ability: 0.0005 percent. Operable temperature range: -55C to +70C and +80C to +90C, inclusive. Shock: Frequency change permitted: 0.0005 percent. Equivalent resistance: 15 percent. Vibration: Method 201, MIL-STD-202. Frequency change permitted: 0.0005 percent. Equivalent resistance change permitted:
8、 15 percent. Temperature cycling: Frequency change permitted: 10 Hz. Equivalent resistance change permitted: 20 percent. Aging: Frequency change permitted: 0.0005 percent. Reference documents. In addition to MIL-PRF-3098, this document references the following: MIL-STD-202 The margins of this specif
9、ication 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 contractors are cautioned to evaluate the requirements of th
10、is document based on the entire content irrespective of the marginal notations and relationship to the last previous issue. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-3098/123D 4 Custodians: Preparing activity: Army - CR DLA - CC Navy -
11、EC Air Force - 99 (Project 5955-2009-038) DLA - CC Review activities: 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 http:/assist.daps.dla.mil/. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
