1、AMSC N/A FSC 5955 INCH-POUND MIL-PRF-3098/79F 7 August 2009 SUPERSEDING MIL-PRF-3098/79E 17 May 2004 PERFORMANCE SPECIFICATION SHEET CRYSTAL UNIT, QUARTZ, CR104/U This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the p
2、roduct described herein shall consist of this specification sheet and MIL-PRF-3098. Pertinent characteristics: 200 kHz to 580 kHz; fundamental; controlled; antiresonance. FIGURE 1. Type CR104/U, crystal unit. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from I
3、HS-,-,-MIL-PRF-3098/79F 2 Ltr Inches mm Min Max Min Max A - .725 - 18.42 B .478 .494 12.14 12.55 C - .757 - 19.23 D - .352 - 8.94 E - .775 - 19.69 F .50 - 12.7 - G - .317 - 8.05 H .028 .032 0.71 0.81 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. 3.
4、 Marking to be in accordance with MIL-PRF-3098. FIGURE 1. Type CR104/U, crystal unit - Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-3098/79F 3 REQUIREMENTS: Dimensions, marking, and configuration: See figure 1. Frequency range:
5、200 kHz to 580 kHz, inclusive. Mode of oscillation: Fundamental. Rated drive level: 1.0 mW, maximum. Calibration values: Resistance: 2,000 ohms. Resistor voltage drop: 2.0 volts. Antiresonance, load capacitance: 21.5 pF 0.5 pF. Reference temperature: +75C 1C Operating temperature (controlled): +70C
6、to +80C, inclusive. Frequency tolerance: See table I. Equivalent resistance: 200 kHz to 300 kHz: 3,000 ohms, maximum. 300+ kHz to 580 kHz: 2,500 ohms, maximum. Frequency stability: 5 parts per million (ppm). Operable temperature range: -40C to + 70C, inclusive. Shock: Frequency change permitted: 5 p
7、pm. Equivalent resistance change permitted: 15 percent. Vibration: Method 201 of MIL-STD-202, amplitude .015 inch (0.31 mm) total excursion .030 inch (0.76 mm). Frequency change permitted: 5 ppm. Equivalent resistance change permitted: 15 percent. Thermal shock: Frequency change permitted: 10 ppm. E
8、quivalent resistance change permitted: 15 percent. Bond strength: See table II. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-3098/79F 4 TABLE I. Frequency response. 1/ Crystal units in the frequency range 485 through 580 kHz (frequency tol
9、erance 10 PPM) shall be identified by a blue lacquer dot approximately .125 inch (3.18 mm) diameter. It shall be located on top of the can to the right of the letters “kHz.” TABLE II. Bond strength. Reference documents. In addition to MIL-PRF-3098, this document references the following: MIL-STD-202
10、 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 contractors are cautioned to eval
11、uate 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 DLA - CC Navy - EC Air Force - 99 (Project 5955-2009-008) DLA - CC Review activities: Air Force - 19, 84 NO
12、TE: 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/. Frequency range, inclusive Ma
13、ximum resistance kHz 200 to 339 339+ to 484.999 485 to 580 Ohms 20 ppm 15 ppm 10 ppm Frequency range, inclusive (kHz) Grams, minimum 200 to 250 250+ to 320 320+ to 370 370+ to 435 435+ to 580 700 500 400 300 250 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
