1、 INCH-POUND AMSC N/A FSC 5955 MIL-PRF-3098/24F 05 March 2010 SUPERSEDING MIL-PRF-3098/24E 9 December 2004 PERFORMANCE SPECIFICATION SHEET CRYSTAL UNIT, QUARTZ, CR45/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: 455 kHz; fundamental; noncontrolled; series resonance. FIGURE 1. Crystal unit - CR45/U. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for Res
3、aleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-3098/24F 2 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. 3. The pin undercut may be omitted. 4. Marking to be in accordance with MIL-PRF-3098. FIGURE 1. Crystal unit -
4、CR45/U - Continued. Ltr Inches mm Min Max Min Max A - .352 - 8.94 B - .725 - 18.42 C .030 .037 0.76 0.94 D .478 .494 12.14 12.55 E - .757 - 19.23 F .030 .040 0.76 1.02 G .015 .025 0.38 0.64 H - .317 - 8.05 J - .775 - 19.69 K .223 .248 5.66 6.30 L .048 .052 1.22 1.32 M .075 .141 1.91 3.58 N .015 .025
5、 0.38 0.64 Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-3098/24F 3 REQUIREMENTS: Dimensions, marking, and configuration: See figure 1. Frequency range: 455 kHz. Capacit
6、ance, shunt: 5.0 pF 2.5 pF. Mode of oscillation: Fundamental. Rated drive level: 1.0 mW, maximum. Resonance: Series. Calibration values: Equivalent resistance: 2,300 ohms. Resistor voltage drop: 2.14 volts. Operating temperature range (noncontrolled): -40C to +70C, inclusive. Frequency tolerance: 20
7、0 parts per million (ppm). There shall be a difference in frequency of 80 Hz 12 Hz between operation at series resonance and operation at antiresonance into load capacitance of 32.0 pF 0.5 pF. Both measurements for this purpose shall be made at room temperature. Equivalent resistance: 3,300 ohms, ma
8、ximum. Shock (specified pulse): Frequency change permitted: 30 ppm. Equivalent resistance change permitted: 15 percent. Vibration: Method 201 of MIL-STD-202, amplitude .015 inch (0.38 mm) (.030 inch (0.76 mm) total excursion). Frequency change permitted: 30 ppm. Equivalent resistance change permitte
9、d: 15 percent. Temperature run: Frequency change permitted: 10 ppm. Equivalent resistance change permitted: 15 percent. Bond strength: 500 grams, minimum. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted witho
10、ut license from IHS-,-,-MIL-PRF-3098/24F 4 Part or Identifying Number (PIN): CR45/U 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 are marked with verti
11、cal 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 this document based on the enti
12、re 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: (Project 5955-2009-041) Army - AR, MI Navy - AS, MC, SH Air Force - 19, 84 NOTE: The
13、 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-,-,-
