1、 MIL-PRF-3098/17G 05 March 2010 SUPERSEDING MIL-PRF-3098/17F 19 December 2003 PERFORMANCE SPECIFICATION SHEET CRYSTAL UNIT, QUARTZ, CR37/U This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the product described herein
2、shall consist of this specification sheet and MIL-PRF-3098. Pertinent characteristics: 90 kHz to 250 kHz; fundamental; noncontrolled; anti-resonance. FIGURE 1. Crystal unit - CR37/U. AMSC N/A FSC 5955 INCH POUND Copyright Communications - Electronics Command Provided by IHS under license with CRAINo
3、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-3098/17G 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. Crysta
4、l unit - CR37/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 K .223 .248 5.66 6.30 H - .317 - 8.05 J - 1.526 - 38.76 L .048 .052 1.22 1.32 M .075 .141 1.91 3.58 N
5、 .015 .025 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-3098/17G 3 REQUIREMENTS: Dimensions, marking, and configuration: See figure 1. Frequency range: 90 kHz
6、 to 250 kHz, inclusive. Capacitance, shunt: See table I. Frequency tolerance: Operating temperature range: 200 parts per million (ppm). Equivalent resistance: 90 kHz to 170 kHz: 5,000 ohms, maximum. 170+ kHz to 250 kHz: 5,500 ohms, maximum. Mode of oscillation: Fundamental. Antiresonance, load capac
7、itance: 20.0 pF 0.5 pF. Operating temperature range (noncontrolled): -40C to +70C, inclusive. Rated drive level: 1.0 mW, maximum. Shock (specified pulse): Frequency change permitted: 10 ppm. Equivalent resistance change permitted: 15 percent. Vibration: Method 201 of MIL-STD-202, amplitude 0.015 inc
8、h (total excursion 0.030 inch). Frequency change permitted: 10 ppm. Equivalent resistance change permitted: 15 percent. Temperature run: Frequency change permitted: 10 ppm. Equivalent resistance change permitted: 15 percent. Bond strength: 90 kHz to 170 kHz: 800 grams, minimum 170+ kHz to 250 kHz: 7
9、00 grams, minimum TABLE I. Capacitance, shunt. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-3098/17G 4 1/ The letter “f” represents specified frequency in kHz. A capaci
10、tance tolerance of 15 percent is permitted. Part or Identifying Number (PIN): CR37/U (followed by specified frequency), see 1.2 of MIL-PRF-3098. Referenced documents. In addition to MIL-PRF-3098, this document references the following: MIL-STD-202. The margins of this specification are marked with v
11、ertical 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
12、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: (Project 5955-2009-031) Army - AR, MI Navy - AS, MC, SH Air Force - 17, 19, 84 N
13、OTE: 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. Frequency range, Capacitance 1/ kHz 90 to 170 170+ to 250 pF 450 + 1.2 f 322 + 1.2 f Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
