1、 MIL-PRF-3098/25G 05 March 2010 SUPERSEDING MIL-PRF-3098/25F 19 December 2003 PERFORMANCE SPECIFICATION SHEET CRYSTAL UNIT, QUARTZ, CR46/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: 200 kHz to 550 kHz; fundamental; noncontrolled; antiresonance. FIGURE 1. Crystal unit - CR46/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-3098/25G 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 - CR46/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
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-3098/25G 3 REQUIREMENTS: Dimensions, marking, and configuration: See figure 1. Frequency range: 200 kHz
6、 to 550 kHz, inclusive. Frequency tolerance (operating temperature range): 100 parts per million (ppm). Equivalent resistance: See table II. Mode of oscillation: Fundamental. Antiresonance, load capacitance: 20 pF 0.5 pF. Operating temperature range: -40C to +85C, inclusive. Rated drive level: 1.0 m
7、W, maximum. Shock (specified pulse): Frequency change permitted: 10 ppm. Equivalent resistance change permitted: 15 percent. Vibration: Method 201 of MIL-STD-202, amplitude .015 inch (total excursion .030 inch). Frequency change permitted: 10 ppm. Equivalent resistance change permitted: 15 percent.
8、Temperature run: Frequency change permitted: 10 ppm. Equivalent resistance change permitted: 15 percent. Bond strength: See table I. TABLE I. Bond strength. Frequency range, inclusive (kHz) Grams, minimum 200 to 250 250+ to 320 320+ to 370 370+ to 435 435+ to 550 700 500 400 300 250 Copyright Commun
9、ications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-3098/25G 4 TABLE II. Equivalent resistance. Part or Identifying Number (PIN): CR46/U (followed by specified frequency), see 1.2 of MIL-PRF-
10、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 vertical lines to indicate where changes from the previous issue were made. This was done as a convenience only and the Government assumes n
11、o 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 previous issue. Custodians: Preparing activity: Army - C
12、R Army - CR Navy - EC Air force - 99 Agent: DLA - CC DLA - CC Review activities: (Project 5955-2009-042) Army - AR, MI Navy - AS, MC, SH Air Force - 17, 19, 84 NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities
13、 can change, you should verify the currency of the information above using the ASSIST Online database at https:/assist.daps.dla.mil. Frequency range, inclusive Maximum Resistance kHz 200 to 225 225+ to 275 275+ to 325 325+ to 375 375+ to 425 425+ to 475 475+ to 500 500+ to 550 Ohms 5,300 6,000 6,500 7,000 7,500 8,000 8,500 5,000 Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
