MIL-PRF-3098/84F
REQUIREMENTS:
Dimensions, marking, and configuration: See figure 1. 1/
Frequency range: 50 MHz to 93 MHz, inclusive.
Capacitance, shunt: 5.5 pF, maximum.
Frequency stability: ±2.5 ppm.
Mode of oscillation: Fifth mechanical overtone.
Operating temperature range (controlled): +80°C to +90°C, inclusive.
Frequency tolerance: ±10 ppm (including frequency stability).
Equivalent resistance: 50 ohms, maximum.
Operable temperature range: -55°C to +80°C and +90°C to +105°C.
Reference temperature: +85°C ±1°C.
Rated drive level: 1.0 mW, maximum.
Resonance: Series.
Shock:
Frequency change permitted: ±5 ppm.
Equivalent resistance change permitted: ±10 percent.
Vibration high frequency: Method 204, MIL-STD-202, test condition A.
Frequency change permitted: ±5 ppm.
Equivalent resistance change permitted: ±10 percent.
Thermal shock:
Frequency change permitted: ±5 ppm.
Equivalent resistance change permitted: ±10 percent.
Aging:
Frequency change permitted: ±3 ppm.
1/ These crystal units were previously fabricated using Air Force Technical Order 12-1-20 and/or Collins
drawing numbers 289-2844 through 2858-00.
Reference documents. In addition to MIL-PRF-3098, this document references the following:
The margins of this specification sheet 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 this document based on the entire content irrespective of the marginal
notations and relationship to the last previous issue.
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