SPECIFYING SURFACE MOUNT QUARTZ CRYSTALS
Description
SPECIFYING SURFACE MOUNT QUARTZ CRYSTALS
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SURFACE MOUNT QUARTZ CRYSTALS
A typical surface mount quartz crystal specification reads like this:
24.
0140MHz 12SMX-B 15 30 20 18 Fund TR T
Frequency
Holder Style
Frequency Tolerance at 25°C
Frequency Stability
Lower end of Operating Temp Range
Circuit Condition
Overtone order
Packaging
Additional Text Code (for non-standard product)
The following notes define each element of the specification.
Frequency Frequency is normally specified in kilohertz (kHz) up to 999.
999kHz and in megahertz (MHz) from 1.
0MHz.
All our computer-generated transaction documents follow this standard convention automatically.
The frequency should be described to seven significant figures.
If seven significant figures are not used, we assume that any figure that might follow those given may be taken as zero.
Thus a frequency given as 16.
6MHz will be taken as 16.
60, not 16.
66667.
Some specifiers extend the use of kHz to all crystals operating in fun...
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