# Ceramic Resonators (CERALOCK) FAQ

Characteristics

What are the meanings of the Marking?

They shows frequency marking and EIAJ Monthly Code.　Please refer to the following figure.
 CSTCR_G / CSTNR_G / CSTNE_G / CSTNE_V Series
*1：Frequency Marking
The following table shows typical examples of frequency marking.
Series Explanation Example
CSTCR_G/
CSTNR_G
We mark the second decimal place of the frequency without a decimal point. 6.000MHz→600
CSTNE_G We mark the first decimal place of the frequency without a decimal point.
But we replace number with the alphabet when the integer part of the frequency is a 2-digit. 10→X、11→Y、12→Z.
8.000MHz→80
10.000MHz→X0
CSTNE_V We mark the code as the frequency.There is no regularity.Please refer to specification of components. 20.000MHz→E
24.000MHz→J

*2：EIAJ Monthly Code
Marking code for manufacturing month & year
 Note) One cycle (A to z ) : Four years

Related FAQs
Most people who viewed this page also referred to the following pages.
 Q. Does CERALOCK have orientation? Q. Is there any problem if CERALOCK is mounted in opposite direction? Q. Why does frequency correlation occur when CERALOCK is mounted in opposite direction?

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