Ceramic Resonators (CERALOCK®) FAQ

Characteristics

What are the meanings of the Marking?

They shows frequency marking and EIAJ Monthly Code. Notation systems of frequency marking vary with series. Please refer to the following figure.
Marking
Marking
CSTCC_G Series
CSTCR_G / CSTCE_G
CSTCE_V / CSTCW_X (*3)
Series
*1:Frequency Marking
The following table shows typical examples of frequency marking.
Regarding other frequency, please refer to each specification or contact us.
Series Explanation Example
CSTCC_G
CSTCR_G
We mark the second decimal place of the frequency without a decimal point. 2.000MHz→200
6.000MHz→600
CSTCE_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
CSTCE_V
CSTCW_X (*3)
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
EIAJ Monthly Code
  Note) One cycle (A to z ) : Four years

*3:CSTCW Series
Not recommended for new designs. We are evaluating the schedule for the discontinuing of production of this item.

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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