CFV206 40.000KAZF-UB

## TUNING FORK CRYSTAL UNIT (Cylinder Type) 

## RoHS compliant / Pb free 

## CFV-206 

## ■ FEATURES 

- Frequency range : 30 ～ 100kHz 

- External dimensions (mm) 

- Φ : 2.0 x L : 6.2 

- Applications Radio-controlled clock / Communication devices 

## ■ DIMENSION [mm] 

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CFV-206図面<br>**----- End of picture text -----**<br>


## ■ STANDARD SPECIFICATIONS 

|Model<br>Item|Model<br>Item|CFV-206|Conditions|
|---|---|---|---|
|**Nominal Frequency**|f0|30kHz ～ 100kHz|Please contact us for<br>frequencies available|
|**Frequency Tolerance**|Δf/f0|±20ppm / ±30ppm|at 25℃|
|**Load capacitance**|CL|12.5pF||
|**Operating Temperature Range**|TOPR|-20℃ ～ +70℃||
|**Storage Temperature Range**|TSTR|-40℃ ～ +85℃||
|**Turnover Temperature**|TM|25℃±5℃||
|**Temperature Coefficient**|β|-0.034±0.006ppm/℃2||
|**Motional (series) resistance**|R1|50KΩ Max.|at 25℃|
|**Level of drive**|DL|1μW Max.||
|**Aging (first year)**|Δf/f0|±5ppm Max.|25℃±3℃|
|**Shunt capacitance**|C0|0.8pF ～ 1.7pF Typ.|Depend on frequency|



- ~~a~~ http://cfd.citizen.co.jp/english/prod tech/product/cvo_top.html 

## ■ PART NUMBERING SYSTEM 

## **CFV-206   60000    A  Z  F  B  -  □□□** 

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Frequency Frequency Tolerance Frequency Tolerance over Package specification CITIZEN<br>（at 25℃) Operating Temp. Range management code<br>B Only Bulk<br>Please specify A ±30ppm (STD) Z Standard Spec. Ref. Code for<br>the frequency D ±20ppm internal use.<br>in Hz.<br>Load capacitance (CL)<br>F 12.5pF (STD)<br>**----- End of picture text -----**<br>


*Please contact us for specifications available. 

## ■ Part Marking [standard] 

**CFV-206** fffff ym### C) SE 

f : Frequency in Hz unit 

y : The last digit of production year 

m : Production month (See Table.1) 

# : Production Lot No. 

Table.1 Month Jan Feb … Sep Oct Nov Dec ~~rr eee~~ Code 1 2 … 9 X Y Z ~~rr ee~~ 

## ■ Handling Notes 

## **Mounting** 

Soldering the body of cylinder type crystal unit must be strictly avoided as it may cause significant deterioration in characteristics of the product. 

Rubber adhesive is recommended for mounting. 

## **Bending Lead** 

Hold the body of crystal unit by hand, and the part to be bent with tweezers leaving more than 1.5mm of lead from the body case.  (3.0mm is recommended) 

Bend the lead 90°holding with the tweezers. Pulling the lead strongly may crack the hermetic seal glass at the root of the lead and may cause the airtightness and the characteristics to deteriorate. 

Rev.1 

- http://cfd.citizen.co.jp/english/prod tech/product/cvo_top.html