ECS-73-20-28AX-TR

## Sus 

## **CSM-4AX SMD CRYSTAL** 

The CSM-4AX is an excellent choice for a low cost SMD crystal.  The CSM-4AX (28AX) has a case height of 5.0 mm Max. in a resistance weld metal package.  Lower profile package height of 4.0 mm Max. is available with the (28ALX) package. 

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## **OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS** 

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CSM-4AX SMD CRYSTAL<br>**----- End of picture text -----**<br>


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PARAMETERS  CONDITIONS  CSM-4AX  UNITS<br>MIN  TYP  MAX<br>Frequency   3.57  30.000  MHz<br>Mode of Oscillation  Fundamental<br>Frequency Tolerance*    @ +25°C   ± 30   ppm<br>) ee Frequency Stability*   es -10 ~ +70°C   es ee ± 50  ee ppm<br>ee Shunt Capacitance  Co  es es ee ee 7  pF<br>Cost Effective  ee Load Capacitance  Specify in P/N  es es 10  20  ee Series  ee pF<br>Low Profile  ee Drive Level  es DL  es ee 500  μW<br>Industry Standard Footprint  ee Operating Temperature*  es Topr   -10  es ee +70  °C<br>Pb Free/RoHS Compliant  es Storage Temperature  ee Tstg  -55  +125  °C<br>ee Aging (First Year)  e @ +25°C ±3°C  s es ee ±5  es ppm<br>DIMENSIONS (mm)<br>Frequency (MHz)         ESR Ω Max.<br>3.57 ~ 4.999  200<br>5.000 ~ 5.999  150<br>iT vine | 2.0 4 iL ; 6.000 ~ 6.999  100<br>- and L_] 7.000 ~ 8.999  80<br>9.000 ~ 12.999  60<br>(es Height"H" MAX |<br>13.000 ~ 19.999  40<br>20.000 ~ 30.000  30<br>**----- End of picture text -----**<br>


- Cost Effective 

- Low Profile 

- Industry Standard Footprint 

- Pb Free/RoHS Compliant 

_**Figure 1)** Top, Side, and End_ 

_**Figure 2)** Suggested land_ 

**PART NUMBERING GUIDE:  Example ECS-200-20-28AX-TR** 

|**ECS -  FREQUENCY ABBREVIATION**|**ECS -  FREQUENCY ABBREVIATION**|**ECS -  FREQUENCY ABBREVIATION**||**LOAD**||||**PACKAGE**|||||**AVAILABLE OPTIONS**|**AVAILABLE OPTIONS**|**AVAILABLE OPTIONS**||**PACKAGING**|**PACKAGING**|**PACKAGING**||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|||||**CAPACITANCE**|||||||Tolerance           Stability                 Temp Range|||Tolerance           Stability                 Temp Range|Tolerance           Stability                 Temp Range|Tolerance           Stability                 Temp Range|Tolerance           Stability                 Temp Range||||
||||||||||||||||||||||
|200 = 20.000  MHz<br>ECS||||20 = 20 pF|||28AX = 5.0 mm|||Blank = Std|||Blank= Std||Blank= Std||||TR =||
|See P/N Guide||||S = Series|||28ALX = 4.0 mm|||A = ± 25ppm|||D= ±100 ppm||L =   -10 ~ +70°C||||Tape||
|||||||||||J = ± 20ppm<br>R = ± 15ppm<br>C = ± 10ppm|||E = ± 50 ppm<br>G = ± 30 ppm<br>H = ± 25 ppm||M = -20 ~ +70°C<br>Y  =  -30 ~ +85°C<br>N =  -40 ~ +85°C||||& Reel<br>1K/Reel||
|* Specify available options in P/N.|||||||||||||T = ± 20 ppm †||P =  -40 ~ +105°C||||||
|† Contact ECS for availability over extended temp range.||||† Contact ECS for availability over extended temp range.|||||||||W = ±15 ppm †<br>K = ± 10 ppm †||S =  -40 ~ +125°C<br>U =  -55 ~ +125°C||||Rev.2017||



* Specify available options in P/N. † Contact ECS for availability over extended temp range. 

## **CSM-4AX SMD CRYSTAL** 

## **POCKET TAPE DIMENSIONS (mm)** 

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AT ee Te ETS Le [or reo<br>rar [ss [ao] ws| eo 22 Toe [se [30 | tts<br>**----- End of picture text -----**<br>


**SOLDER PROFILE** Peak solder Temp +260°C Max 10 sec Max. 2 Cycles Max. MSL 1, Lead Finish Ag 

|**DEVELOPED FREQUENCIES**|**DEVELOPED FREQUENCIES**|
|---|---|
|Abbreviation|Frequency (MHZ)|
|036|3.6864|
|040|4.000|
|060|6.000|
|073|7.3728|
|080|8.000|
|100|10.000|
|110.5|11.0592|
|120|12.000|
|122.8|12.288|
|143|14.31818|
|147.4|14.7456|
|160|16.000|
|184|18.432|
|200|20.000|
|240|24.000|
|250|25.000|



_**Figure 1)** Suggested Reflow Profile_