ECS-500-8-47B-CWY-TR

## **ECX-1247B SMD CRYSTAL** 

The sub miniature ECX-1247B is a very compact SMD Crystal. The 1.6 x 1.2 x 0.3 mm ceramic package is ideal for RFID, NFC, WiFi, RF, Video, and Audio applications. 

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ECX-1247B SMD CRYSTAL<br>**----- End of picture text -----**<br>


- Low 1[st] Year Aging 

- 1.6 x 1.2 mm Footprint 

- Extended Temp. Range Option 

- RoHS Compliant 

## **DIMENSIONS (mm)** 

## **OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS** 

|**PARAMETERS**|**CONDITIONS**|**ECX-1247B**|**ECX-1247B**|**ECX-1247B**|**UNITS**|
|---|---|---|---|---|---|
|||**MIN**|**TYP**|**MAX**||
|Frequency||24.000||80.000|MHz|
|Mode of Oscillation|Fundamental|||||
|FrequencyTolerance*<br>~~a~~|@ +25°C<br>~~Gs~~|~~I~~|~~I~~|± 7|ppm|
|Frequency Stability*<br>~~a~~<br>~~a~~|-20 ~ +70°C<br>~~Gs~~<br>~~Gs I~~|~~I~~<br>~~I~~|~~I~~<br>~~I~~|± 10<br>~~I~~|ppm|
|Shunt Capacitance<br>~~a~~<br>~~es~~<br>~~a~~<br>~~ee~~|Co<br>~~Gs ~~<br>~~es~~<br>~~Gs I~~<br>~~Ge~~<br>|~~I ~~<br>~~es~~<br>~~I~~<br>|~~I~~<br>~~es~~<br>~~I~~|5<br>~~es~~<br>~~I~~|pF<br>~~es~~|
|Load Capacitance<br>~~a~~<br>~~ee~~|Specifyin P/N<br>~~Gs I~~<br>~~Ge~~<br>|~~I~~<br>|8<br>~~I~~|~~I~~|pF|
|Drive Level<br>~~ee~~<br>~~ee~~|DL<br>~~Ge~~<br>~~**Gn**~~|~~**Gn**~~||100|μW|
|Operating Temperature*<br>~~ee~~<br>~~ee~~<br>~~a~~|Topr<br>~~Ge~~<br>~~**Gn**~~<br>~~Ps~~|-40<br>~~**Gn**~~<br>~~Ge~~|~~ns~~|+85<br>~~ns~~|°C|
|Storage Temperature<br><br>~~ee~~<br>~~a~~<br>~~a~~|Tstg<br>~~**Gn**~~<br>~~Ps~~<br>~~Gs~~|-40<br>~~**Gn**~~<br>~~Ge~~<br>~~es~~|~~ns~~|+125<br>~~ns~~|°C|
|Aging (First Year)<br>~~a~~<br>~~a~~|@ +25°C ±3°C<br>~~Ps ~~<br>~~Gs~~|~~Ge~~<br>~~es~~|~~ns~~|±1<br>~~ns~~|ppm|



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

Crystal is symmetrical, pad 1 & 3 are interchangeable. Chamfer on the bottom pad has no electrical significance. 

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Frequency (MHz)         ESR Ω Max.<br>24.000 ~ 29.999  100<br>30.000 ~ 48.999  80<br>49.000 ~ 80.000  50<br>Pad Connections<br>1  In/Out  i \E<br>2  Gnd<br>3  Out/In  a<br>4  Gnd<br>== “ =<br>Figure 2)  Suggested land<br>**----- End of picture text -----**<br>


## **PART NUMBERING GUIDE:  Example ECS-320-8-47B-7KM-TR** 

**ECS -  FREQUENCY ABBREVIATION LOAD PACKAGE AVAILABLE OPTIONS PACKAGING CAPACITANCE** Tolerance           Stability                 Temp Range ECS 320 = 32.000  MHz 8 = 8 pF -47B = Blank = Std Blank= Std Blank= Std TR = See P/N Guide S=Series ECX-1247B A = ± 25 ppm D= ±100 ppm L =   -10 ~ +70°C Tape J = ± 20 ppm E = ± 50 ppm M = -20 ~ +70°C & Reel R = ± 15 ppm G = ± 30 ppm Y  =  -30 ~ +85°C C = ± 10 ppm H = ± 25 ppm N =  -40 ~ +85°C 1K/Reel * Specify available options in P/N. 7 = ± 7 ppm T = ± 20 ppm † P =  -40 ~ +105°C W = ±15 ppm † S =  -40 ~ +125°C ~~“IO~~ † Contact ECS for availability over extended temp range. K = ± 10 ppm † E ~~E~~ Rev.2019 

## **ECX-1247B SMD CRYSTAL** 

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

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|**SOLDER PROFILE**||||||
|---|---|---|---|---|---|
|||||||
|Peak solder Temp+260°C Max 10 sec Max.|+260°C Max 10 sec Max.|+260°C Max 10 sec Max.||**DEVELOPED FREQUENCIES**||
|2 Cycles Max.||||Abbreviation|Frequency (MHZ)|
|MSL 1,Lead Finish Au||||240|24.000|
|||||245.7|24.576|
|||||260|26.000|
||:|»<br>101 sec.||320|32.000|
|+260“CPeak_——>||||360|36.000|
|||||400|40.000|
|+220 °C||||480|48.000|
|||||500|50.000|



_**Figure 1)** Suggested Reflow Profile_