ECS-.327-12.5-17X-TR

## **ECX-306X SMD CRYSTAL** 

The ECX-306X is a compact SMD Tuning Fork Crystal.  The 3.8 x 8.0 x 2.5 mm package is ideal for communications and measuring equipment. 

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## **ECX-306X SMD CRYSTAL** 

- Low Profile 

- Long Term Stability 

- Industry Standard Footprint 

- Extended Temp. Range 

- RoHS Compliant 

- Low Power RTC Applications such as STM32 AN2867 

## **DIMENSIONS (mm)** 

## **OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS** 

|**PARAMETERS**|**CONDITIONS**|**ECX-306X**|**ECX-306X**|**ECX-306X**|**UNITS**|
|---|---|---|---|---|---|
||~~ee~~|**MIN**<br>~~ee~~|**TYP**<br>~~ee~~|**MAX**<br>~~ee~~||
|Frequency<br>~~ee~~|Fo<br>~~ee~~<br>~~ee~~<br>~~ee~~|~~ee~~<br>~~ee~~<br>~~es ee~~|32.768<br>~~ee~~<br>~~ee~~<br>~~ee~~|~~ee~~<br>~~ee~~<br>~~ee~~|KHz<br>~~ee~~|
|Frequency Tolerance<br>~~ee~~|@ +25°C<br>~~ee ~~<br>~~ee~~<br>~~ee~~<br>~~es~~|~~ee~~<br>~~ee~~<br>~~es ee~~<br>~~ees~~|~~ee~~<br>~~ee~~<br>~~ee~~<br>~~es ee~~|± 20 *<br>~~ee~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|ppm<br>~~ee~~|
|Load Capacitance<br>~~ee~~|Specifyin P/N<br>~~ee~~<br>~~ee~~<br>~~es~~<br>~~ee~~|~~es ee~~<br>~~ee~~<br>~~ees~~<br>~~es~~|12.5<br>~~ee~~<br>~~ee~~<br>~~es ee~~<br>~~es~~|~~ee~~<br>~~ee~~<br>~~ee~~|pF<br>~~ee~~|
|Drive Level<br>~~es~~|DL<br>~~es ~~<br>~~es~~<br>~~ee~~<br>~~ees~~|~~ees~~<br>~~es~~<br>~~es~~<br>~~es~~|~~es ee~~<br>~~es~~<br>~~es~~<br>~~es~~|1.0<br>~~ee~~<br>~~es~~|μW<br>~~es~~|
|Equivalent Series Resistance<br>~~es~~|R1<br>~~ee~~<br>~~es~~<br>~~ees~~<br>~~eee~~|~~es ~~<br>~~es~~<br>~~es~~<br>~~es~~|~~es~~<br>~~es~~<br>~~es~~<br>~~es~~|50K<br>~~es~~|Ω<br>~~es~~|
|Turnover Temperature<br>~~es~~|~~ees~~<br>~~es~~<br>~~eee~~<br>~~ee~~|+20<br>~~es~~<br>~~es~~<br>~~es~~<br>~~es~~|+25<br>~~es~~<br>~~es~~<br>~~es~~|+30<br>~~es~~|°C<br>~~es~~|
|Temperature Coefficient<br>~~es~~|~~eee~~<br>~~es~~<br>~~ee~~<br>~~ee~~|-0.028<br>~~es~~<br>~~es~~<br>~~es~~<br>~~es~~|-0.034<br>~~es~~<br>~~es~~|-0.040<br>~~es~~|ppm/°C2<br>~~es~~|
|Shunt Capacitance<br>~~es~~|Co<br>~~ee ~~<br>~~es~~<br>~~ee~~<br>~~ees~~|~~es~~<br>~~es~~<br>~~es~~<br>~~es~~|1.35<br>~~es~~<br>~~es~~|~~es~~<br>~~es~~|pF<br>~~es~~|
|Aging(First Year)<br>~~es~~|@ +25°C ±3°C<br>~~ee ~~<br>~~es~~<br>~~ees~~<br>~~eee~~|~~es~~<br>~~es~~<br>~~es~~<br>~~es~~|~~es~~<br>~~es~~<br>~~ee~~|±3<br>~~es~~<br>~~es~~|ppm<br>~~es~~|
|Operating Temperature<br>~~es~~|Topr<br>~~ees ~~<br>~~es~~<br>~~eee~~<br>~~eee~~|-40<br> ~~es ~~<br>~~es~~<br>~~es~~<br>~~es~~|~~es~~<br>~~es~~<br>~~ee~~<br>~~ee~~|+85<br>~~es~~<br>~~es~~|°C<br>~~es~~|
|Storage Temperature<br>~~es~~|Tstg<br>~~eee~~<br>~~es~~<br>~~eee~~<br>~~ee~~|-55<br>~~es~~<br>~~es~~<br>~~es~~<br>~~es~~|~~ee~~<br>~~es~~<br>~~ee~~|+125<br>~~es~~|°C<br>~~es~~|
|Insulation Resistance<br>~~es~~<br>~~es~~|@ 100V DC<br>~~es~~<br>~~eee~~<br>~~es~~<br>~~ee~~|500M<br>~~es~~<br>~~es~~<br>~~es~~<br>~~es~~|~~es~~<br>~~ee~~<br>~~es~~|~~es~~<br>~~es~~|Ω<br>~~es~~<br>~~es~~|



_**Figure 2)** Suggested Land Pattern_ 

_**Figure 1)** Top, Side, and End views_ 

## **PART NUMBERING GUIDE:  Example ECS-.327-12.5-17X-TR** 

|**ECS -  FREQUENCY ABBREVIATION**|**ECS -  FREQUENCY ABBREVIATION**|**ECS -  FREQUENCY ABBREVIATION**|**ECS -  FREQUENCY ABBREVIATION**||**LOAD**|||**PACKAGE**|||**CUSTOM OPTIONS**||**PACKAGING**|**PACKAGING**|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
||||||**CAPACITANCE**||||||Tolerance|Tolerance|Tolerance||
||||||||||||||||
|ECS||.327 = 32.768  KHz|||12.5 = 12.5 pF|||17X = ECX-306X|||Blank (Std) = ±20 ppm|||TR = Tape|
||||||9 = 9 pF||||||* C = ± 10 ppm|||& Reel|
||||||7 = 7 pF|||||||||3K/Reel|
||||||6 = 6 pF||||||||||



*Contact ECS for availability 

Rev.2020 

## RoHS **ECX-306X** COMPLIANT **SMD CRYSTAL** 

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

ATE TOT eR [Do |rea ras [ao [eo] 75 [eo 16 [0s [ar | 30 | Sots 

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

_**Figure 1)** Suggested Reflow Profile_