ECS-.327-12.5-1210B-N-TR

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The ultra-miniature 4-Pad ECX-1210B is a very compact SMD Tuning Fork Crystal. The 1.2 x 1.0 x 0.35 mm ceramic package is the smallest in it’s class. This is very popular with small wearables and medical devices. 

## **ECX-1210B 32.768 KHz SMD Tuning Fork Crystal** 

## **Request a Sample** en 

## **ECX-1210B SMD CRYSTAL** 

- Low Power RTC Applications such as STM32 AN2867 

- • 1.2 x 1.0 mm Footprint ~~_~~ 

- Extended Temp. Range 

- RoHS Compliant 

- Applications:  Smartphones, wireless modules, wearable devices 

## **DIMENSIONS (mm)** 

## **OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS** 

|**PARAMETERS**|**CONDITIONS**|**ECX-1210B**|**ECX-1210B**|**ECX-1210B**|**UNITS**|
|---|---|---|---|---|---|
||~~es ee~~|**MIN**<br>~~ee~~|**TYP**|**MAX**||
|Frequency<br>~~ee~~|~~ee~~<br>~~es ee~~<br>~~es es~~|~~ee~~<br>~~ee~~<br>~~es~~|32.768<br>~~ee~~|~~ee~~|KHz<br>~~ee~~|
|Frequency Tolerance*<br>~~es~~|@ +25°C<br>~~es ee~~<br>~~es~~<br>~~es es~~|~~ee~~<br>~~es~~<br>~~es~~|~~es~~|± 20<br>~~es~~|ppm<br>~~es~~|
|Load Capacitance<br>~~ee~~|Specifyin P/N<br>~~es es~~<br>~~ee~~<br>~~es~~|~~es~~<br>~~ee~~<br>~~es~~|12.5<br>~~ee~~|~~ee~~|pF<br>~~ee~~|
|Drive Level<br>~~ee~~|DL<br>~~ee~~<br>~~es~~<br>~~es~~|~~ee~~<br>~~es~~<br>~~es~~|~~ee~~|1.0<br>~~ee~~|μW<br>~~ee~~|
|Equivalent Series Resistance<br>~~ee~~|R1<br>~~es~~<br>~~ee~~<br>~~es~~<br>~~ed~~|~~es~~<br>~~ee~~<br>~~es~~<br>~~es~~|~~ee~~|80K<br>~~ee~~|Ω<br>~~ee~~|
|Turnover Temperature<br>~~es~~|~~es~~<br>~~es~~<br>~~ed~~<br>~~**Se**~~|+20<br>~~es~~<br>~~es~~<br>~~es~~<br>~~**ee**~~|+25<br>~~es~~<br>~~**ee**~~|+30<br>~~es~~|°C<br>~~es~~|
|Temperature Coefficient<br>~~rs~~|~~ed ~~<br>~~rs~~<br>~~**Se**~~|-0.02<br> ~~es~~<br>~~rs~~<br>~~**ee**~~|-0.03<br>~~rs~~<br>~~**ee**~~|-0.04<br>~~rs~~|ppm/°C²<br>~~rs~~|
|Shunt Capacitance<br>~~rs~~|Co<br>~~**Se**~~<br>~~rs~~|~~**ee**~~<br>~~rs~~|1.5<br>~~**ee**~~<br>~~rs~~|~~rs~~|pF<br>~~rs~~|
|Aging(First Year)<br>~~ee~~|@ +25°C ±3°C<br>~~**Se**~~<br>~~ee~~<br>~~es~~|~~**ee**~~<br>~~ee~~<br>~~es~~|~~**ee**~~<br>~~ee~~|±3<br>~~ee~~|ppm<br>~~ee~~|
|Operating Temperature*<br>~~ee~~|Topr<br>~~ee~~<br>~~es~~<br>~~es~~|-40<br>~~ee~~<br>~~es~~<br>~~es~~|~~ee~~<br>~~es~~|+105<br>~~ee~~<br>~~es~~|°C<br>~~ee~~|
|Storage Temperature<br>~~es~~|Tstg<br>~~es~~<br>~~es~~<br>~~es~~|-40<br>~~es~~<br>~~es~~<br>~~es~~|~~es~~<br>~~es~~|+105<br>~~es~~<br>~~es~~|°C<br>~~es~~|



***** Specify options in part number 

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

**PAD CONNECTIONS** #1 In/Out #2 Ground #3 Out/In #4 No Connect 

_**Figure 2)** Suggested Land Pattern_ 

## **PART NUMBERING GUIDE:  Example ECS-.327-12.5-1210B-CN-TR** 

|**ECS -  FREQUENCY ABBREVIATION**|**ECS -  FREQUENCY ABBREVIATION**|**ECS -  FREQUENCY ABBREVIATION**|**ECS -  FREQUENCY ABBREVIATION**||**LOAD**|||**PACKAGE**|**CUSTOM OPTIONS**|**CUSTOM OPTIONS**|**CUSTOM OPTIONS**|**CUSTOM OPTIONS**|**CUSTOM OPTIONS**|**PACKAGING**|**PACKAGING**|**PACKAGING**|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
||||||**CAPACITANCE**||||||Tolerance|Tolerance|Tolerance|Tolerance<br>Operating Temp|||
||||||||||||||||||
|ECS||.327 = 32.768  KHz|||12.5 = 12.5 pF|||-1210B = ECX-1210B|||Blank = ±20 ppm|||M = -20 ~ +70°C||TR = Tape|
||||||9 = 9 pF||||||* C = ± 10 ppm|||N = -40 ~ +85°C||& Reel|
||||||7 = 7 pF|||||||||P = -40 ~ +105°C||5K/Reel|
||||||6 = 6 pF||||||||||||



* Contact ECS for availability 

Rev.2020 

**32.768 KHz SMD Tuning Fork Crystal** 

## RoHS 

## **ECX-1210B** 

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

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**SOLDER PROFILE** Peak solder Temp +260°C Max 10 sec Max. 2 Cycles Max. MSL 1, Lead Finish Au : (°C) +260 °CPeak_~— +220 °C 2 #170210 °C Ee 

_**Figure 1)** Suggested Reflow Profile_