ECS-.327-12.5-16-TR3

## RoHS 

The miniature ECX-16 is a very compact SMD Tuning Fork Crystal perfect for LoRa Wan technology.  Low ESR part recommended by STMicroelectronics for the STM32 Microcontrollers. 

**ECX-16 32.768 KHz SMD Tuning Fork Crystal Request a Sample** —) 

## **OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS** 

|**PARAMETERS**|**CONDITIONS**|**ECX-16**|**ECX-16**|**ECX-16**|**UNITS**|
|---|---|---|---|---|---|
|||**MIN**|**TYP**|**MAX**||
|Frequency<br>~~es~~|~~es~~|~~es~~|32.768<br>~~es~~|~~es~~|KHz<br>~~es~~|
|Frequency Tolerance|@ +25°C|||± 20 *|ppm|
|Load Capacitance|Specifyin P/N||12.5||pF|
|Drive Level|DL|||0.5|μW|
|Equivalent Series Resistance<br>~~es~~<br>~~a~~|R1<br>~~es~~<br>|~~es~~<br>|~~es~~<br>|90K<br>~~es~~<br>|Ω<br>~~es~~<br>|
|Motional Capacitance<br>~~a~~|||6.5<br>||fF<br>|
|Turnover Temperature<br>~~aes~~|~~es~~|+20<br>~~es~~|+25<br>~~es~~|+30<br>~~es~~|°C<br>~~es~~|
|Temperature Coefficient<br>~~es~~|~~es~~|-0.02<br>~~es~~|-0.03<br>~~es~~|-0.040<br>~~es~~|ppm/°C²<br>~~es~~|
|Shunt Capacitance<br> ~~es~~<br>~~ee~~|Co<br>~~es~~<br>~~ee~~|~~es~~<br>~~ee~~|1.3<br>~~es~~<br>~~ee~~|~~es~~<br>~~ee~~|pF<br>~~es~~<br>~~ee~~|
|Aging (First Year)<br>~~es~~|@ +25°C ±3°C<br>~~es~~|~~es~~|~~es~~|±3<br>~~es~~|ppm<br>~~es~~|
|Operating Temperature<br>~~es~~|Topr<br>~~es~~<br>~~ee~~|-40<br>~~es~~<br>~~es~~|~~es~~<br>~~es~~|+85<br>~~es~~<br>~~es~~|°C<br>~~es~~|
|Storage Temperature<br>~~es~~|Tstg<br>~~es~~<br>~~ee~~|-55<br>~~es~~<br>~~es~~|~~es~~<br>~~es~~|+125<br>~~es~~<br>~~es~~|°C<br>~~es~~|



## **DIMENSIONS (mm)** 

|**PAD CONNECTIONS**|**PAD CONNECTIONS**|
|---|---|
|1|In/Out|
|2|Out/In|



_**Figure 2)** Suggested Land Pattern_ 

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

## **PART NUMBERING GUIDE:  Example ECS-.327-12.5-16-TR** 

|**ECS -  FREQUENCY ABBREVIATION**|**ECS -  FREQUENCY ABBREVIATION**|**ECS -  FREQUENCY ABBREVIATION**||**LOAD**|||**PACKAGE**||**CUSTOM OPTIONS**|**CUSTOM OPTIONS**|||**PACKAGING**|**PACKAGING**||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|||||**CAPACITANCE**|||||Tolerance (@+25°C) Max.|||Tolerance (@+25°C) Max.|Tolerance (@+25°C) Max.|||
|||||||||||||||||
|ECS||.327 = 32.768  KHz||12.5 = 12.5 pF<br>9 = 9 pF<br>7 = 7 pF|||-16 = ECX-16|||Blank = ±20 ppm<br>* C = ± 10 ppm<br>* 7 = ± 7 Max.|||TR = 5K/Reel<br>TR3 = 3K/Reel|||
|||||6 = 6 pF||||||||||||
|||||5 = 5 pF||||||||||||
|*Contact ECS for availability|*Contact ECS for availability|*Contact ECS for availability||||||||||||Rev.2021||



*Contact ECS for availability 

**ECX-16 32.768 KHz SMD Tuning Fork Crystal** 

## RoHS 

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

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

_**Figure 1)** Suggested Reflow Profile_