# Crystal, ECX-71 Series, 32.768 kHz, 20 ppm, 12.5 pF

![Product image](https://novapart.co/image/farnell:4230245/)

**URL**: https://novapart.co/products/ECS-.327-12.5-38-TR/crystal-ecx-71-series-32768-khz-20-ppm-125-pf
**SKU**: ECS-.327-12.5-38-TR
**Manufacturer**: ECS INC INTERNATIONAL
**Category**: Crystals & Oscillators || Crystals
**Price**: €0.3040
**Stock**: 10+
**Lead Time**: 78 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| Frequency Nom | 32.768kHz |
| Product Range | ECX-71 Series |
| Load Capacitance | 12.5pF |
| Crystal Frequency | 32.768kHz |
| Crystal Case / Package | SMD, 7mm x 1.5mm |
| Frequency Stability + / - | - |
| Frequency Tolerance + / - | 20ppm |
| Operating Temperature Max | 85°C |
| Operating Temperature Min | -40°C |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4230245/)

## RoHS 

The miniature ECX-71 is a very compact SMD Tuning Fork Crystal.   The 7 x 1.5 x 1.4 mm plastic package is ideal for commercial and industrial applications. 

## **ECX-71 SMD CRYSTAL** 

**Request a Sample** 

## **OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS** 

|**PARAMETERS**|**CONDITIONS**|**ECX-71**|**ECX-71**|**ECX-71**|**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~~|0.1<br>~~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~~|65K<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~~|-0.025<br>~~es~~<br>~~es~~<br>~~es~~<br>~~es~~|-0.035<br>~~es~~<br>~~es~~|-0.045<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~~|0.8<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>~~ee~~|-40<br> ~~es ~~<br>~~es~~<br>~~es~~<br>~~es~~|~~es~~<br>~~es~~<br>~~ee~~|+85<br>~~es~~<br>~~es~~|°C<br>~~es~~|
|Storage Temperature<br>~~es~~|Tstg<br>~~eee~~<br>~~es~~<br>~~ee~~|-55<br>~~es~~<br>~~es~~<br>~~es~~|~~ee~~<br>~~es~~|+125<br>~~es~~|°C<br>~~es~~|



## **DIMENSIONS (mm)** 

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

|#40<br>S<br>eee tS|#40<br>S<br>eee tS|
|---|---|
|**PAD CONNECTIONS**<br>~~#2~~<br>NC)||
|1|In/Out|
|4|Out/In|



_**Figure 2)** Suggested Land Pattern_ 

## **PART NUMBERING GUIDE:  Example ECS-.327-12.5-38-TR** 

**==> picture [493 x 88] intentionally omitted <==**

**----- Start of picture text -----**<br>
ECS -  FREQUENCY ABBREVIATION      LOAD       PACKAGE   PACKAGING<br>CAPACITANCE<br>ECS .327 = 32.768  KHz  12.5 = 12.5 pF  -38 = ECX-71 TR = Tape<br>9 = 9 pF  & Reel<br>7 = 7 pF  3K/Reel<br>6 = 6 pF<br>**----- End of picture text -----**<br>


Rev.2017 

## [= S **ECX-71 SMD CRYSTAL** 

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

**==> picture [276 x 17] intentionally omitted <==**

**----- Start of picture text -----**<br>
raTe[e[o[F]v<br>**----- End of picture text -----**<br>


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

_**Figure 1)** Suggested Reflow Profile_ 



## Links

- [View this product on Novapart](https://novapart.co/products/ECS-.327-12.5-38-TR/crystal-ecx-71-series-32768-khz-20-ppm-125-pf)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/ecs-inc-international/ecs-327-12-5-38-tr/xtal-32-768khz-12-5pf-smd-7mm/dp/4230245)
---

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