# Crystal, ECX-306X Series, 32.768 kHz, 10 ppm, 6 pF

![Product image](https://novapart.co/image/farnell:4230251RL/)

**URL**: https://novapart.co/products/ECS-.327-6-17X-C-TR/crystal-ecx-306x-series-32768-khz-10-ppm-6-pf
**SKU**: ECS-.327-6-17X-C-TR
**Manufacturer**: ECS INC INTERNATIONAL
**Category**: Crystals & Oscillators || Crystals
**Price**: €0.3250
**Stock**: 100+
**Lead Time**: 92 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| Frequency Nom | 32.768kHz |
| Product Range | ECX-306X Series |
| Load Capacitance | 6pF |
| Crystal Frequency | 32.768kHz |
| Crystal Case / Package | SMD, 8mm x 3.8mm |
| Frequency Stability + / - | - |
| Frequency Tolerance + / - | 10ppm |
| Operating Temperature Max | 85°C |
| Operating Temperature Min | -40°C |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4230251RL/)

## **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. 

**==> picture [62 x 8] intentionally omitted <==**

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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_ 



## Links

- [View this product on Novapart](https://novapart.co/products/ECS-.327-6-17X-C-TR/crystal-ecx-306x-series-32768-khz-10-ppm-6-pf)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/ecs-inc-international/ecs-327-6-17x-c-tr/xtal-32-768khz-6pf-smd-8mm-x-3/dp/4230251RL)
---

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