# Crystal, ECS-3X8X Series, 32.768 kHz, 20 ppm, 12.5 pF

![Product image](https://novapart.co/image/farnell:4230246/)

**URL**: https://novapart.co/products/ECS-.327-12.5-8X/crystal-ecs-3x8x-series-32768-khz-20-ppm-125-pf
**SKU**: ECS-.327-12.5-8X
**Manufacturer**: ECS INC INTERNATIONAL
**Category**: Crystals & Oscillators || Crystals
**Price**: €0.1960
**Stock**: 500+
**Lead Time**: 134 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (04-Feb-2026) |
| Frequency Nom | 32.768kHz |
| Product Range | ECS-3X8X Series |
| Load Capacitance | 12.5pF |
| Crystal Frequency | 32.768kHz |
| Crystal Case / Package | Cylinder Radial, 8.2mm x 3.1mm Dia |
| Frequency Stability + / - | - |
| Frequency Tolerance + / - | 20ppm |
| Operating Temperature Max | 60°C |
| Operating Temperature Min | -10°C |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4230246/)

## Rofe S 

**ECS-3X8X, 2X6X, 1X5X 32.768 KHz Tuning Fork Crystal** 

ECS tuning fork type crystals are used as a clock source in communication equipment, measuring instruments, microprocessors and other time management applications.  Their low power consumption makes these crystals ideal for portable equipment. 

**Request a Sample** 

## **OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS** 

|**PARAMETERS**<br>~~a~~|~~ee ee~~|**3X8X                   2X6X                 1X5X**<br>~~ee~~|**3X8X                   2X6X                 1X5X**<br>~~ee~~|**3X8X                   2X6X                 1X5X**<br>~~ee~~|**UNITS**|
|---|---|---|---|---|---|
|Frequency<br>~~a~~|FO<br>~~ee ee~~|32.768<br>~~ee~~|32.768|32.768|KHz|
|Frequency Tolerance<br>~~a~~|Δf/fo<br>~~ee ee~~|±20<br>~~ee~~|±20|± 20|ppm|
|Load Capacitance<br>~~a~~|CL<br>~~ee ee~~|12.5<br>~~ee~~|12.5|8.0|pF|
|Drive Level (max)<br>~~a~~|DL<br>~~ee ee~~|1<br>~~ee~~|1|1|μW|
|Resistance At Series Resonance<br>~~a~~|R1<br>~~ee ee~~|35(max)<br>~~ee~~|35(max)|40(max)|KΩ|
|Q-Factor<br> ~~a ~~|Q<br> ~~ee ee~~|90,000(typ.)<br>~~ee~~|70,000(typ.)|80,000(typ.)||
|Turnover Temperature|TM|+25 ±5|+25 ±5|+25 ±5|°C|
|Temperature Coefficient|ß|-0.040ppm/°C2<br>max.|-0.040ppm/°C2<br>max.|-0.040ppm/°C2<br>max.|PPM/ΔC°|
|Shunt Capacitance|CO|1.60 (typ.)|1.35 (typ.)|1.00 (typ.)|pF|
|Capacitance Ratio||460 (typ.)|450 (typ.)|400 (typ.)||
|Operating Temp|Topr|-10 ~ +60|||°C|
|Storage Temperature|Tstg|-40 ~ +85|||°C|
|Shock Resistance||Drop 3 times on hard wooden board from<br>height of 75cm/±5ppm max.|||PPM|
|Insulation Resistance|IR|500 MΩ min./DC100V|||MΩ|
|Aging (First Year)|Δf/fo|±3 ppm max. @ +25°C ±3°C|||ppm|
|Motional Capacitance|C1|0.0035(typ.)|0.0030(typ.)|0.0025(typ.)|pF|



- Cost Effective 

- Tight Tolerance 

- Long Term Stability 

- Excellent Resistance and Environmental Characteristics 

- Pb Free/RoHS Compliant 

## **DIMENSIONS (mm)** 

## **PART NUMBERING GUIDE:** 

|**Manufacturer**|**Manufacturer**|**Frequency**||**Load Capacitance**<br>**Package Type***|
|---|---|---|---|---|
|ECS                   -                    .327                   -               12.5                            -             8X|ECS                   -                    .327                   -               12.5                            -             8X|ECS                   -                    .327                   -               12.5                            -             8X|ECS                   -                    .327                   -               12.5                            -             8X|ECS                   -                    .327                   -               12.5                            -             8X|
|ECS                   -                    .327                   -               12.5                            -             13X|ECS                   -                    .327                   -               12.5                            -             13X|ECS                   -                    .327                   -               12.5                            -             13X|ECS                   -                    .327                   -               12.5                            -             13X|ECS                   -                    .327                   -               12.5                            -             13X|
|ECS                   -                    .327                   -               12.5                            -             14X|ECS                   -                    .327                   -               12.5                            -             14X|ECS                   -                    .327                   -               12.5                            -             14X|ECS                   -                    .327                   -               12.5                            -             14X|ECS                   -                    .327                   -               12.5                            -             14X|



* Package type examples (8X = 3x8, 13X = 2x6, 14X = 1x5) 

Rev.2017 

## RoHS **ECS-3X8X, 2X6X, 1X5X** COMPLIANT **32.768 KHz Tuning Fork Crystal** 

||**SOLDER PROFILE**|**SOLDER PROFILE**||
|---|---|---|---|
|Peak solder Temp+260°C Max 10 sec Max.||+260°C Max 10 sec Max.||
||2 Cycles Max.|||
|MSL 1,Lead Finish Sn|Lead Finish Sn/Cu Matte|||
|||:|1021|
||+260 °CPeak_———7|7|7|
||+220 °C|||
|#170410 °C||||
|||:||
|H|:|||
|>.120420sec.||||



_**Figure 1)** Suggested Solder Profile_ 



## Links

- [View this product on Novapart](https://novapart.co/products/ECS-.327-12.5-8X/crystal-ecs-3x8x-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-327-12-5-8x/xtal-32-768khz-12-5pf-8-2mm-x/dp/4230246)
---

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