# Crystal, ECX-1210B Series, 32.768 kHz, 20 ppm, 6 pF
**URL**: https://novapart.co/products/ECS-.327-6-1210B-N-TR/crystal-ecx-1210b-series-32768-khz-20-ppm-6-pf
**SKU**: ECS-.327-6-1210B-N-TR
**Manufacturer**: ECS INC INTERNATIONAL
**Category**: Crystals & Oscillators || Crystals
**Price**: €0.8790
**Stock**: 1000+
**Lead Time**: 218 days (indicative)
## Specifications
| Parameter | Value |
|---|---|
| Svhc | No SVHC (04-Feb-2026) |
| Frequency Nom | 32.768kHz |
| Product Range | 0 |
| Load Capacitance | 6pF |
| Crystal Frequency | 32.768kHz |
| Crystal Case / Package | SMD, 1.2mm x 1mm |
| Frequency Stability + / - | - |
| Frequency Tolerance + / - | 20ppm |
| Operating Temperature Max | 85°C |
| Operating Temperature Min | -40°C |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:4059391/)
**==> picture [67 x 23] intentionally omitted <==**
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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**
~~ee~~|**TYP**|**MAX**||
|Frequency
~~ee~~|~~ee~~
~~es ee~~
~~es es~~|~~ee~~
~~ee~~
~~es~~|32.768
~~ee~~|~~ee~~|KHz
~~ee~~|
|Frequency Tolerance*
~~es~~|@ +25°C
~~es ee~~
~~es~~
~~es es~~|~~ee~~
~~es~~
~~es~~|~~es~~|± 20
~~es~~|ppm
~~es~~|
|Load Capacitance
~~ee~~|Specifyin P/N
~~es es~~
~~ee~~
~~es~~|~~es~~
~~ee~~
~~es~~|12.5
~~ee~~|~~ee~~|pF
~~ee~~|
|Drive Level
~~ee~~|DL
~~ee~~
~~es~~
~~es~~|~~ee~~
~~es~~
~~es~~|~~ee~~|1.0
~~ee~~|μW
~~ee~~|
|Equivalent Series Resistance
~~ee~~|R1
~~es~~
~~ee~~
~~es~~
~~ed~~|~~es~~
~~ee~~
~~es~~
~~es~~|~~ee~~|80K
~~ee~~|Ω
~~ee~~|
|Turnover Temperature
~~es~~|~~es~~
~~es~~
~~ed~~
~~**Se**~~|+20
~~es~~
~~es~~
~~es~~
~~**ee**~~|+25
~~es~~
~~**ee**~~|+30
~~es~~|°C
~~es~~|
|Temperature Coefficient
~~rs~~|~~ed ~~
~~rs~~
~~**Se**~~|-0.02
~~es~~
~~rs~~
~~**ee**~~|-0.03
~~rs~~
~~**ee**~~|-0.04
~~rs~~|ppm/°C²
~~rs~~|
|Shunt Capacitance
~~rs~~|Co
~~**Se**~~
~~rs~~|~~**ee**~~
~~rs~~|1.5
~~**ee**~~
~~rs~~|~~rs~~|pF
~~rs~~|
|Aging(First Year)
~~ee~~|@ +25°C ±3°C
~~**Se**~~
~~ee~~
~~es~~|~~**ee**~~
~~ee~~
~~es~~|~~**ee**~~
~~ee~~|±3
~~ee~~|ppm
~~ee~~|
|Operating Temperature*
~~ee~~|Topr
~~ee~~
~~es~~
~~es~~|-40
~~ee~~
~~es~~
~~es~~|~~ee~~
~~es~~|+105
~~ee~~
~~es~~|°C
~~ee~~|
|Storage Temperature
~~es~~|Tstg
~~es~~
~~es~~
~~es~~|-40
~~es~~
~~es~~
~~es~~|~~es~~
~~es~~|+105
~~es~~
~~es~~|°C
~~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
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_
## Links
- [View this product on Novapart](https://novapart.co/products/ECS-.327-6-1210B-N-TR/crystal-ecx-1210b-series-32768-khz-20-ppm-6-pf)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/ecs-inc-international/ecs-327-6-1210b-n-tr/crystal-32-768khz-smd-1-2mmx1mm/dp/4059391)
---
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