# Crystal, FKFSX Series, 32.768 kHz, 20 ppm, 0.04 ppm, 12.5 pF

![Product image](https://novapart.co/image/farnell:4138623/)

**URL**: https://novapart.co/products/FKFSXEIHM0.032768-T3/crystal-fkfsx-series-32768-khz-20-ppm-004-125-pf
**SKU**: FKFSXEIHM0.032768-T3
**Manufacturer**: FOX ELECTRONICS
**Category**: Crystals & Oscillators || Crystals
**Price**: €0.7210
**Stock**: 10+
**Lead Time**: 148 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | Lead (25-Jun-2025) |
| Frequency Nom | 32.768kHz |
| Product Range | FKFSX Series |
| Load Capacitance | 12.5pF |
| Crystal Frequency | 32.768kHz |
| Crystal Case / Package | SMD, 7mm x 1.5mm |
| Frequency Stability + / - | 0.04ppm |
| Frequency Tolerance + / - | 20ppm |
| Operating Temperature Max | 85°C |
| Operating Temperature Min | -40°C |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4138623/)

FKFSX (Former FSXLF) 

**7mm x 1.5mm SMD Tuning Fork Crystal** 

|**STANDARD SPECIFICATIONS**|**STANDARD SPECIFICATIONS**|
|---|---|
|**PARAMETERS**|**MAX(Unless otherwise noted)**|
|FrequencyRange|32.768 kHz|
|FrequencyTolerance@25°C|(See options below)|
|Frequency Stability, ref 25°C<br>(Temperature Coefficient)|-0.04 PPM/ (∆°C)2|
|Temperature Range<br>Turnover  (TO)<br>Operating (TOPR)<br>Storage(TSTG)|+20°C ~ +30°C<br>-40°C ~ +85°C<br>-55°C ~ +125°C|
|Equivalent Series Resistance(RS)|65 kΩ|
|Load Capacitance(CL)|(See options below)|
|Insulation Resistance@100VDC|500MΩ Min|
|Drive Level|1.0µW|
|Aging peryear(@25°C)|±3 PPM|
|Maximum SolderingTemp /Time|260°C/10 Seconds|
|Moisture Sensitivity Level (MSL) per<br>J-STD-033|1|
|Termination Finish|Matte Sn|
|Lead(Pb)Free|Exemption 7a|
|RoHS Compliant|Yes|
|REACH Compliance|Notification of Lead (Pb)<br>>0.1%(w/w)|



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DIMENSIONS / MECHANICAL<br>SPECIFICATIONS<br>Dimensions (mm)<br>**----- End of picture text -----**<br>


## **Temperature Coefficient** 

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0<br>-20<br>-40<br>-60<br>-80<br>ppm<br>-100<br>-120<br>-140<br>-160<br>-180<br>-40-30-20-10 0 10 20 30 40 50 60 70 80<br>°C<br>**----- End of picture text -----**<br>


**RoHS EXEMPTION 7a** : _High Temperature solder (>85% Pb) in crystal seal_ 

Note: Dimensional drawing is for reference to critical specifications defined by size measurements. Certain non-critical visual attributes, such as side castellations, etc. may vary. 

Revised A: 02/03/2020 

Page 1 of 2 

www.foxonline.com 

**7mm x 1.5mm** FKFSX (Former FSXLF) **SMD Tuning Fork Crystal** ~~rex~~ **TAPE SPECIFICATIONS (mm) REEL SPECIFICATIONS (mm) A B C D E F REEL QTY G H I J K L M** ~~a~~ Ø1.55 4.0 4.0 7.5 16.0 1.6 -T3 = 3,000 2.0 Ø13 Ø21 Ø50 Ø180 17.0 2.2 PLL Ht iste **Available Options Optionsptions & Part Identification for SMD Tuning Fork Crystal FKFSX Identification for SMD Tuning Fork Crystal FKFSXdentification for SMD Tuning Fork Crystal FKFSX** 

**Available Options Optionsptions & Part Identification for SMD Tuning Fork Crystal FKFSX Identification for SMD Tuning Fork Crystal FKFSXdentification for SMD Tuning Fork Crystal FKFSX Sample PN: FKFSXEIHM0.032768-T3 F KFSX E I H M 0.032768 -T3 Fox Model Tolerance Stability Load Operating Frequency Values Added Number E = ±20ppm I = -0.04 PPM/ Capacitance Temperature (MHz) Options (** ∆ **°C)[2]** V = 7pF **M = -40 ~ +85°C** Blank = Bulk **H = 12.5pF** T3 = 3,000 pcs ~~ial~~ **Reliability Test Conditions** ~~a~~ Please contact Abracon Quality Assurance department 

Revised A: 02/03/2020 

Page 2 of 2 

www.foxonline.com 



## Links

- [View this product on Novapart](https://novapart.co/products/FKFSXEIHM0.032768-T3/crystal-fkfsx-series-32768-khz-20-ppm-004-125-pf)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/fox-electronics/fkfsxeihm0-032768-t3/crystal-32-768khz-12-5pf-7mm-x/dp/4138623)
---

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