# Crystal, FKFSR Series, 32.768 kHz, 20 ppm, 0.04 ppm, 6 pF

![Product image](https://novapart.co/image/farnell:4327409RL/)

**URL**: https://novapart.co/products/FKFSREIBM0.032768-T3/crystal-fkfsr-series-32768-khz-20-ppm-004-6-pf
**SKU**: FKFSREIBM0.032768-T3
**Manufacturer**: ABRACON
**Category**: Crystals & Oscillators || Crystals
**Price**: €0.6000
**Stock**: 1000+
**Lead Time**: 148 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | Lead (04-Feb-2026) |
| Frequency Nom | 32.768kHz |
| Product Range | FKFSR Series |
| Load Capacitance | 6pF |
| Crystal Frequency | 32.768kHz |
| Crystal Case / Package | SMD, 8.7mm x 3.8mm |
| 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:4327409RL/)

**8.7mm x 3.8mm** 

**SMD Tuning Fork Crystal** 

## FKFSR (Former FSRLF) 

|**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)|50 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)|



**DIMENSIONS / MECHANICAL SPECIFICATIONS Dimensions (mm)** 

## **Temperature Coefficient** 

**==> picture [222 x 197] intentionally omitted <==**

**----- Start of picture text -----**<br>
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: 02/03/2019 

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## FKFSR (Former FSRLF) 

## **8.7mm x 3.8mm** 

## **SMD Tuning Fork Crystal** 

|**TAPE SPECIFICATIONS(mm)**|**TAPE SPECIFICATIONS(mm)**|**TAPE SPECIFICATIONS(mm)**|**TAPE SPECIFICATIONS(mm)**|**TAPE SPECIFICATIONS(mm)**|**TAPE SPECIFICATIONS(mm)**|**TAPE SPECIFICATIONS(mm)**|**REEL SPECIFICATIONS(mm)**|**REEL SPECIFICATIONS(mm)**|**REEL SPECIFICATIONS(mm)**|**REEL SPECIFICATIONS(mm)**|**REEL SPECIFICATIONS(mm)**|**REEL SPECIFICATIONS(mm)**|**REEL SPECIFICATIONS(mm)**|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|**A**|**B**|**C**|**D**|**E**|**F**|**REEL QTY**|**G**|**H**|**I**|**J**|**K**|**L**|**M**|
|Ø1.55|4.0|8.0|7.5|16.0|2.7|-T3 = 3,000|2.0|Ø13|Ø21|Ø50|Ø330|16.4|2.0|



## **Available Options & Part Identification for SMD Tuning Fork Crystal KFSR Sample PN: FKFSREIHM0.032768-T3** 

|**F**|**KFSR**|**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**|B = 6pF|**M = -40 ~ +85°C**||Blank = Bulk|
|||||**H = 12.5pF**|||T3 = 3,000 pcs|



**Reliability Test Conditions** ~~————~~ Please contact Abracon Quality Assurance department 

Revised A: 02/03/2019 

Page 2 of 2 

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## Links

- [View this product on Novapart](https://novapart.co/products/FKFSREIBM0.032768-T3/crystal-fkfsr-series-32768-khz-20-ppm-004-6-pf)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/abracon/fkfsreibm0-032768-t3/xtal-32-768khz-6pf-smd-8-7mm-x/dp/4327409RL)
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