E8WSDC12-32.768K TR

Crystal, ECS-2X6-FLX Series

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Manufacturer: ECLIPTEK
Product type: Resonators
Available until stocks are exhausted
SVHC: No SVHC (25-Jun-2025)
Frequency: 32.768kHz
No. of Pins: 2Pins
Product Range: ECS-2X6-FLX Series
Frequency Stability: -
Frequency Tolerance: ± 20ppm
Oscillator Mounting: SMD
Operating Temperature Max: 85°C
Operating Temperature Min: -40°C

Delivery and price
Units per pack	500
Price	1.34 €
Current stock	1000+
Lead time	7 days

Datasheet

## **E8WSDC12-32.768K TR** PART NUMBER DATA SHEET 

## **REGULATORY COMPLIANCE** 

## **(Data Sheet downloaded on Dec 15, 2019)** 

2011/65 + 2015/863 iy 191 SVHC 

## **ITEM DESCRIPTION** 

Watch Crystal Resonator 1.5mm x 3.2mm x 0.9mm 2 Pad Ceramic Surface Mount (SMD) 32.768KHz ±20ppm at 25°C -40°C to +85°C 12.5pF Parallel Resonant 

## **ELECTRICAL SPECIFICATIONS** 

|**Nominal Frequency**|32.768KHz|
|---|---|
|**Frequency Tolerance**|±20ppm at 25°C|
|**Frequency Stability Temperature**|-0.04ppm/(Change in °C)² Maximum|
|**Coefficient**||
|**Turn over Temperature**|25°C ±5°C|
|**Aging at 25°C**|±3ppm/year Maximum|
|**Operating Temperature Range**|-40°C to +85°C|
|**Load Capacitance**|12.5pF Parallel Resonant|
|**Shunt Capacitance**|1.0pF Typical, 1.5pF Maximum|
|**Motional Capacitance**|4.0fF Typical|
|**Equivalent Series Resistance**|70,000 Ohms Maximum|
|**Mode of Operation**|Fundamental|
|**Drive Level**|0.5µWatt Maximum|
|**Crystal Cut**|Tuning Fork|
|**Storage Temperature Range**|-40°C to +85°C|
|**Insulation Resistance**|500 Megaohms Minimum(Measured at 100Vdc)|



|**ENVIRONMENTAL & MECHANICAL SPECIFICATIONS**|**ENVIRONMENTAL & MECHANICAL SPECIFICATIONS**|
|---|---|
|**Fine Leak Test**|MIL-STD-883, Method 1014, Condition A|
|**Gross Leak Test**|MIL-STD-883, Method 1014, Condition C|
|**Mechanical Shock**|MIL-STD-202, Method 213, Condition C|
|**Resistance to Soldering Heat**|MIL-STD-202, Method 210, Condition K|
|**Solderability**|MIL-STD-883, Method 2003|
|**Vibration**|MIL-STD-883, Method 2007, Condition A|



~~**www.ecliptek.com | Specification Subject to Change Without Notice  |  Revision J 01/19/2017 |  Page 1 of 5**~~ 

**Ecliptek, LLC** 5458 Louie Lane, Reno, NV 89511 

1-800-ECLIPTEK or 714.433.1200 

## **E8WSDC12-32.768K TR** 

**==> picture [533 x 157] intentionally omitted <==**

**----- Start of picture text -----**<br>
MECHANICAL DIMENSIONS (all dimensions in millimeters)<br>PIN CONNECTION<br>1.5<br>0.75  1  Crystal<br>±0.1<br>±0.10  2  Crystal<br>1 (X2)<br>LINE MARKING<br>i: i — 1 XXXXXXXX<br>3.2 1.7<br>XXXXXXXX=Ecliptek<br>±0.1 ±0.1 Manufacturing Identifier (8<br>Characters Maximum)<br>2<br>\ i JT<br>0.9 MAX |b |__|<br>MARKING<br>ORIENTATION<br>**----- End of picture text -----**<br>


## **Seam Sealed** 

**Terminal Plating Thickness:** Gold (0.3 to 1.0µm) over Nickel (3.0 to 4.0µm). 

## **Suggested Solder Pad Layout** 

All Dimensions in Millimeters 

**==> picture [164 x 140] intentionally omitted <==**

**----- Start of picture text -----**<br>
1.80 (X2) TF<br>Solder Land<br>(X2)<br>a ne<br>1.50<br>oo _<br>1.00 (X2)<br>on 4<br>**----- End of picture text -----**<br>


All Tolerances are ±0.1 

~~**www.ecliptek.com | Specification Subject to Change Without Notice  |  Revision J 01/19/2017 |  Page 2 of 5** Lo~~ **Ecliptek, LLC** 5458 Louie Lane, Reno, NV 89511 1-800-ECLIPTEK or 714.433.1200 

PART NUMBER DATA SHEET 

## **E8WSDC12-32.768K TR** 

**==> picture [112 x 39] intentionally omitted <==**

## Tape & Reel Dimensions 

Quantity Per Reel: 3,000 units 

**==> picture [513 x 608] intentionally omitted <==**

**----- Start of picture text -----**<br>
All Dimensions in Millimeters<br>Compliant to EIA-481<br>4.00 ±0.10 0.60 MAX<br>DIA 1.50 +0.10/-0.00<br>2.00 ±0.05 0.10 MAX<br>1.75 ±0.10<br>5.50 ±0.05<br>12.00 ±0.30 B0<br>DIA 1.50 MIN<br>4.00 ±0.10 A0 K0<br>Direction of Unreeling<br>1.50 MIN 18.40 MAX<br>DIA 40 MIN<br>Access Hole at<br>Slot Location<br>180 MAX<br>DIA 50 MIN<br>2.50 MIN Width<br>10 MIN Depth<br>DIA 20.20 MIN<br>Tape slot in Core<br>for Tape Start<br>12.40 +2.00/-0.00<br>DIA 13.00 ±0.20<br>**----- End of picture text -----**<br>


~~**www.ecliptek.com | Specification Subject to Change Without Notice  |  Revision J 01/19/2017 |  Page 3 of 5**~~ 

**Ecliptek, LLC** 5458 Louie Lane, Reno, NV 89511 

1-800-ECLIPTEK or 714.433.1200 

## PART NUMBER DATA SHEET **E8WSDC12-32.768K TR** 

## **Recommended Solder Reflow Methods** 

## **High Temperature Infrared/Convection** 

|**TS MAX to TL (Ramp-up Rate)**|3°C/Second Maximum|
|---|---|
|**Preheat**||
|**- Temperature Minimum (TS MIN)**|150°C|
|**- Temperature Typical (TS TYP)**|175°C|
|**- Temperature Maximum (TS MAX)**|200°C|
|**- Time(tS MIN)**|60 - 180 Seconds|
|**Ramp-up Rate(TL to TP)**|3°C/Second Maximum|
|**Time Maintained Above:**||
|**- Temperature (TL)**|217°C|
|**- Time(tL)**|60 - 150 Seconds|
|**Peak Temperature(TP)**|260°C Maximum for 10 Seconds Maximum|
|**Target Peak Temperature(TP Target)**|250°C +0/-5°C|
|**Time within 5°C of actualpeak(tp)**|20 - 40 Seconds|
|**Ramp-down Rate**|6°C/Second Maximum|
|**Time 25°C to Peak Temperature(t)**|8 Minutes Maximum|
|**Moisture Sensitivity Level**|Level 1|
|**Additional Notes**|Temperatures shown are applied to bodyof device.|



~~**www.ecliptek.com | Specification Subject to Change Without Notice  |  Revision J 01/19/2017 |  Page 4 of 5**~~ 

**Ecliptek, LLC** 5458 Louie Lane, Reno, NV 89511 

1-800-ECLIPTEK or 714.433.1200 

## PART NUMBER DATA SHEET **E8WSDC12-32.768K TR** 

## **Recommended Solder Reflow Methods** 

## **Low Temperature Infrared/Convection 245°C** 

|**TS MAX to TL (Ramp-up Rate)**|5°C/Second Maximum|
|---|---|
|**Preheat**||
|**- Temperature Minimum (TS MIN)**|N/A|
|**- Temperature Typical (TS TYP)**|150°C|
|**- Temperature Maximum (TS MAX)**|N/A|
|**- Time(tS MIN)**|30 - 60 Seconds|
|**Ramp-up Rate(TL to TP)**|5°C/Second Maximum|
|**Time Maintained Above:**||
|**- Temperature (TL)**|150°C|
|**- Time(tL)**|200 Seconds Maximum|
|**Peak Temperature(TP)**|245°C Maximum|
|**Target Peak Temperature(TP Target)**|245°C Maximum 2 Times / 230°C Maximum 1 Time|
|**Time within 5°C of actualpeak(tp)**|10 Seconds Maximum 2 Times / 80 Seconds Maximum 1 Time|
|**Ramp-down Rate**|5°C/Second Maximum|
|**Time 25°C to Peak Temperature(t)**|N/A|
|**Moisture Sensitivity Level**|Level 1|
|**Additional Notes**|Temperatures shown are applied to bodyof device.|



## **Low Temperature Manual Soldering** 

185°C Maximum for 10 Seconds Maximum, 2 times Maximum. (Temperatures shown are applied to body of device.) 

## **High Temperature Manual Soldering** 

260°C Maximum for 5 Seconds Maximum, 2 times Maximum. (Temperatures shown are applied to body of device.) 

~~**www.ecliptek.com | Specification Subject to Change Without Notice  |  Revision J 01/19/2017 |  Page 5 of 5**~~ 

**Ecliptek, LLC** 5458 Louie Lane, Reno, NV 89511 

1-800-ECLIPTEK or 714.433.1200

Updated at March 21, 2026

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