E1WCDA12-32.768K

Crystal, E1WC Series

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Manufacturer: ECLIPTEK
Product type: Crystals
Available until stocks are exhausted
SVHC: No SVHC (25-Jun-2025)
Frequency: 32.768kHz
No. of Pins: 2Pins
Product Range: E1WC Series
Frequency Stability: -
Frequency Tolerance: ± 20ppm
Oscillator Mounting: Through Hole
Operating Temperature Max: 60°C
Operating Temperature Min: -10°C

Delivery and price
Units per pack	500
Price	0.244 €
Current stock	500+
Lead time	30 days

Datasheet

## **E1WCDA12-32.768K** 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 2.1mm x 6.2mm Thru-Hole Metal Cylindrical 32.768KHz ±20ppm at 25°C 12.5pF Parallel Resonant 

## **ELECTRICAL SPECIFICATIONS** 

|**Nominal Frequency**|32.768KHz|
|---|---|
|**Frequency Tolerance**|±20ppm at 25°C|
|**Frequency Stability Temperature**|-0.034ppm ±0.006ppm/(Change in °C)² Maximum|
|**Coefficient**||
|**Turn over Temperature**|25°C ±5°C|
|**Aging at 25°C**|±3ppm/year Maximum|
|**Operating Temperature Range**|-10°C to +60°C|
|**Load Capacitance**|12.5pF Parallel Resonant|
|**Shunt Capacitance**|2pF Maximum|
|**Motional Capacitance**|3.0fF Typical|
|**Equivalent Series Resistance**|35,000 Ohms Maximum|
|**Mode of Operation**|Fundamental|
|**Drive Level**|1µWatt Maximum|
|**Crystal Cut**|Tuning Fork|
|**Storage Temperature Range**|-40°C to +85°C|
|**Insulation Resistance**|500 Megaohms Minimum(Measured at 100Vdc)|
|||
|**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 B|
|**Solderability**|MIL-STD-883, Method 2003|
|**Vibration**|MIL-STD-883, Method 2007, Condition A|



~~**www.ecliptek.com | Specification Subject to Change Without Notice  |  Revision B 04/13/2015 |  Page 1 of 4**~~ 

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

1-800-ECLIPTEK or 714.433.1200 

## PART NUMBER DATA SHEET **E1WCDA12-32.768K** 

## **MECHANICAL DIMENSIONS (all dimensions in millimeters)** 

**==> picture [279 x 61] intentionally omitted <==**

**----- Start of picture text -----**<br>
6.2<br>MAX Ø0.26<br>2.1 MAX ±0.05 (x2)<br>“oe<br>7 LL 6.0 = | F 0.70<br>MIN ±0.20<br>**----- End of picture text -----**<br>


- **LINE MARKING** 1 **XXXX** _XXXX=Ecliptek Manufacturing Identifier_ 

- 2 **XXXX** _XXXX=Ecliptek Manufacturing Identifier_ 

~~**www.ecliptek.com | Specification Subject to Change Without Notice  |  Revision B 04/13/2015 |  Page 2 of 4**~~ 

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

1-800-ECLIPTEK or 714.433.1200 

## PART NUMBER DATA SHEET **E1WCDA12-32.768K** 

## **Recommended Solder Reflow Methods** 

## **High Temperature Solder Bath (Wave Solder)** 

|**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 back of PCB board and device leads only.|



~~**www.ecliptek.com | Specification Subject to Change Without Notice  |  Revision B 04/13/2015 |  Page 3 of 4**~~ 

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

1-800-ECLIPTEK or 714.433.1200 

## PART NUMBER DATA SHEET **E1WCDA12-32.768K** 

## **Recommended Solder Reflow Methods** 

## **Low Temperature Solder Bath (Wave Solder)** 

|**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 1 Time / 235°C Maximum 2 Times|
|**Time within 5°C of actualpeak(tp)**|5 Seconds Maximum 1 Time / 15 Seconds Maximum 2 Times|
|**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 back of PCB board and device leads only.|



## **Low Temperature Manual Soldering** 

185°C Maximum for 10 Seconds Maximum, 2 times Maximum. (Temperatures shown are applied to back of PCB board and device leads only.) 

## **High Temperature Manual Soldering** 

260°C Maximum for 5 Seconds Maximum, 2 times Maximum. (Temperatures shown are applied to back of PCB board and device leads only.) 

~~**www.ecliptek.com | Specification Subject to Change Without Notice  |  Revision B 04/13/2015 |  Page 4 of 4**~~ 

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

1-800-ECLIPTEK or 714.433.1200

Updated at April 23, 2026

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