Image not available
Illustrative purposes only
ECS-.327-12.5-39-TR
Crystal, ECX-39 Series, 32.768 kHz, 20 ppm, 12.5 pF
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: ECS INC INTERNATIONAL
- Product type: Crystals
- SVHC: To Be Advised
- Frequency Nom: 32.768kHz
- Product Range: ECX-39 Series
- Load Capacitance: 12.5pF
- Crystal Frequency: 32.768kHz
- Crystal Case / Package: SMD, 4.9mm x 1.8mm
- Frequency Stability + / -: -
- Frequency Tolerance + / -: 20ppm
- Operating Temperature Max: 85°C
- Operating Temperature Min: -40°C
| Delivery and price | |
|---|---|
| Units per pack | 15000 |
| Price | 0.624 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
## **ECX-39 SMD CRYSTAL** The miniature ECX-39 is a very compact SMD Tuning Fork Crystal. The 4.9 x 1.8 x 1.0 mm ceramic package is ideal for wide range in communication and measuring equipment. **Request a Sample** ## **ECX-39 SMD CRYSTAL** ## **OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS** **==> picture [557 x 237] intentionally omitted <==** **----- Start of picture text -----**<br> PARAMETERS CONDITIONS ECX-39 UNITS<br>MIN TYP MAX<br>ee Frequency ee Fo 32.768 KHz<br>es Frequency Tolerance ee @ +25°C ± 20 * ppm<br>es Load Capacitance Specify in P/N 12.5 pF<br>es Drive Level DL 0.1 1.0 μW<br>Equivalent Series Resistance R1 70K Ω<br>es<br>Turnover Temperature +20 +25 +30 °C<br>es<br>• Low Profile<br>• 4.9 x 1.8 mm Footprint es Temperature Coefficient ee -0.028 -0.034 -0.040 ppm/°C²<br>• Extended Temp. Range es Shunt Capacitance ee Co 1.33 pF<br>• RoHS Compliant ee Aging (First Year) @ +25°C ±3°C ±3 ppm<br>• Low Power RTC Applications es es<br>such as STM32 a AN2867 es Operating Temperature ee Topr -40 +85 °C<br>es Storage Temperature ee Tstg -55 +125 °C<br>Insulation Resistance @ 100V DC 500M Ω<br>es<br>DIMENSIONS (mm) ee<br>**----- End of picture text -----**<br> _**Figure 1)** Top, Side, and Bottom views_ _**Figure 2)** Suggested Land Pattern_ **PART NUMBERING GUIDE: Example ECS-.327-12.5-39-TR** **==> picture [566 x 113] intentionally omitted <==** ## **ECX-39 SMD CRYSTAL** ## **POCKET TAPE DIMENSIONS (mm)** **SOLDER PROFILE** Peak solder Temp +260°C Max 10 sec Max. 2 Cycles Max. MSL 1, Lead Finish Au _**Figure 1)** Suggested Reflow Profile_
Updated at June 5, 2026
About Novapart
Novapart is a B2B electronic component broker specialising in stock shortages and cost reduction. We source hard-to-find parts and identify compliant alternatives across a catalogue of 540,000+ components from 500+ manufacturers.
Learn more →Stock Shortage Specialist
When a component is unavailable, discontinued or has an unacceptable lead time, we tap into our network of vetted European and Asian distributors to source what you need — without compromising on quality or traceability.
Request a quote →Compliant Alternatives
We identify pin-to-pin, electrically equivalent substitutes that meet the same certifications (RoHS, AEC-Q100, REACH) as your original specification — validated against datasheets, not just part numbers. Often at a lower cost.
BOM Analysis service →