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ECS-.327-6-34RR-TR
Crystal, ECX-34RR Series, 32.768 kHz, 20 ppm, 6 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: No SVHC (04-Feb-2026)
- Frequency Nom: 32.768kHz
- Product Range: ECX-34RR Series
- Load Capacitance: 6pF
- Crystal Frequency: 32.768kHz
- Crystal Case / Package: SMD, 3.2mm x 1.5mm
- Frequency Stability + / -: -
- Frequency Tolerance + / -: 20ppm
- Operating Temperature Max: 85°C
- Operating Temperature Min: -40°C
| Delivery and price | |
|---|---|
| Units per pack | 9000 |
| Price | 0.461 € |
| Current stock | 1000+ |
| Lead time | 30 days |
Datasheet
## **ECX-34RR SMD CRYSTAL** The ultra-miniature ECX-34RR is a very compact SMD Tuning Fork Crystal with a Typical ESR of 20K Ω. Low ESR part recommended by STMicroelectronics for the STM32 Microcontrollers. **Request a Sample** ## **OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS** **ECX-34R SMD CRYSTAL PARAMETERS CONDITIONS ECX-34RR UNITS MIN TYP MAX** ~~es~~ Frequency ~~ee~~ Fo 32.768 KHz Frequency Tolerance @ +25°C ± 20 * ppm Load Capacitance Specify in P/N 12.5 pF Equivalent Series Resistance R1 20K 40K Ω ~~Rs es~~ Drive Level ~~ee~~ DL ~~es~~ 0.1 0.5 μW ~~es~~ Quality Factor Q 20K 30K Turnover Temperature +20 +25 +30 °C ~~es~~ • Low Power RTC Applications ~~ee~~ such as STM32 AN2867 ~~— es~~ Temperature Coefficient -0.028 -0.034 -0.040 ppm/°C² • 20K Typ ESR ~~ee~~ Shunt Capacitance Co 1.3 1.6 pF • 3.2 x 1.5 mm Footprint ~~es~~ Motional Capacitance C1 3.8 fF • Extended Temp. Range ~~ee es~~ • RoHS Compliant ~~es~~ Aging (First Year) @ +25°C ±3°C ±3 ppm ~~ee es es~~ Operating Temperature Topr -40 +85 °C **DIMENSIONS (mm)** ~~es~~ Storage Temperature ~~ee~~ Tstg -40 +85 °C Insulation Resistance @ 100V DC 500M Ω ~~pT~~ 4 . **PAD CONNECTIONS** ~~-~~ 1 In/Out ~~oi~~ 0.1 7 7/ 2 Out/In _**Figure 1)** Top, Side, and Bottom views_ _**Figure 2)** Suggested Land Pattern_ **PART NUMBERING GUIDE: Example ECS-.327-12.5-34RR-TR ECS - FREQUENCY ABBREVIATION LOAD PACKAGE CUSTOM OPTIONS PACKAGING CAPACITANCE** Tolerance ~~SS~~ ECS .327 = 32.768 KHz 12.5 = 12.5 pF -34RR = ECX-34RR Blank = ±20 ppm TR = Tape 9 = 9 pF * C = ± 10 ppm & Reel 6 = 6 pF 3K/Reel _**Figure 2)** Suggested Land Pattern_ Rev.2017 *Contact ECS for availability ## [= S **ECX-34RR SMD CRYSTAL** ## **POCKET TAPE DIMENSIONS (mm)** **==> picture [347 x 32] intentionally omitted <==** **----- Start of picture text -----**<br> CATs [e[o[F[[1M | Reida | oymee<br>**----- End of picture text -----**<br> **SOLDER PROFILE** Peak solder Temp +260°C Max 10 sec Max. 2 Cycles Max. MSL 1, Lead Finish Au (°C) +260 °CPeak +220 °C g +170410 °C : Ee _**Figure 1)** Suggested Reflow Profile_
Updated at June 5, 2026
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