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ECS-384-10-37B2-CTP-TR
Crystal, ECX-1637B2 Series, 38.4 MHz, 10 ppm, 20 ppm, 10 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: 38.4MHz
- Product Range: ECX-1637B2 Series
- Load Capacitance: 10pF
- Crystal Frequency: 38.4MHz
- Crystal Case / Package: SMD, 2mm x 1.6mm
- Frequency Stability + / -: 20ppm
- Frequency Tolerance + / -: 10ppm
- Operating Temperature Max: 105°C
- Operating Temperature Min: -40°C
| Delivery and price | |
|---|---|
| Units per pack | 3000 |
| Price | 0.151 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
## RoHS COMPLIANT The sub miniature ECX-1637B2 is a very compact SMD Crystal. The 2.0 x 1.6 x 0.45 mm ceramic package is ideal for wireless applications. ## **ECX-1637B2 SMD CRYSTAL** **Request a Sample** ## **OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS** ## **ECX-1637B2 SMD CRYSTAL** |**ECX-1637B2 SMD CRYSTAL**|**OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS**|**OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS**| |---|---|---| |||**PARAMETERS**<br>**CONDITIONS**<br>**ECX-1637B2**<br>**UNITS**| |||**MIN**<br>**TYP**<br>**MAX**| |||Frequency<br>16.000<br>50.000<br>MHz<br>~~es~~| |||Mode of Oscillation<br>Fundamental<br>~~Ds~~| |||Frequency Tolerance*<br>@ +25°C<br>(C option)<br>± 10<br>ppm| |||Frequency Stability*<br>-30 ~ +85°C<br>(KY option)<br>± 10<br>ppm| |Low 1st Year Aging ±2 ppm Max.<br>2.0 x 1.6 mm Footprint<br>Extended Temp. Range Option<br>RoHS Compliant<br>**DIMENSIONS (mm)**<br>2020.||Shunt Capacitance<br>Co<br>3<br>pF<br>Load Capacitance<br>Specifyin P/N<br>8<br>pF<br>Drive Level<br>DL<br>100<br>μW<br>Operating Temperature*<br>Topr<br>(Y option)<br>-30<br>+85<br>°C<br>Storage Temperature<br>Tstg<br>-55<br>+125<br>°C<br>~~ee~~<br>~~aDs~~<br>~~Vs~~| ||<br>#1<br>#2||Aging (First Year)<br>@ +25°C ±3°C<br>±2<br>ppm<br>**Frequency (MHz) ESR Ω Max.**<br>16.000 ~ 19.999<br>150<br>20.000 ~ 23.999<br>70<br>24.000 ~ 39.999<br>50<br>40.000 ~ 50.000<br>40<br>=<br>[|I~| |**_Figure 1)_**_Top, Side, and Bottom_<br>Crystal is symmetrical, pad 1 & 3 are interchangeable.<br>=<br>0.65<br>a|Crystal is symmetrical, pad 1 & 3 are interchangeable.<br>#1<br><#2 |**Pad Connections**<br>1<br>In/Out<br>2<br>Gnd<br>3<br>Out/In<br>4<br>Gnd<br>**_Figure 2)_**_Suggested land_<br>#2<br>#4 :Groundedtometallid><br>oes<br>0s<br>oes<br>at<br>1.35| - Low 1[st] Year Aging ±2 ppm Max. - 2.0 x 1.6 mm Footprint - Extended Temp. Range Option - RoHS Compliant _**Figure 1)** Top, Side, and Bottom_ Crystal is symmetrical, pad 1 & 3 are interchangeable. Chamfer on the bottom pad has no electrical significance. **PART NUMBERING GUIDE: Example ECS-240-8-37B2-CKY-TR** |**ECS - FREQUENCY ABBREVIATION**|**ECS - FREQUENCY ABBREVIATION**|**ECS - FREQUENCY ABBREVIATION**||**LOAD**<br>**CAPACITANCE**|**LOAD**<br>**CAPACITANCE**||**PACKAGE**|**PACKAGE**|**AVAILABLE OPTIONS**<br>Tolerance Stability Temp Range|**AVAILABLE OPTIONS**<br>Tolerance Stability Temp Range|**AVAILABLE OPTIONS**<br>Tolerance Stability Temp Range|**AVAILABLE OPTIONS**<br>Tolerance Stability Temp Range|**AVAILABLE OPTIONS**<br>Tolerance Stability Temp Range|Tolerance Stability Temp Range|Tolerance Stability Temp Range<br>**PACKAGING**|Tolerance Stability Temp Range<br>**PACKAGING**|Tolerance Stability Temp Range<br>**PACKAGING**|| |---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---| |||||||||||||||||||| |240 = 24.000 MHz<br>ECS||||8 = 8 pF||-37B2 =|||Blank = Std||Blank= Std||Blank= Std||||TR =|| |See P/N Guide||||10 = 10 pF<br>S=Series||ECX-1637B2|||A = ± 25ppm<br>J = ± 20ppm<br>R = ± 15ppm<br>C = ± 10ppm||D= ±100 ppm<br>E = ± 50 ppm<br>G = ± 30 ppm<br>H = ± 25 ppm||L = -10 ~ +70°C<br>M = -20 ~ +70°C<br>Y = -30 ~ +85°C<br>N = -40 ~ +85°C||||Tape<br>& Reel<br>3K/Reel|| |* Specify available options in P/N.|||||||||7 = ± 7 ppm||T = ± 20 ppm †||P = -40 ~ +105°C|||||| |† Contact ECS for availability over extended temp range.||||† Contact ECS for availability over extended temp range.|||||||W = ±15 ppm †<br>K = ± 10 ppm †||S = -40 ~ +125°C||||Rev.2021|| * Specify available options in P/N. † Contact ECS for availability over extended temp range. ## **ECX-1637B2** RoHS COMPLIANT **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
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