ECS-40-18-10X

Crystal, ECS-3X10X Series, 4 MHz, 50 ppm, 50 ppm, 18 pF

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Manufacturer: ECS INC INTERNATIONAL
Product type: Crystals
SVHC: No SVHC (04-Feb-2026)
Frequency Nom: 4MHz
Product Range: ECS-3X10X Series
Load Capacitance: 18pF
Crystal Frequency: 4MHz
Crystal Case / Package: Cylinder Radial, 10.5mm x 3.2mm Dia
Frequency Stability + / -: 50ppm
Frequency Tolerance + / -: 50ppm
Operating Temperature Max: 60°C
Operating Temperature Min: -10°C

Delivery and price
Units per pack	500
Price	0.378 €
Current stock	500+
Lead time	30 days

Datasheet

## Rre)fe S 

**ECS-3X10X, 3X9X High Frequency Miniature Quartz Crystals** 

These products represent our selection of miniature tubular high frequency crystals.  They feature outstanding shock/vibration resistance and environmental characteristics. 

## **OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS** 

|**PARAMETERS**|**CONDITIONS**|**ECS-3X10X       ECS-3X9X**|**ECS-3X10X       ECS-3X9X**|**UNITS**|
|---|---|---|---|---|
|Frequency|FO|3.50 ~ 9.83|4.00 ~ 70.00|MHz|
|Frequency Tolerance|@ +25°C|± 50||ppm|
|Frequency Stability|-10 ~ +60°C|± 50||ppm|
|Operating Temperature|Topr|-10 ~ +60||°C|
|Storage Temperature|Tstg|-40 ~ +85||°C|
|Load Capacitance|CL|16 pF typ.<br>(Customer Specified)||pF|
|Shunt Capacitance|C0|5.0 max.||pF|
|Drive Level|DL|50 ~ 100||μW|
|Insulation Resistance|DC 100V±15V|500MΩ min.||MΩ|
|Aging (First Year)|@ +25°C ±3°C|±5 ppm max.||ppm|



- Cost Effective 

- Excellent Aging 

- Wide Frequency Range 

- Excellent Reliability 

- Pb Free/RoHS Compliant 

## **DIMENSIONS (mm)** 

|**Frequency (MHz)         ESR Ω Max.**|**Frequency (MHz)         ESR Ω Max.**|**Mode**|
|---|---|---|
|3.50 ~ 4.00|200|Fundamental|
|4.00 ~ 6.00|150|Fundamental|
|6.00 ~ 10.00|100|Fundamental|
|10.00 ~ 30.00|50|Fundamental|
|30.00 ~ 36.00|100|3rdOvertone|
|36.00 ~ 70.00|80|3rdOvertone|



## **PART NUMBERING GUIDE:** 

|**Manufacturer**<br>**Frequency**|**Laod Capacitance***|**Package Type****|
|---|---|---|
|ECS              -                35                       -           16                            -              10X|ECS              -                35                       -           16                            -              10X|ECS              -                35                       -           16                            -              10X|
|ECS              -                160                     -           16                            -              9X|ECS              -                160                     -           16                            -              9X|ECS              -                160                     -           16                            -              9X|
|* Load capacitance (xx = xx pF, S = Series|||
|** Package type examples (10 = 3x10, 9X = 3x9)|||



Rev.2017 

## RoHS **ECS-3X10X, 3X9X** COMPLIANT **High Frequency Miniature Quartz Crystals** 

## **DEVELOPED FREQUENCIES ECS-3X10X** 

**SOLDER PROFILE** Peak solder Temp +260°C Max 10 sec Max. 2 Cycles Max. MSL 1, Lead Finish Sn/Cu Matte 

_**Figure 1)** Suggested Reflow Profile_ 

**==> picture [160 x 150] intentionally omitted <==**

**----- Start of picture text -----**<br>
||||
|---|---|---|
|Abbreviation|Frequency|(MHZ)|
|035|3.579545|
|036|3.6864|
|040|4.000|
|049|4.9152|
|050|5.000|
|060|6.000|
|073|7.3728|
|080|8.000|
|081.92|8.192|
|098.3|9.8304|

**----- End of picture text -----**<br>


**==> picture [160 x 234] intentionally omitted <==**

**----- Start of picture text -----**<br>
||||
|---|---|---|
|DEVELOPED FREQUENCIES|
|ECS-3X9X|
|Abbreviation|Frequency|(MHZ)|
|100|10.000|
|110.5|11.0592|
|120|12.000|
|143|14.31818|
|147.4|14.7456|
|160|16.000|
|184|18.432|
|196.6|19.6608|
|200|20.000|
|240|24.000|
|245.7|24.576|
|250|25.000|
|270|27.000|
|320|32.000|

**----- End of picture text -----**<br>

Updated at June 5, 2026

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