# Crystal, ECX-3SX Series, 25 MHz, 30 ppm, 50 ppm, 18 pF

![Product image](https://novapart.co/image/farnell:4715984RL/)

**URL**: https://novapart.co/products/ECS-250-18-7SX-TR/crystal-ecx-3sx-series-25-mhz-30-ppm-50-18-pf
**SKU**: ECS-250-18-7SX-TR
**Manufacturer**: ECS INC INTERNATIONAL
**Category**: Crystals & Oscillators || Crystals
**Price**: €2.1500
**Stock**: 500+
**Lead Time**: 358 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| Product Range | ECX-3SX Series |
| Load Capacitance | 18pF |
| Crystal Frequency | 25MHz |
| Crystal Case / Package | SMD, 12.5mm x 4.6mm |
| Frequency Stability + / - | 50ppm |
| Frequency Tolerance + / - | 30ppm |
| Operating Temperature Max | 70°C |
| Operating Temperature Min | -10°C |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4715984RL/)

**Not Recommended for New Designs** 

**ECX-3SX SMD CRYSTAL** | **Request a Sample** |—— 

## RoHS 

The wide frequency range SMD quartz crystal is an excellent choice for surface mount applications.  The moulded package is made from the same thermoplastic that is an industry standard for integrated circuits. 

## **OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS** 

**==> picture [107 x 8] intentionally omitted <==**

**----- Start of picture text -----**<br>
ECX-3SX SMD CRYSTAL<br>**----- End of picture text -----**<br>


|**PARAMETERS**|**CONDITIONS**|**ECX-3SX**|**ECX-3SX**|**ECX-3SX**|**UNITS**|
|---|---|---|---|---|---|
|||**MIN**|**TYP**|**MAX**||
|Frequency<br>~~Oo~~||3.570||70.000|MHz|
|Frequency Tolerance<br>~~Oo~~<br>~~po~~|@ +25°C|||± 30|ppm|
|FrequencyStability<br>~~Oo~~<br>~~po~~|-10 ~ +70°C|||± 50|ppm|
|Shunt Capacitance<br>~~po~~<br>~~a~~|Co|||7.0|pF|
|Load Capacitance<br>~~a~~|Specify in P/N||20||pF|
|Drive Level<br>~~a~~|DL|||100|μW|
|Operating Temperature*<br>~~Of~~|Topr<br>~~Of~~|-10<br>~~Of~~|~~Of~~|+70<br>~~Of~~|°C<br>~~Of~~|
|Storage Temperature<br>~~Of~~|Tstg<br>~~Of~~|-40<br>~~Of~~|~~Of~~|+85<br>~~Of~~|°C<br>~~Of~~|
|Aging (First Year)<br>~~a~~|@ +25°C ±3°C|||±5|ppm|



- Low Profile 

- Industry Standard Footprint 

- Extended Temp. Range Option 

- RoHS Compliant 

## **DIMENSIONS (mm)** 

|**Frequency (MHz)         ESR Ω Max.**|**Frequency (MHz)         ESR Ω Max.**|**Mode of Osc.**|
|---|---|---|
|3.57 ~ 3.999|200|Fundamental|
|4.000 ~ 5.999|150|Fundamental|
|6.000 ~ 9.999|100|Fundamental|
|10.000 ~ 35.999|50|Fundamental|
|27.000 ~ 70.000|100|3rdOvertone|



_**Figure 1)** Top, Side, and End_ 

_**Figure 2)** Suggested land_ 

## **PART NUMBERING GUIDE:  Example ECS-160-20-7SX-TR** 

|**ECS -  FREQUENCY ABBREVIATION**|**ECS -  FREQUENCY ABBREVIATION**|**ECS -  FREQUENCY ABBREVIATION**|**ECS -  FREQUENCY ABBREVIATION**||**LOAD**|||**PACKAGE**||**PACKAGING**|**PACKAGING**|
|---|---|---|---|---|---|---|---|---|---|---|---|
||||||**CAPACITANCE**|||||||
|||||||||||||
|ECS||160 = 16.000  MHz|||20 = 20 pF|||7SX =||TR =||
|||See Developed|||S = Series|||ECX-3SX||Tape||
|||Frequencies Pg. 2||||||||& Reel||
|||||||||||1K/Reel||



Rev.06/2021 

## **ECX-3SX** RoHS COMPLIANT **SMD CRYSTAL** 

|**DEVELOPED FREQUENCIES**|**DEVELOPED FREQUENCIES**|
|---|---|
|Abbreviation|Frequency (MHZ)|
|35|3.579545|
|36|3.6864|
|40|4.000|
|41|4.096|
|42|4.194304|
|49|4.9152|
|50|5.000|
|60|6.000|
|61|6.144|
|73|7.3728|
|80|8.000|
|81.92|8.192|
|92.1|9.216|
|98.3|9.8304|
|100|10.000|
|110.5|11.0592|
|120|12.000|



|**DEVELOPED FREQUENCIES**|**DEVELOPED FREQUENCIES**|
|---|---|
|Abbreviation|Frequency (MHZ)|
|122.8|12.288|
|125|12.500|
|135.0|13.500|
|143|14.31818|
|147.4|14.7456|
|160|16.000|
|163|16.384|
|180|18.000|
|184|18.432|
|196.6|19.6608|
|200|20.000|
|221|22.1184|
|240|24.000|
|245.7|24.576|
|250|25.000|
|283.2|28.322|
|294.9|29.4912|



_***Contact ECS for availability of frequencies not listed in table.**_ 

## nore 

## **ECX-3SX SMD CRYSTAL** 

## **POCKET TAPE DIMENSIONS (mm)** 

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

_**Figure 1)** Suggested Reflow Profile_ 



## Links

- [View this product on Novapart](https://novapart.co/products/ECS-250-18-7SX-TR/crystal-ecx-3sx-series-25-mhz-30-ppm-50-18-pf)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/ecs-inc-international/ecs-250-18-7sx-tr/crystal-25mhz-18pf-smd-12-5mm/dp/4715984RL)
---

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