# Crystal, ECX-1637BQ Series, 16 MHz, 10 ppm, 20 ppm, 12 pF

![Product image](https://novapart.co/image/farnell:4077004/)

**URL**: https://novapart.co/products/ECS-160-12-37BQ-CTN-TR/crystal-ecx-1637bq-series-16-mhz-10-ppm-20-12-pf
**SKU**: ECS-160-12-37BQ-CTN-TR
**Manufacturer**: ECS INC INTERNATIONAL
**Category**: Crystals & Oscillators || Crystals
**Price**: €0.1840
**Stock**: 10+
**Lead Time**: 78 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (04-Feb-2026) |
| Frequency Nom | 16MHz |
| Product Range | 0 |
| Load Capacitance | 12pF |
| Crystal Frequency | 16MHz |
| Crystal Case / Package | SMD, 2mm x 1.6mm |
| Frequency Stability + / - | 20ppm |
| Frequency Tolerance + / - | 10ppm |
| Operating Temperature Max | 85°C |
| Operating Temperature Min | -40°C |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4077004/)

## RoHS 

The sub miniature ECX-1637BQ is a very compact SMD Crystal with low aging and AECQ-200 qualified.  The 2.0 x 1.6 x 0.45 mm ceramic package is ideal for automotive and industrial applications. 

**ECX-1637BQ SMD CRYSTAL** | **Request a Sample** J | 

## **ECX-1637BQ SMD CRYSTAL** 

- Low 1[st] Year Aging ±1 ppm Max. 

- 2.0 x 1.6 mm Footprint 

- Extended Temp. Range Option 

- AEC-Q200 

## **DIMENSIONS (mm)** 

## **OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS** 

|**PARAMETERS**|**CONDITIONS**|**ECX-1637BQ**|**ECX-1637BQ**|**ECX-1637BQ**|**UNITS**|
|---|---|---|---|---|---|
|||**MIN**|**TYP**|**MAX**||
|Frequency<br>~~ee~~|~~ee~~|16.000<br>~~ee~~|~~ee~~|50.000<br>~~ee~~|MHz<br>~~ee~~|
|Mode of Oscillation<br>~~ee~~|Fundamental<br>~~ee~~|~~ee~~|~~ee~~|~~ee~~|~~ee~~|
|Frequency Tolerance*|@ +25°C<br>(C option)|||± 10|ppm|
|Frequency Stability*|-30 ~ +85°C<br>(KY option)|||± 10|ppm|
|Shunt Capacitance<br>~~ee~~|Co<br>~~ee~~|~~ee~~|~~ee~~|3<br>~~ee~~|pF<br>~~ee~~|
|Load Capacitance<br>~~Re~~|Specifyin P/N<br>~~Re~~|~~Re~~|8<br>~~Re~~|~~Re~~|pF<br>~~Re~~|
|Drive Level<br>~~ee~~|DL<br>~~ee~~|~~ee~~|~~ee~~|200<br>~~ee~~|μW<br>~~ee~~|
|Operating Temperature*|Topr<br>(Y option)|-30||+85|°C|
|Storage Temperature|Tstg|-55||+125|°C|
|Aging (First Year)|@ +25°C ±3°C|||±1|ppm|



|**Pad Connections**|**Pad Connections**|
|---|---|
|1|In/Out|
|2|Gnd|
|3|Out/In|
|4|Gnd|



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

_**Figure 2)** Suggested land_ 

Crystal is symmetrical, pad 1 & 3 are interchangeable. Chamfer on the bottom pad has no electrical significance. 

**PART NUMBERING GUIDE:  Example ECS-240-8-37BQ-CKY-TR** 

|**ECS -  FREQUENCY ABBREVIATION**|**ECS -  FREQUENCY ABBREVIATION**|**ECS -  FREQUENCY ABBREVIATION**||**LOAD**||||**PACKAGE**|**PACKAGE**|||||**AVAILABLE OPTIONS**|**AVAILABLE OPTIONS**|**AVAILABLE OPTIONS**||**PACKAGING**|**PACKAGING**|**PACKAGING**||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|||||**CAPACITANCE**||||||||Tolerance           Stability                 Temp Range|||Tolerance           Stability                 Temp Range|Tolerance           Stability                 Temp Range|Tolerance           Stability                 Temp Range|Tolerance           Stability                 Temp Range||||
|||||||||||||||||||||||
|240 = 24.000  MHz<br>ECS||||8 = 8 pF|||-37BQ =|||Blank = Std||||Blank= Std||Blank= Std||||TR =1K||
|See P/N Guide||||10 = 10 pF<br>S=Series|||ECX-1637BQ|||A = ± 25ppm<br>J = ± 20ppm<br>R = ± 15ppm||||D= ±100 ppm<br>E = ± 50 ppm<br>G = ± 30 ppm||L =   -10 ~ +70°C<br>M = -20 ~ +70°C<br>Y  =  -30 ~ +85°C||||TR3=3K<br>Qty/Reel|Qty/Reel|
|||||||||||C = ± 10||C = ± 10ppm||H = ± 25 ppm||N =  -40 ~ +85°C||||||
|* Specify available options in P/N.||||||||||7 = ± 7 ppm|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<br>U =  -55 ~ +125°C||||Rev.2020||



* Specify available options in P/N. † Contact ECS for availability over extended temp range. 

## **ECX-1637BQ 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_ 



## Links

- [View this product on Novapart](https://novapart.co/products/ECS-160-12-37BQ-CTN-TR/crystal-ecx-1637bq-series-16-mhz-10-ppm-20-12-pf)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/ecs-inc-international/ecs-160-12-37bq-ctn-tr/crystal-16mhz-12pf-smd-2mm-x-1/dp/4077004)
---

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