ECS-271.2-10-37Q-ES-TR

## **ECX-1637Q SMD Crystal** 

The ECX-1637Q is a miniature SMD Crystal with a 2.0 x 1.6 mm footprint.  AEC-Q200 Qualified 

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## **ECX-1637Q SMD CRYSTAL** 

## **OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS** 

**PARAMETERS CONDITIONS ECX-1637Q UNITS MIN TYP MAX** Frequency 16.000 52.000 MHz Mode of Oscillation Fundamental ~~a~~ Frequency Tolerance* @ +25°C ± 30 ppm -40 ~ +125°C Frequency Stability* ± 50 ppm ~~ee~~ (ES O ~~ee~~ ption) ~~ee ee~~ • Low Profile ~~as~~ Shunt Capacitance ~~Ge~~ Co ~~I I I~~ 5 pF • 2.0 x 1.6 mm Footprint ~~as~~ Load Capacitance Specify in P/N 8 pF • RoHS Compliant ~~a~~ Drive Level ~~**G** e~~ DL ~~n III~~ 10 100 ~~I~~ μW • AEC-Q200 Qualified Topr Operating Temperature* -40 +125 °C ~~ee~~ (ES Option) **DIMENSIONS (mm)** ~~a~~ Storage Temperature ~~GG~~ Tstg -40 +125 °C secs ~~ee ee ee~~ Aging (First Year) @ +25°C ±3°C ±5 ppm ~~es Ge es es~~ **Frequency (MHz)         ESR Ω Max.** 16.000 ~ 19.999 150 20.000 ~ 25.999 100 ii ~~I~~ 26.000 ~ 39.999 80 40.000 ~ 52.000 70 Te H 8 re **Pad Connections** 1 In/Out 2 Gnd 3 Out/In 4 Gnd ~~ie~~ _**Figure 1)** Top, Side, and Bottom_ Crystal is symmetrical, pad 1 & 3 are interchangeable. _**Figure 2)** Suggested land pattern_ Chamfer on the bottom pad has no electrical significance. **PART NUMBERING GUIDE:  Example ECS-240-8-37Q-ES-TR ECS -  FREQUENCY ABBREVIATION LOAD PACKAGE AVAILABLE OPTIONS PACKAGING CAPACITANCE** Tolerance                    Stability                 Temp Range ~~ee eee~~ ECS 240 = 24.000  MHz 8 = 8 pF 37Q = Blank = Std Blank= Std Blank= Std TR = See P/N Guide S=Series ECX-1637Q A = ± 25 ppm D= ±100 ppm L =   -10 ~ +70°C Tape & Reel J = ± 20 ppm E = ± 50 ppm M =  -20 ~ +70°C 3K/R l R = ± 15 ppm G = ± 30 ppm Y  =  -30 ~ +85°C C = ± 10 ppm H = ± 25 ppm N =   -40 ~ +85°C * Specify available options in P/N. T = ± 20 ppm † P =   -40 ~ +105°C W = ±15 ppm † S =   -40 ~ +125°C † Contact ECS for availability over extended temp range. K = ± 10 ppm † U =   -55 ~ +125°C a- 

Rev.2020 

## RoHS COMPLIANT 

## **ECX-1637Q 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 i . Cc) #260 “CPeak_~ +250410 ce | +220 °C 2 +170210 °C | 3 | mm 

|**DEVELOPED FREQUENCIES**|**DEVELOPED FREQUENCIES**|
|---|---|
|Abbreviation|Frequency (MHZ)|
|192|19.200|
|200|20.000|
|240|24.000|
|245.7|24.5760|
|250|25.000|
|260|26.000|
|270|27.000|
|271.2|27.120|
|300|30.000|
|320|32.000|
|400|40.000|
|480|48.000|



_**Figure 1)** Suggested Reflow Profile_