AS-4.000-18

## **LOW PROFILE MICROPROCESSOR CRYSTAL** 

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## **SERIES AS (HC-49/S)** 

##  **FEATURES** 

- EXCELLENT CLOCK SIGNAL GENERATOR FOR CPU’s 

- 3.5 mm MAXIMUM HEIGHT 

- AVAILABLE IN EXTENDED TEMPERATURE RANGE 

- SAME PIN LAYOUT AS HC-49/U 

##  **SPECIFICATIONS** 

|**PARAMETER**|**PARAMETER**|**VALUE**|
|---|---|---|
|FREQUENCY RANGE||3.500 MHz TO 70.000 MHz|
|MODE OF OSCILLATION|FUNDAMENTAL|3.500 MHz TO 40.320 MHz|
||THIRD OVERTONE|24.576 MHz TO 70.000 MHz|
|FREQUENCY TOLERANCE AT 25°C||±30 PPM STANDARD<br>(±10, ±20AND±50PPM AVAILABLE)|
|FREQUENCY STABILITY OVER TEMPERATURE||±50 PPM STANDARD<br>(±10, ±20, ±50AND±100PPM AVAILABLE)|
|OPERATING TEMPERATURE RANGE||-20°C TO +70°C STANDARD<br>-40°CTO+85°CEXTENDED|
|STORAGE TEMPERATURE RANGE||-55°C TO +125°C|
|AGING||±5PPM PER YEAR MAXIMUM|
|LOADCAPACITANCE||10 pFto 32pFORSERIES|
|EQUIVALENTSERIESRESISTANCE||SEE TABLE 1|
|SHUNTCAPACITANCE||7.0 pF MAXIMUM|
|DRIVE LEVEL||500 µW MAX|
|SHOCK RESISTANCE||±5 PPM MAXIMUM 75 cm DROP TEST IN<br>3AXES ON TOA HARDSURFACE|
|REFLOWCONDITIONS||260°C ±5°CFOR 10sMAXIMUM|
|CRYSTALCUT||ATSTRIP|



~~eam~~ **TABLE 1 FREQUENCY MAX ESR FREQUENCY MAX ESR FREQUENCY MAX ESR MODE MODE MODE** ~~i~~ **(MHz) (OHMS) (MHz) (OHMS) (MHz) (OHMS)** ~~eG~~ 3.500 FUND 180 ~~GG~~ 7.3728 FUND 70 ~~OO~~ 11.2896 FUND 50 ~~se~~ 3.579545 FUND 180 7.680 FUND ~~OO~~ 70 ~~S(O~~ 12.000 FUND 50 ~~GG~~ 3.6864 FUND 150 8.000 ~~GG~~ FUND 60 ~~OO~~ 12.288 FUND 50 ~~se~~ 4.000 FUND 130 8.064 FUND ~~OO~~ 60 ~~S(O~~ 12.800 FUND 50 ~~GG~~ 4.032 FUND 130 8.192 ~~GG~~ FUND 60 ~~OO~~ 14.31818 FUND 50 ~~eG~~ 4.096 FUND 130 ~~GG~~ 8.6436 FUND 60 ~~GO~~ 14.7456 FUND 50 ~~se~~ 4.194304 FUND 130 9.600 FUND ~~OO~~ 60 ~~S(O~~ 16.000 TO 24.000 FUND 40 ~~GG~~ 4.433619 FUND 130 9.8304 ~~GG~~ FUND 60 ~~OO~~ 24.576 FUND/3OT 40/80 ~~se~~ 4.9152 FUND 130 10.000 FUND ~~OO~~ 50 ~~S(O~~ 27.000 FUND/3OT 40/80 ~~GG~~ 5.0688 FUND 100 10.240 ~~GG~~ FUND 50 ~~OO~~ 28.63636 FUND/3OT 40/80 ~~eG~~ 6.000 FUND 80 ~~GG~~ 10.244 FUND 50 ~~GO~~ 29.000 TO 40.000 FUND/3OT 40/70 ~~eG~~ 6.144 FUND 80 10.245 FUND ~~**G** O~~ 50 ~~(OO~~ 40.320 FUND/3OT 40/70 ~~G~~ 6.176 FUND 80 11.000 FUND 50 47.920 3OT 70 7.15909 FUND 70 11.0592 ~~GO~~ FUND 50 48.000 TO 70.000 3OT 70 ~~es[sf] OO~~ OTHER FREQUENCIES ARE AVAILABLE CONTACT SALES 

RALTRON ELECTRONICS  10400 N.W . 33 ~~[r d  ]~~ STREET  Miami, Florida 33172  U.S.A. Telephone: 305-593-6033   Fax: 305-594-3973    e-mail: sales@raltron.com    web site: http://www.raltron.com 

## **LOW PROFILE MICROPROCESSOR CRYSTAL** 

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## **SERIES AS (HC-49/S)** 

##  **PART NUMBERING SYSTEM** 

|**TYPE**|**TYPE**|**-**|**FREQUENCY**|**-**|**-**||**LOAD CAPACITANCE**<br>**-**|**MODE**<br>**-**<br>**TOLERANCE/STABLITY**<br>**(PPM/PPM)**|
|---|---|---|---|---|---|---|---|---|
|**AS**||**-**|**IN MHz**|**-**|||**10 TO 32 pF FOR PARALLEL**<br>**S FOR SERIES**<br>**-**|**Blank FOR < 24.576 MHz**<br>**F FOR ≥ 24.576 MHz**<br>**3OT THIRDOVERTONE**<br>**-**<br>**Blank**FOR STANDARD<br>**PPMPPM**<br>Example: 1020, 2050|
||||||||||
|**-**|||**EXTENDED**<br>**TEMPERATURE**||||**-**<br>**MECHANICAL OPTIONS**<br>**-**<br>**HEIGHT (H)**<br>**-**<br>**TAPE &**<br>**REEL**<br>**(optional)**||
||||||||**3PIN**for THREE PIN BASE<br>**Blank FOR 3.5 mm (STANDARD)**||
|**-**||**Blank**FOR STANDARD<br>**EXT**FOR EXTENDED|||||FOR STANDARD<br>**-**<br>**SP**for SPACER<br>**CLxx**for CUT LEADS<br>**-**<br>**H32 3.2 mm (CUSTOM)**<br>**H30 3.0 mm (CUSTOM)**<br>**-**<br>TR||
||||||||(xx=LENGTH)|**H25 2.5 mm (CUSTOM)**|



## **EXAMPLE: AS-24.000-18** 

Through Hole Crystal, HC-49/SHORT, 24.000 MHz, Fundamental mode, 18 pF load, ±30 ppm Tolerance, ±50 ppm Stability, from -20°C to +70°C 

##  **OUTLINE DRAWINGS** 

RALTRON ELECTRONICS  10400 N.W . 33 ~~[r d  ]~~ STREET  Miami, Florida 33172  U.S.A. Telephone: 305-593-6033   Fax: 305-594-3973    e-mail: sales@raltron.com    web site: http://www.raltron.com 

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## **LOW PROFILE MICROPROCESSOR CRYSTAL** 

## **SERIES AS (HC-49/S)** 

## **REFLOW PROFILE** 

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tP<br>TP<br>Critical Zone<br>Ramp-up  TL to TP<br>TL<br>TSMAX tL<br>Temp.<br>[°C]  Ramp-down<br>TSMIN<br>tS Preheat<br>Time [sec]<br>t[25°C] to Peak<br>**----- End of picture text -----**<br>


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|---|---|---|
|TemperatureMin Preheat|TSMIN|150°C|
|TemperatureMax Preheat|TSMAX|200°C|
|Time (TSMINtoTSMAX)|tS|60-180 sec.|
|Temperature|TL|217°C|
|Peak Temperature|TP|260°C|
|Ramp-uprate|RUP|3°C/secmax.|
|Ramp-down rate|RDOWN|6°C/secmax.|
|Timewithin5°C of Peak Temperature|tP|10 sec.|
|Time t[25°C] toPeak Temperature|t[25°C] toPeak|480 sec.|
|Time|tL|60-150 sec.|



##  **ENVIRONMENTAL** 

**PARAMETER VALUE** MOISTURE SENSITIVITY LEVEL 1 REACH SVHC COMPLIANT RoHS 6/6 LEAD FREE ~~=~~ TERMINATION FINISH Sn 

DECEMBER 2013 

RALTRON ELECTRONICS  10400 N.W . 33 ~~[r d  ]~~ STREET  Miami, Florida 33172  U.S.A. Telephone: 305-593-6033   Fax: 305-594-3973    e-mail: sales@raltron.com    web site: http://www.raltron.com