RT3215-32.768-12.5-TR.

## **SURFACE MOUNT TUNING FORK CRYSTAL** 

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## **SERIES RT3215** 

## • **FEATURES** 

- SUITABLE FOR TIME OF DAY CLOCKS 

- IDEAL FOR HIGH DENSITY PACKAGING APPLICATION 

- SMALL AND COMPACT PACKAGE 

## • **SPECIFICATIONS** 

|**PARAMETER**|**VALUE**|
|---|---|
|NOMINAL FREQUENCY|32.768 kHz|
|MODE OF OSCILLATION|FUNDAMENTAL|
|FREQUENCY TOLERANCE AT 25°C|±20 PPM STANDARD<br> ±5, ±10PPM AVAILABLE|
|FREQUENCY STABILITY OVER<br>TEMPERATURECOEFFICIENT|-0.04 PPM / °C2|
|OPERATING TEMPERATURE RANGE|-40°C TO +85°C|
|STORAGE TEMPERATURE RANGE|-55°C TO +125°C|
|AGING|±3PPM PER YEAR MAX|
|LOAD CAPACITANCE|6pF, 7pF , 9pF , 12.5 pF*|
|EQUIVALENT SERIES RESISTANCE|70kMAX|
|SHUNTCAPACITANCE|1.1pF TYP|
|DRIVE LEVEL|0.5 µW MAX|
|SHOCK RESISTANCE|±5 PPM MAX 75 cm DROP TEST ONTO A<br>HARD WOOD SURFACE|
|REFLOWCONDITIONS|260°CFOR 10sMAX|



***Note: Other values available** 

## • **PART NUMBERING SYSTEM** 

|**TYPE**|**-**|**FREQUENCY**<br>**kHz**|**-**|**LOAD**<br>**CAPACITANCE**<br>**pF**|**-**|**TOLERANCE**<br>**PPM***|**-**|**TAPE & REEL**|
|---|---|---|---|---|---|---|---|---|
|RT3215|-|32.768|-|6 , 7 , 9 or 12.5|-|5 or 10|**-**|TR|



- **Note: Not included in the PN if the Tolerance has the standard value 20ppm** 

## **EXAMPLE: RT3215-32.768-12.5-10-TR** 

Surface Mount Tuning Fork Crystal, 3.2 mm x 1.5 mm package, 32.768 kHz, 12.5 pF load, ±10 ppm Tolerance, Operating Temperature from -40°C to +85°C, Tape and Reel packaging 

RALTRON ELECTRONICS ▪ 10400 N.W . 33[r d  ] STREET ▪ Miami, Florida 33172 ▪ U.S.A. Telephone: +1-305-593-6033 ▪  Fax: +1-305-594-3973  ▪  e-mail: sales@raltron.com  ▪  web site: http://www.raltron.com 

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## **SURFACE MOUNT TUNING FORK CRYSTAL** 

## **SERIES RT3215** 

## • **MECHANICAL SPECIFICATION** 

**NOTE: REFER TO EIA-481 FOR DIMENSIONS** 

## • **PACKAGING** 

180 mm REEL DIAMETER 12 mm TAPE WIDTH, 4mm PITCH QUANTITY: 3000 PIECES PER REEL 

IN ACCORDANCE WITH EIA-481 

RALTRON ELECTRONICS ▪ 10400 N.W . 33[r d  ] STREET ▪ Miami, Florida 33172 ▪ U.S.A. Telephone: +1-305-593-6033 ▪  Fax: +1-305-594-3973  ▪  e-mail: sales@raltron.com  ▪  web site: http://www.raltron.com 

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## **SURFACE MOUNT TUNING FORK CRYSTAL** 

## **SERIES RT3215** 

## • **REFLOW PROFILE** 

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||||||
|---|---|---|---|---|
|tP|
|TP|
|Critical Zone|
|Ramp-up|TL to TP|
|TL|
|tL|
|TSMAX|
|Temp.|
|[°C]|Ramp-down|
|TSMIN|
|tS Preheat|
|yr|a|
|Time [sec]|
|t[25°C] to Peak|
|Reflow profile (Reference IPC/JEDEC J-STD-020)|
|Temperature Min Preheat|TSMIN|150°C|
|Temperature Max Preheat|TSMAX|200°C|
|Time|(TSMIN to TSMAX)|tS|60-180|sec.|
|Temperature|TL|217°C|
|Peak Temperature|TP|260°C|
|Ramp-up rate|RUP|3°C/sec max.|
|Ramp-down rate|RDOWN|6°C/sec max.|
|Time within 5°C|of Peak Temperature|tP|10|sec.|
|Time t[25°C] to Peak Temperature|t[25°C] to Peak|480 sec.|
|Time|tL|60-150|sec.|

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## • **ENVIRONMENTAL** 

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|||||||||
|---|---|---|---|---|---|---|---|
|PARAMETER|VALUE|
|MOISTURE SENSITIVITY LEVEL|1|
|RoHS|COMPLIANT|
|REACH SVHC|COMPLIANT|
|HALOGEN-FREE|COMPLIANT|Compliant|
|ESD CLASSIFICATION LEVEL|N/A|
|TERMINATION FINISH|Au|
|———|=|=|
|March 2018|
|RALTRON ELECTRONICS|▪ 10400 N.W . 33|[r d  ]|STREET|▪|Miami, Florida 33172|▪|U.S.A.|
|Telephone: +1-305-593-6033 ▪  Fax: +1-305-594-3973  ▪  e-mail: sales@raltron.com  ▪  web site: http://www.raltron.com|

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