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| Datasheet File OCR Text: |
| SURFACE MOUNT TUNING FORK CRYSTAL UNIT FEATURES SUITABLE FOR TIME OF DAY CLOCK APPLICATIONS LOW PROFILE 1.3 mm HEIGHT EXCELLENT FOR AUTOMATIC AND HIGH DENSITY SURFACE MOUNTING SPECIFICATIONS NOMINAL FREQUENCY 32.768 kHz FREQUENCY TOLERANCE 20 PPM, 50 PPM TURNOVER TEMPERATURE 25C 5C TEMPERATURE COEFFICIENT -(0.0350.01) PPM/C LOAD CAPACITANCE 12.5 pF EQUIVALENT SERIES RESISTANCE 65 kOHMS MAXIMUM DRIVE LEVEL 0.1 W TYP, 1 W MAX. SHUNT CAPACITANCE 0.8 pF TYPICAL AGING (FIRST YEAR) 3 PPM/YEAR MAXIMUM OPERATING TEMPERATURE RANGE -20C TO +70C STORAGE TEMPERATURE RANGE -40C TO +125C INSULATION RESISTANCE 500 MOHMS MINIMUM SHOCK RESISTANCE 5 PPM MAXIMUM OUTLINE DRAWING CARRIER TAPE DIMENSIONS 0.3 0.012 0.55 0.021 .16 .004 SERIES RSE H14 0.3 0.012 0.6 .024 #4 1.40.1 0.055.004 #1 0.1 .004 6.7 0.263 #2 1.30.1 0.051.004 1.2 5.1 0.047 0.2 0.6 .024 0.1.005 .004.0002 16 .630 3.0 4.4 0.1 .170 .004 8.0 0.1 .315 .004 . 0.118 #3 MARKING AREA 3 6.90.1 0.270.004 SOLDER PAD LAYOUT 0.15 0.006 PIN 4 PIN 1 PIN 3 PIN 2 TEMPERATURE REFLOW SOLDERING PROFILE 260 C 2 TO 5 C/s 200 C REFLOW 5s 30 s COOLING 150 C 100 C 1 TO 4 C/s PREHEATING 230 s MAX 0.4 0.015 LEAD CONNECTION 0.2 0.007 0.25 0.009 #1 #4 #2 #3 0.2 0.007 25 C 60 s MIN TIME (SECONDS) FREQUENCY VS. TEMPERATURE CURVE -10 0 25 60 TEMP (C) PACKAGING 330mm REEL DIAMETER 16mm TAPE WIDTH, 8mm PITCH QUANTITY: 3000 PIECES PER REEL PART NUMBERING SYSTEM -50 LOAD HOLDER FREQUENCY - CAPACITANCE TYPE RSE IN kHz 12.5 pF f/fo (ppm) H14 - TAPE & REEL TR EXAMPLE: RSE-32.768-12.5-H14-TR Raltron Electronics Corporation 10651 NW 19th St. Miami, Florida 33172 U.S.A. Tel: 305-593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: http://www.raltron.com 7.5 .295 1.75 .069 1.5 DIA .06 DIA 2.0 0.05 .079 .002 4.0 0.1 |
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