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 ±25°C ±5°C TEMPERATURE COEFFICIENT -(0.035±0.01) PPM/°C² LOAD CAPACITANCE 12.5 pF EQUIVALENT SERIES RESISTANCE 65 kOHMS MAXIMUM DRIVE LEVEL 0.1 µW TYP, 1 µW MAX. SHUNT CAPACITANCE 0.8 pF TYPICAL AGING (FIRST YEAR) ±3 PPM/YEAR MAXIMUM OPERATING TEMPERATURE RANGE -20°C TO +70°C STORAGE TEMPERATURE RANGE -40°C TO +125°C INSULATION RESISTANCE 500 MOHMS MINIMUM SHOCK RESISTANCE ±5 PPM MAXIMUM SERIES RSE H14 OUTLINE DRAWING 0.1 .004 1.2 5.1 0.047 0.2 6.9±0.1 0.27±0.004 3 3.0 4.4 ± 0.1 .170 ± .004 SOLDER PAD LAYOUT PIN 4 PIN 3 PIN 1 PIN 2 8.0 ± 0.1 . 0.118 .315 ± .004 REFLOW SOLDERING PROFILE REFLOW 260 °C 5s 0.25 0.009 #1 #2 #4 #3 0.2 0.007 LEAD CONNECTION 0.2 0.007 TEMPERATURE 2 TO 5 °C/s 0.4 0.015 1.75 .069 7.5 .295 0.6 .024 0.3 0.012 0.55 0.021 0.1±.005 .004±.0002 .16 ± .004 16 .630 #2 6.7 0.263 4.0 ± 0.1 2.0 ± 0.05 .079 ± .002 0.6 .024 #1 0.15 0.006 1.4±0.1 0.055±.004 #3 MARKING AREA 1.5 DIA .06 DIA 1.3±0.1 0.051±.004 #4 0.3 0.012 CARRIER TAPE DIMENSIONS 200 °C 30 s COOLING 150 °C PREHEATING 230 s MAX 100 °C 1 TO 4 °C/s 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: [email protected] Internet: http://www.raltron.com