RSEB RALTRON | Alldatasheet
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Technical content
Raltron Electronics • 10400 NW 33rd Street • Miami, Florida 33172 • U.S.A. Tel: 305-593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: www.raltron.com SURFACE MOUNT TUNING FORK CRYSTAL UNIT -10 25 60 TEMP (°C) f/foΔ (ppm) -50 330mm REEL DIAMETER 16mm TAPE WIDTH, 8mm PITCH QUANTITY: RSE B 2000 PIECES PER REEL RSE C 3000 PIECES PER REEL SERIES RSE B AND C EXAMPLE: RSE-32.768-12.5-B-T
FEATURES
SUITABLE FOR TIME OF DAY CLOCK APPLICATIONS LOW FREQUENCY RANGE EXCELLENT FOR AUTOMATIC AND HIGH DENSITY SURFACE MOUNTING FREQUENCY TOLERANCE ±20 PPM MAXIMUM (±50 PPM AND ±100 PPM AVAILABLE) TURNOVER TEMPERATURE ±25°C ±5°C ±25°C ±8°C ±25°C ±15°C TEMPERATURE COEFFICIENT (-0.035 ± 0.008) PPM/°C² LOAD CAPACITANCE 6.0 TO 12.5 pF EQUIVALENT SERIES RESISTANCE (ESR) 50 K OHM MAXIMUM 50 K OHM MAXIMUM 20 K OHM MAXIMUM DRIVE LEVEL 1.0 µW MAXIMUM SHUNT CAPACITANCE 1.0 pF TYPICAL 0.95 pF TYPICAL 0.9 pF TYPICAL AGING (FIRST YEAR) ±5 PPM MAXIMUM OPERATING TEMPERATURE RANGE -40°C TO +85°C STORAGE TEMPERATURE RANGE -55°C TO +125°C SHOCK RESISTANCE ±5 PPM MAXIMUM 75 cm DROP TEST IN 3 AXES ONTO A HARD SURFACE OR 3000 g x 0.3 ms x ½ SINEWAVE IN 3 AXES SOLDER REFLOW CONDITIONS 230 °C MAXIMUM FOR 20 s MAXIMUM PACKAGINGFREQUENCY VS. TEMPERATURE CURVE RSE CRSE B OUTLINE DRAWINGS Scale none Dimensio n in mm inch REFLOW SOLDERING PROFILE PREHEATING REFLOW COOLING 230 °C 150 °C 25 °C 30 - 40 s TIME (SECONDS) TEMPERATURE 15 - 20 s Scale none Dimensio n in mm inch PIN 4 PIN 3 PIN 2PIN 1 10.41 .410 9.40 .370 0.6 .024 0.6 .024 2.7 .106 5.0 .197 2.7 .106 LEAD CONNECTION PIN 4 PIN 3 PIN 2PIN 1 0.51 .020 2.29 .090 0.51 .020 3.56 .140 2.54 .100 .100 2.54 SOLDER PAD LAYOUT MARKING AREA 4.06 .160 1.7 .0673 PIN 4 PIN 3 PIN 2PIN 1 MARKING AREA 0.6 .024 5.5 .217 0.6 .024 0.7 .028 4.8 .189 0.7 .028 0.7 .028 1.6 .063 1.6 .063 SOLDER PAD LAYOUT 1.4 .055 1.4 .055 2.5 .099 PIN 4 PIN 3 PIN 2PIN 1 LEAD CONNECTION 3.7 .148 8.7 .343 CARRIER TAPE DIMENSIONS
1.5 DIA
.06 DIA .16 ± .004 4.0 ± 0.1 1.75 .069 .630 7.5 .295 4.4 ± 0.1 .170 ± .004 8.0 ± 0.1 .315 ± .004 2.0 ± 0.05 .079 ± .002 H CAVITY HEIGHT “H” RSE “B” = 4.0 mm / .157 in RSE “C” = 3.0 mm / .118 in HOLDER TYPE FREQUENCY LOAD CAPACITANCE CIRCUIT TYPE TAPE AND REEL RSE IN KHz 6 OR 12.5 pF B T C