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
SERIES H250A
SURFACE MOUNT MICROPROCESSOR CRYSTAL
SERIES H250A
FREQUENCY RANGE 3.579545 MHz TO 60.000 MHz
FREQUENCY TOLERANCE AT 25° C ±100 PPM MAXIMUM (±50 PPM AVAILABLE)
FREQUENCY STABILITY OVER TEMPERATURE ±100 PPM MAXIMUM (±50 PPM AVAILABLE)
OPERATING TEMPERATURE RANGE -10° C TO +70° C STANDARD
-40° C TO +85° C EXTENDED
STORAGE TEMPERATURE RANGE -40° C TO +85° C
AGING ±5 PPM PER YEAR MAXIMUM
LOAD CAPACITANCE 12 pF TO 32 pF OR SERIES
SHUNT CAPACITANCE 7 pF MAXIMUM
EQUIVALENT SERIES RESISTANCE (ESR) SEE TABLE 1
DRIVE LEVEL 0.3 mW MAXIMUM
SHOCK RESISTANCE ±5 PPM MAXIMUM 75 cm DROP TEST IN 3 AXES ONTO
A HARD SURFACE
VIBRATION RESISTANCE FREQUENCY 10 TO 55 Hz TOTAL AMPLITUDE 1.5 mm
FOR 2 h IN 3 AXES
REFLOW CONDITIONS 240° C FOR 5 s MAXIMUM
HOLDER TYPE -FREQUENCY -LOAD CAPACITANCE -MODE -
EXTENDED
TEMPERATURE -TAPE AND REEL
H250A IN MHz 12 TO 32 pF FOR PARALLEL
S FOR SERIES FUND
3OT FUNDAMENTAL
THIRD OVERTONE EXT TR
TABLE 1
FREQUENCY
(MHz) MAX ESR
(OHM) FREQUENCY
(MHz) MAX ESR
(OHM)
3.579545 300 14.31818 100
3.6864 300 16.00 100
4.00 200 16.9344 100
6.00 200 19.6608 100
8.00 120 20.00 100
12.00 100 24.00 100
EXAMPLE: H250A-10.000-20-EXT-TR
PREHEATING
REFLOW
COOLING
240 °C
150 °C
25 °C
TIME (SECONDS)
TEMPERATURE
100 s TYPICAL 5 s
.059 ± .004 DIA 2.0 ± 0.1
1.5 ± 0.1DIA
.079 ± .004 .157 ± .004
4.0 ± 0.1
1.75 ± 0.1
.069 ± .004
11.5 ± 0.1
.453 ± .004
24 ± 0.3
.945 ± .012
12 ± 0.1
.472 ± .004
10.75 ± 0.1
.423 ± .004
2.8 ± 0.1
.110 ± .004
SPECIFICATIONS
FEATURES
OUTLINE DRAWING
P ART NUMBERING SYSTEM
CARRIER T APE DIMENSIONS
SOLDER REFLOW PROFILE
3.0
7.0
2.0 0.8
.276
.031
.079
.118
1.5
.098
2.5
MARKING
AREA
± .098 .012
±
2.5 0.3
± .453 .012
± 11.5 0.3
± .465 .012
± 11.8 0.3
± .189 .012
± 4.8 0.3
± .216 .012
± 5.5 0.3
2.7 2.7
5.0
4.0
2.5
2.5
.106 .106
.161
.098
.098
.197
Scale none Dimension in mm
inch
SOLDER P A TTERN
330mm REEL DIAMETER
24mm T APE WIDTH
12mm PITCH
QUANTITY: 1000 PIECES PER REEL
PACKAGING
LOW P ACKAGE HEIGHT OF 2.5 mm
WIDE FREQUENCY RANGE
LOW COST
