SURFACE MOUNT QUARTZ CRYSTAL UNIT
SERIES T20
FEATURES
LOW PROFILE (2.0mm MAX HEIGHT)
TIGHTER TOLERANCE AVAILABLE
WIDE FREQUENCY RANGE
SPECIFICATIONS
FREQUENCY RANGE
MODE OF OSCILLATION
CRYSTAL CUT
FREQUENCY TOLERANCE AT 25°C
FREQUENCY STABILITY OVER TEMPERATURE RANGE
OPERATING TEMPERATURE RANGE
STORAGE TEMPERATURE RANGE
AGING
LOAD CAPACITANCE
EQUIVALENT SERIES RESISTANCE (ESR)
DRIVE LEVEL
REFLOW CONDITIONS
3.579 MHz TO 60.00 MHz
FUNDAMENTAL OR THIRD OVERTONE
AT OR BT
±50, 100 PPM (STANDARD)
±50, 100 PPM (STANDARD)
STANDARD
EXTENDED
-10°C TO +60°C
-40°C TO +85°C
-55°C TO +105°C
±5 PPM PER YEAR MAX
SERIES TO 32 pF
SEE TABLE
100 uW TYPICAL
240°C FOR 10 s MAX
25.000 - 40.000
30.000 - 60.000
40
100
BT FUND
AT 3rd OT
7.000 - 14.900
15.000 - 23.900
24.000 - 36.000
50
40
30
AT FUND
AT FUND
AT FUND
3.579 - 4.000
4.000 - 4.900
5.000 - 6.900
FREQUENCY
(MHz)
ESR
(OHM)
MAX
180
150
100
MODE
AT FUND
AT FUND
AT FUND
OUTLINE DRAWING
Scale none Dimension in
12.0 ± 0.30
.47 ± .012
CARRIER TAPE DIMENSIONS
ø1.5 ± 0.1
ø.060 ± .004
2.0 ± 0.1
.079 ± .004
4.0 ± 0.1
.157 ± .004
11.5 ± 0.1
MARKING AREA
1.75 ± 0.1
.453 ± .004 .069 ± .004
mm
inch
10.70
.421
5.08
.20
ø2.2 ± 0.1
ø.070 ± .004
12.0 ± 0.1
.472 ± .004
5.2 ± 0.1
.205 ± .004
REFLOW SOLDERING PROFILE
2.0
.079
7.48
.294
5.08
.20
1.0
.039
2.4
.094
PACKAGING
250mm REEL DIAMETER
24mm TAPE WIDTH, 12mm PITCH
QUANTITY: 1000 PIECES PER REEL
EXAMPLE: T20-3.579545-18-EXT
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
.945 ± .031
24.0 ± 0.8
RALTRON [ Raltron Electronics Corporation ]
