RSE Datasheet, PDF (1/1 Pages) Recom International Power – 2:1 Wide Input Range

SURFACE MOUNT TUNING FORK CRYSTAL UNIT
FEATURES
SUITABLE FOR TIME OF DAY CLOCK APPLICATIONS
SERIES RSE H2
LOW PROFILE 2 mm HEIGHT
EXCELLENT FOR AUTOMATIC AND HIGH DENSITY SURFACE MOUNTING
SPECIFICATIONS
NOMINAL FREQUENCY
32.768 kHz
FREQUENCY TOLERANCE
±20 PPM MAXIMUM(±50 PPM AND ±100 PPM AVAILABLE)
TURNOVER TEMPERATURE
±25°C ±5 °C
TEMPERATURE COEFFICIENT
(-0.035± 0.008) PPM/ ∆°C²
LOAD CAPACITANCE
12.5 pF
EQUIVALENT SERIES
RESISTANCE
55 kOHMS MAXIMUM
DRIVER LEVEL
1.0 µW MAXIMUM
SHUNT CAPACITANCE
1.5 pF MAXIMUM
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 20s MAXIMUM
OUTLINE DRAWING
4
3
MARKING AREA
PIN 4 PIN 3
1 _{7.3 MAX} 2
.287 MAX
PIN 1 PIN 2
LEAD CONNECTION
1.2
3.88
1.2
.047
.153
.047
SOLDER PAD LAYOUT
0.4
.016
5.08
.200
Scale none Dimension in mm/inch
REFLOW SOLDERING PROFILE
230 °C
200 °C
2 TO 5 °C/s
REFLOW
20 s
30 s
150 °C
100 °C
PREHEATING
1 TO 4 °C/s
230 s MAX
COOLING
CARRIER TAPE DIMENSIONS
1.5 DIA
.06 DIA
2.0 ± 0.05
.079 ± .002
4.0 ± 0.1
.16 ± .004
25 °C
60 s MIN
TIME (SECONDS)
4.3 ± 0.1
.170 ± .004
8.0 ± 0.1
.315 ± .004
H
CAVITY HEIGHT "H"
RSE "A AND B" = 4.0 mm/.157 in
RSE "C AND D" = 3.0 mm/.118 in
FREQUENCY VS. TEMPERATURE CURVE
-10
25
60
0
TEMP
(°C)
PACKAGING
330mm REEL DIAMETER
16mm TAPE WIDTH, 8mm PITCH
QUANTITY: 3000 PIECES PER REEL
-50
∆ f/fo (ppm)
PART NUMBERING SYSTEM
HOLDER FREQUENCY
LOAD
TAPE AND REEL
TYPE -
RSE
- CAPACITANCE - H2 -
IN kHz
12.5 pF
TR
EXAMPLE: RSE-32.768-12.5-H2-TR
Raltron Electronics Corporation 10651 NW 19th St. Miami, Florida 33172 U.S.A.
Tel: [phone] Fax: [phone] e-mail: [e-mail] Internet: http://www.raltron.com