SURFACE MOUNT TUNING FORK CRYSTAL UNIT
FEATURES
SUITABLE FOR TIME OF DAY CLOCK APPLICATIONS
LOW PROFILE 2 mm HEIGHT
EXCELLENT FOR AUTOMATIC AND HIGH DENSITY SURFACE MOUNTING
SPECIFICATIONS
NOMINAL FREQUENCY
FREQUENCY TOLERANCE
TURNOVER TEMPERATURE
TEMPERATURE COEFFICIENT
LOAD CAPACITANCE
EQUIVALENT SERIES
RESISTANCE
DRIVER LEVEL
SHUNT CAPACITANCE
AGING(FIRST YEAR)
OPERATING TEMPERATURE
RANGE
STORAGE TEMPERATURE RANGE
SHOCK RESISTANCE
SOLDER REFLOW CONDITIONS
SERIES RSE H2
32.768 kHz
±20 PPM MAXIMUM(±50 PPM AND ±100 PPM AVAILABLE)
±25°C ±5 °C
(-0.035± 0.008) PPM/
∆
°C²
12.5 pF
55 kOHMS MAXIMUM
1.0 µW MAXIMUM
1.5 pF MAXIMUM
±5 PPM MAXIMUM
-40°C TO +85°C
-55°C TO +125°C
±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
230°C MAXIMUM FOR 20s MAXIMUM
OUTLINE DRAWING
MARKING AREA
1
7.3 MAX
.287 MAX
2
.169 MAX
2.6
.102
4.3 MAX
PIN 4
PIN 3
1.3 1.3
.051 .051
PIN 1
PIN 2
1.2
.047
3.88
.153
.094
2.4
4
3
1.2
.047
1.8
.071 2.0 MAX
.079 MAX
LEAD CONNECTION
SOLDER PAD LAYOUT
0 MIN
0.4
.016
Scale none Dimension in mm/inch
5.08
.200
REFLOW SOLDERING PROFILE
230 °C
2 TO 5 °C/s
REFLOW
20 s
30 s
COOLING
150 °C
100 °C
1 TO 4 °C/s
PREHEATING
230 s MAX
CARRIER TAPE DIMENSIONS
.16 ± .004
TEMPERATURE
200 °C
7.5
.295
.630
H
4.3 ± 0.1
.170 ± .004
8.0 ± 0.1
.315 ± .004
CAVITY HEIGHT "H"
RSE "A AND B" = 4.0 mm/.157 in
RSE "C AND D" = 3.0 mm/.118 in
60
TEMP
(°C)
1.75
.069
16
1.5 DIA
.06 DIA
2.0 ± 0.05
.079 ± .002
4.0 ± 0.1
25 °C
60 s MIN
TIME (SECONDS)
FREQUENCY VS. TEMPERATURE CURVE
-10
0
25
PACKAGING
330mm REEL DIAMETER
16mm TAPE WIDTH, 8mm PITCH
QUANTITY: 3000 PIECES PER REEL
PART NUMBERING SYSTEM
-50
HOLDER FREQUENCY
LOAD
TAPE AND REEL
- CAPACITANCE - H2 -
TYPE -
TR
RSE
IN kHz
12.5 pF
EXAMPLE: RSE-32.768-12.5-H2-TR
∆
f/fo (ppm)
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
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
