SURFACE MOUNT TUNING FORK CRYSTAL UNIT
FEATURES
SUITABLE FOR TIME OF DAY CLOCK APPLICATIONS
LOW PROFILE
1.3
mm HEIGHT
EXCELLENT FOR AUTOMATIC AND HIGH DENSITY SURFACE MOUNTING
SPECIFICATIONS
NOMINAL FREQUENCY
32.768 kHz
FREQUENCY TOLERANCE
鹵20 PPM, 鹵50 PPM
TURNOVER TEMPERATURE
鹵25擄C 鹵5擄C
TEMPERATURE COEFFICIENT
-(0.035鹵0.01) PPM/擄C虜
LOAD CAPACITANCE
12.5 pF
EQUIVALENT SERIES RESISTANCE
65 kOHMS MAXIMUM
DRIVE LEVEL
0.1 碌W TYP, 1 碌W MAX.
SHUNT CAPACITANCE
0.8 pF TYPICAL
AGING (FIRST YEAR)
鹵3 PPM/YEAR MAXIMUM
OPERATING TEMPERATURE RANGE
-20擄C TO +70擄C
STORAGE TEMPERATURE RANGE
-40擄C TO +125擄C
INSULATION RESISTANCE
500 MOHMS MINIMUM
SHOCK RESISTANCE
鹵5 PPM MAXIMUM
OUTLINE DRAWING
CARRIER TAPE DIMENSIONS
0.3
0.012
0.55
0.021
.16 鹵 .004
SERIES RSE H14
0.3
0.012
0.6
.024
#4
1.4鹵0.1
0.055鹵.004
#1
0.1
.004
6.7
0.263
#2
1.3鹵0.1
0.051鹵.004
1.2 5.1
0.047 0.2
0.6
.024
0.1鹵.005
.004鹵.0002
16
.630
3.0
4.4 鹵 0.1
.170 鹵 .004
8.0 鹵 0.1
.315 鹵 .004
. 0.118
#3
MARKING
AREA
3
6.9鹵0.1
0.27鹵0.004
SOLDER PAD LAYOUT
0.15
0.006
PIN 4
PIN 1
PIN 3
PIN 2
TEMPERATURE
REFLOW SOLDERING PROFILE
260 擄C
2 TO 5 擄C/s
200 擄C
REFLOW
5s
30 s
COOLING
150 擄C
100 擄C
1 TO 4 擄C/s
PREHEATING
230 s MAX
0.4
0.015
LEAD CONNECTION
0.2
0.007
0.25
0.009
#1
#4
#2
#3
0.2
0.007
25 擄C
60 s MIN
TIME (SECONDS)
FREQUENCY VS. TEMPERATURE CURVE
-10
0
25
60
TEMP
(擄C)
PACKAGING
330mm REEL DIAMETER
16mm TAPE WIDTH, 8mm PITCH
QUANTITY: 3000 PIECES PER REEL
PART NUMBERING SYSTEM
-50
LOAD
HOLDER
FREQUENCY
-
- CAPACITANCE -
TYPE
RSE
IN kHz
12.5 pF
鈭?/div>
f/fo (ppm)
H14
-
TAPE & REEL
TR
EXAMPLE: RSE-32.768-12.5-H14-TR
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
7.5
.295
1.75
.069
1.5 DIA
.06 DIA
2.0 鹵 0.05
.079 鹵 .002
4.0 鹵 0.1
1
