RSEB [RALTRON]
SURFACE MOUNT TUNING FORK CRYSTAL UNIT; 表面贴装音叉型晶体，
| 型号： | RSEB |
| 厂家： | 
Raltron Electronics Corporation |
| 描述： | SURFACE MOUNT TUNING FORK CRYSTAL UNIT |
| 文件： | 总1页 (文件大小：43K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SURFACE MOUNT TUNING FORK CRYSTAL UNIT
SERIES RSE A, B, C, D
FEATURES
SUITABLE FOR TIME OF DAY CLOCK APPLICATIONS
LOW FREQUENCY RANGE
EXCELLENT FOR AUTOMATIC AND HIGH DENSITY SURFACE MOUNTING
SPECIFICATIONS
NOMINAL FREQUENCY
32.768 KHz
24.00 TO 350.00 KHz
351.00 KHz TO 615.00 KHz
FREQUENCY TOLERANCE
TURNOVER TEMPERATURE
TEMPERATURE COEFFICIENT
LOAD CAPACITANCE
±20 PPM MAXIMUM (±50 PPM AND ±100 PPM AVAILABLE)
±25°C ±5°C
±25°C ±8°C
±25°C ±15°C
(-0.035 ± 0.008) PPM/ ∆ °C²
6.0 TO 12.5 pF
EQUIVALENT SERIES
RESISTANCE (ESR)
50 K OHM MAXIMUM
1.0 pF TYPICAL
50 K OHM MAXIMUM
20 K OHM MAXIMUM
0.9 pF TYPICAL
DRIVE LEVEL
1.0 µW MAXIMUM
0.95 pF TYPICAL
±5 PPM MAXIMUM
SHUNT CAPACITANCE
AGING (FIRST YEAR)
OPERATING TEMPERATURE
RANGE
-40°C TO +85°C
-55°C TO +125°C
STORAGE TEMPERATURE
RANGE
±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
SHOCK RESISTANCE
SOLDER REFLOW CONDITIONS
230 °C MAXIMUM FOR 20 s MAXIMUM
OUTLINE DRAWINGS
mm
Scale none Dimension in
RSE A, B
RSE C, D
PIN 4
PIN 1
PIN 3
PIN 2
inch
PIN 4
PIN 3
PIN 2
PIN 4
PIN 3
PIN 2
MARKING
AREA
MARKING
AREA
PIN 4
PIN 1
PIN 3
PIN 2
9.40
.370
10.41
.410
2.7 5.0
2.7
8.7
0.7
.028
4.8
.189
PIN 1
0.7
.028
PIN 1
.106 .197 .106
.343
LEAD CONNECTION “A”
LEAD CONNECTION "C"
SOLDER PAD LAYOUT
SOLDER PAD LAYOUT
PIN 4
PIN 3
PIN 4
PIN 1
PIN 3
PIN 2
0.51
.020
2.29
.090
0.51
.020
0.6
.024
0.6
.024
1.4
.055
1.4
.055
2.54
.100
2.54
.100
PIN 1
PIN 2
LEAD CONNECTION “B”
5.5
.217
LEAD CONNECTION "D"
CARRIER TAPE DIMENSIONS
REFLOW SOLDERING PROFILE
REFLOW
1.5 DIA
.06 DIA
2.0 ± 0.05
4.0 ± 0.1
230 °C
.16 ± .004
.079 ± .002
COOLING
PREHEATING
150 °C
15 - 20 s
H
25 °C
4.3 ± 0.1
8.0 ± 0.1
CAVITY HEIGHT "H"
30 - 40 s
RSE "A AND B" = 4.0 mm/.157 in
RSE "C AND D" = 3.0 mm/.118 in
.170 ± .004
.315 ± .004
TIME (SECONDS)
PACKAGING
330mm REEL DIAMETER
16mm TAPE WIDTH, 8mm PITCH
QUANTITY: RSE A OR B 2000 PIECES PER REEL
RSE C OR D 3000 PIECES PER REEL
FREQUENCY VS. TEMPERATURE CURVE
60
-10
25
TEMP
(°C)
0
PART NUMBERING SYSTEM
HOLDER
TYPE
LOAD
CAPACITANCE
CIRCUIT
TYPE
FREQUENCY
-
TAPE AND REEL
-50
A
B
C
D
-
-
-
RSE
IN KHz
6 OR 12.5 pF
TR
∆ f/fo (ppm)
EXAMPLE: RSE-32.768-12.5-B-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
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