SM Tuning Fork Crystal
Tuning Fork Quartz Crystal
The tuning fork crystal provides the circuit designer with the ultimate in
size, performance, and economic trade-offs. This highly reliable, stable,
and accurate device is available in two micro -miniature sizes for time
base applications operating from a 32.768KHz reference frequency.
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WX26B
Very small, compact SM packaging
Rugged, resistant to shock and vibration
Low cost
Ideal for time of watches and clocks
Complies with Directive 2002/95/EC (RoHS Compliant)
Specifications:
Frequency Range:
30.000 ~ 120.000 KHz
32.768 KHz
Operating Temperature:
Standard
-A
-B
-C
-L
WX26B
0°C ~ +50°C
-10°C ~ +60°C
-20°C ~ +70°C
-40°C ~ +85°C
Storage Temperature:
Frequency Tolerance:
(at 25°C)
-30°C ~ +80°C
±
50 ppm
±
30 ppm
±
20 ppm
-50
-30
-20
Temperature Coefficient:
Circuit Condition:
-0.04 ppm/°C
8 pF ~ 32 pF or series
12.5 pF (Standard) -None
Turnover Temperature:
Series Resistance:
25
±
5
°C
Maximum resistance corresponds
Temperature(degC)
300
All dimensions are in mm
Recommended Reflow Temperature Profile
to frequency. Please see R table.
250
Reflow set temperature peak temperature
235degC Less Than 5sec
225±5degC
10±1sec
200
Preheat set temperature
1~3.5degC/sec
200degC
Less than 35sec
1~4degC/sec
Cool down speed
Drive Level:
Series Capacitance:
Parallel Capacitance:
Aging:
Optional Features:
Note:
1.
2.
3.
1.0
μW
max
4.0 fF max
2.0 pF max
150
140degC
160degC
150±10degC
Reflow high temperature period
70~100sec
1~3degC/sec
100
Preheat time
50
Preheat temperature rise speed
Reflow temperature rise speed
±
3 ppm max per year
Tape & Reel
-Standard
Ordering Information
Product name + Temperature Range + CL +
Frequency Tolerance + Other Specification
Code + Frequency.
i.e. WX26BC50-32.768KHz
Other frequencies, tolerances, stabilities, and operating temperature ranges
available. Consult VTC Support for specific requirements.
Not all combinations of the above tolerances, stabilities, and temperature ranges
are available. Consult VTC Support if your requirement is not standard.
All specifications subject to change without notice.
Phone: +86 (10) 5820-3910
©
2006 by Vanlong Technology Co., Ltd.
Fax: +86 (10) 5820-3915
Email: sales@vanlong.com
Web: http://www.vanlong.com
W X26B
VANLONG [ VANLONG TECHNOLOGY CO., LTD. ]
