XT26T Datasheet, PDF (1/1 Pages) Vishay Siliconix – Tuning Fork Crystal

Tuning Fork Crystal
XT26T
Vishay Dale
The tuning fork type quartz crystal provides ultimate in size,
performance and economic trade-offs. So it is used as a clock
source in communication equipment, measuring instrument,
microprocessor and other time management applications.
FEATURES
• Miniature package
• Low cost
• KHz frequency
• Tight tolerance
STANDARD ELECTRICAL SPECIFICATIONS
PARAMETER
SYMBOL CONDITION
UNIT
MIN
Frequency Range
Frequency Tolerance
Frequency Coefficient
Operating Temperature Range
Storing Temperature Range
Shunt Capacitance
Motional Capacitance
Load Capacitance
Insulation Resistance
Drive Level
Aging (first year)
Equivalent Series Resistance(ESR)
F_O
∆F/F_O
K
T_OPR
T_STG
C_O
C₁
CL
IR
DL
Fa
Rs
at 25°C
ref to 25°C
100V _DC
at 25°C ± 3°C
KHz
ppm
ppm/(∆°C)²
°C
°C
pF
fF
pF
MΩ
µW
ppm
KΩ
- 10
- 20
1
500
- 5.0
TYPICAL
32.768
± 20
0.85
2
12.5
MAX
- 0.042
+ 60
+ 70
2
4
1
+ 5.0
50
DIMENSIONS in inches [millimeters]
0.083
[2.1] Max
0.248
[6.3] Max
0.008
[0.20]
0.158
[4.0] Min
0.028
[0.7]
PARABOLIC TEMPERATURE CURVE
TEMPERATURE (°C)
- 20 - 10 0
10 20 30 40
50 60 70
- 10
- 20
- 30
- 40
- 50
ORDERING INFORMATION
XT26T
MODEL
32.768KHz
FREQUENCY/KHz
- 60
∆F/f(ppm)
To determine frequency stability, use parabolic curvature (k).
For example: What is stability at 45°C?
1) Change in Temperature (°C) = 45 - 25 = 20°C
2) Change in Frequency = - 0.042ppm*(∆°C)
= - 0.042ppm*(20)²
= - 16.8ppm(max)
Document Number: 35017
Revision: 28-Mar-03
For technical questions contact: [e-mail]
www.vishay.com
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