XT26T_07 Datasheet, PDF (1/3 Pages) Vishay Siliconix – Tuning Fork Crystal

XT26T
Vishay Dale
Tuning Fork Crystal
FEATURES
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.
• Miniature package
• Low cost
• KHz frequency
• Tight tolerance
• 100 % Lead (Pb)-free and RoHS compliant
RoHS
COMPLIANT
STANDARD ELECTRICAL SPECIFICATIONS
PARAMETER
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)
SYMBOL
F_O
ΔF/F_O
K
T_OPR
T_STG
C_O
C₁
CL
IR
DL
Fa
Rs
CONDITION
at 25 °C
ref to 25 °C
100 V_DC
at 25 °C ± 3 °C
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]
UNIT
KHz
ppm
ppm/(Δ°C)²
°C
°C
pF
fF
pF
MΩ
µW
ppm
KΩ
MIN
- 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
PARABOLIC TEMPERATURE CURVE
TEMPERATURE (°C)
- 20 - 10 0
10 20 30 40
50 60 70
- 10
- 20
- 30
- 40
ORDERING INFORMATION
XT26T
MODEL
32.768 kHz
FREQUENCY/kHz
e2
JEDEC LEAD (Pb)-FREE
STANDARD
GLOBAL PART NUMBER
- 50
- 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 = - 0.042 ppm*(Δ°C)
= - 0.042 ppm*(20)²
= - 16.8 ppm (max)
X
T
2
6
T
T
A
3
2
K
7
6
8
MODEL
OPERATING PACKAGE
TEMPERA- CODE
TURE
FREQUENCY
www.vishay.com
6
For technical questions contact: [e-mail]
Document Number: 35017
Revision: 18-Oct-07