XT49S
Vishay Dale
Low Profile Holder Type Crystal Units
FEATURES
• Low cost
• Industry standard
• Wide frequency range
• Excellent aging
• Compliant to RoHS directive 2002/95/EC
This part is a miniature AT cut strip crystal unit with a low
profile package. It is with resistance weld.
STANDARD ELECTRICAL SPECIFICATIONS
PARAMETER
SYMBOL
CONDITION
UNIT
MHz
ppm
ppm
°C
MIN.
3.579545
- 30
- 50
- 10
- 55
-
TYP.
MAX.
66.000
+ 30
+ 50
+ 70
+ 125
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Frequency range
FO
-
Frequency tolerance
Temperature stability
Operating temperature range
Storage temperature range
Shunt capacitance
Load capacitance
Insulation resistance
Drive level
ΔF/FO
TC
at 25 °C
-
ref. to 25 °C
-
TOPR
TSTG
C0
-
°C
-
pF
-
CL
customer specified
100 VDC
pF
10
-
-
series
-
IR
MΩ
μW
500
-
DL
100
-
500
Aging (first year)
Fa
at 25 °C, per year
ppm
- 5
+ 5
EQUIVALENT SERIES RESISTANCE (ESR) AND MODE OF VIBRATION (MODE)
FREQUENCY RANGE (MHz)
MAX. ESR (Ω)
MODE
FREQUENCY RANGE (MHz)
MAX. ESR (Ω)
MODE
3.579 to 3.999
200
150
120
100
fundamental/AT
fundamental/AT
fundamental/AT
fundamental/AT
10.000 to 13.999
80
50
80
fundamental/AT
fundamental/AT
3rd overtone
4.000 to 4.999
14.000 to 39.999
5.000 to 5.999
40.000 to 66.000
6.000 to 9.999
DIMENSIONS in inches [millimeters]
0.403 [10.24] max.
0.150 [3.81] max.
0.435 [11.05] max.
0.138 [3.5]
max.
0.183 [4.65]
max.
0.500 [12.7]
min.
0.192 0.008
[4.88 0.2]
Ø 0.017 0.002
[0.43 0.05]
Document Number: 35014
Revision: 19-Mar-10
For technical questions, contact: frequency@vishay.com
www.vishay.com
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