XT49M
Vishay Dale
Low Profile SMD Type Crystal Units
FEATURES
• Low cost
• Industry standard
• Wide frequency range
• Excellent aging
• Surface mount
• Compliant to RoHS directive 2002/95/EC
This part is a miniature AT cut strip crystal unit packaged for
surface mounting.
STANDARD ELECTRICAL SPECIFICATIONS
PARAMETER
Frequency range
Frequency tolerance
Temperature stability
Operating temperature range
Storage temperature range
Shunt capacitance
Load capacitance
Insulation resistance
Drive level
Aging
SYMBOL
F
O
ΔF/F
O
T
C
T
OPR
T
STG
C
0
C
L
I
R
D
L
Fa
at 25 °C, per year
customer specified
100 V
DC
at 25 °C
ref. to 25 °C
CONDITION
UNIT
MHz
ppm
ppm
°C
°C
pF
pF
MΩ
μW
ppm
MIN.
3.579545
- 30
- 50
- 10
- 55
-
10
500
-
-5
TYP.
-
-
-
-
-
-
-
-
100
-
MAX.
66.000
+ 30
+ 50
+ 70
+ 125
7
series
-
500
+5
EQUIVALENT SERIES RESISTANCE (ESR) AND MODE OF VIBRATION (MODE)
FREQUENCY RANGE (MHz)
3.579 to 3.999
4.000 to 4.999
5.000 to 5.999
6.000 to 9.999
MAX. ESR (Ω)
200
150
120
100
MODE
fundamental/AT
fundamental/AT
fundamental/AT
fundamental/AT
FREQUENCY RANGE (MHz)
10.000 to 13.999
14.000 to 39.999
40.000 to 66.999
MAX. ESR (Ω)
80
50
80
MODE
fundamental/AT
fundamental/AT
3
rd
overtone
DIMENSIONS
in inches [millimeters]
0.403 [10.24] max.
0.150 [3.8]
max.
Crystal Unit
0.008 [0.2]
0.177 [4.5]
max.
max.
0.150 [3.8] max.
0.484 ± 0.024
[12.3 ± 0.6]
0.437 + 0.020/- 0.031
[11.1 + 0.50/- 0.80]
0.031 ± 0.012
[0.8 ± 0.3]
0.201 ± 0.020
[5.1 ± 0.5]
Insulation Base
0.012 [0.3]
max.
0.376 [9.55]
Crystal Lead
0.185 ± 0.012
[4.7 ± 0.3]
0.219 [5.55]
Solder
Pattern
0.081
[2.05]
Document Number: 35012
Revision: 19-Mar-10
For technical questions, contact:
frequency@vishay.com
www.vishay.com
1
Legal Disclaimer Notice
www.vishay.com
Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively,
“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
purpose, non-infringement and merchantability.
Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of
typical requirements that are often placed on Vishay products in generic applications. Such statements are not binding
statements about the suitability of products for a particular application. It is the customer’s responsibility to validate that a
particular product with the properties described in the product specification is suitable for use in a particular application.
Parameters provided in datasheets and / or specifications may vary in different applications and performance may vary over
time. All operating parameters, including typical parameters, must be validated for each customer application by the customer’s
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,
including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk.
Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for
such applications.
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or by any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners.
© 2017 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED
Revision: 08-Feb-17
1
Document Number: 91000
Sensor
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