Document Number: 35014
For technical questions contact: frequency@vishay.com
www.vishay.com
Revision: 25-Aug-05
11
Low Profile Holder Type Crystal Units
XT49S
Vishay Dale
FEATURES
Low cost
Industry standard
Wide frequency range
Excellent aging
100 % Lead (Pb)-free and RoHS compliant
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
MIN
TYPICAL
MAX
Frequency Range
F
O
MHz
3.200
66.000
Frequency Tolerance
F/F
O
at 25 C
ppm
10
30
50
Temperature Stability
TC
ref to 25 C
ppm
10
30
50
Operating Temperature Range
T
OPR
C
-20
+70
Storing Temperature Range
T
STG
C
-40
+85
Shunt Capacitance
C
O
pF
7
Load Capacitance
CL
Customer Specified
pF
10
Series
Insulator Resistance
IR
100 V
DC
M
500
Drive Level
DL
W
100
500
Aging (first year)
Fa
at 25 C, per year
ppm
-5.0
+5.0
DIMENSIONS in inches [millimeters]
EQUIVALENT SERIES RESISTANCE (ESR) AND MODE OF VIBRATION (MODE)
FREQUENCY RANGE (MHZ)
MAX ESR (
)
MODE
FREQUENCY RANGE (MHZ)
MAX ESR (
)
MODE
3.200 to 4.499
150
Fundamental/AT
9.000 to 9.999
60
Fundamental/AT
4.500 to 5.999
120
Fundamental/AT
10.000 to 12.999
50
Fundamental/AT
6.000 to 6.999
100
Fundamental/AT
13.000 to 30.000
40
Fundamental/AT
7.000 to 7.999
90
Fundamental/AT
30.000 to 66.000
80
3
rd
Overtone
8.000 to 8.999
80
Fundamental/AT
ORDERING INFORMATION
XT49S
MODEL
R
OTR
Blank = Standard
R = -40 C to +85 C
-20
LOAD
Blank = Series
-16 = 16 pF
-20 = 20 pF Standard
-30 = 30 pF
-32 = 32 pF
SP
OPTIONS
Blank = Standard
SP = Spacer
SL = Sleeve
12 M
FREQUENCY/MHz
e2
JEDEC Lead (Pb)-
Free
STANDARD
GLOBAL PART NUMBER
MODEL
LOAD
PACKAGE
OPTIONS
FREQUENCY
CODE
X
T
9
X
X
S
2
0
A
N
A
0.403 [10.24] Max
0.192 0.008 [4.88
0.2]
0.435 [11.0] Max
0.183
[4.65] Max
0.500
[12.7] Min
0.146 [3.70] Max
0.017
0.002 [0.43 0.05]
0.138
[3.5] Max
1
2
M
RoHS
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