XT49ML
Vishay Dale
Low Profile SMD Type Crystal Units
FEATURES
• Low cost
• Industry standard
• Wide frequency range
• Excellent aging
• Surface mount
RoHS
COMPLIANT
This part is a miniature AT cut strip crystal unit packaged for
surface mounting.
• 100 % Lead (Pb)-free and RoHS compliant
STANDARD ELECTRICAL SPECIFICATIONS
PARAMETER
SYMBOL
CONDITION
UNIT
MIN
TYPICAL
MAX
Fo
Frequency Range
Frequency Tolerance
Temperature Stability
Operating Temperature Range
Storage Temperature Range
Shunt Capacitance
Load Capacitance
Insulator Resistance
Drive Level
MHz
ppm
ppm
°C
°C
pF
3.200
10
10
- 20
- 40
66.000
50
ΔF/Fo
TC
TOPR
TSTG
Co
CL
IR
DL
Fa
at 25 °C
ref to 25 °C
30
30
50
+ 70
+ 85
7
Customer Specified
100 VDC
pF
10
500
Series
MΩ
µW
ppm
100
500
+ 5.0
Aging
at 25 °C, per year
- 5.0
EQUIVALENT SERIES RESISTANCE (ESR) AND MODE OF VIBRATION (MODE)
FREQUENCY RANGE (MHz)
3.200 to 4.499
MAX ESR(Ω)
MODE
FREQUENCY RANGE (MHz) MAX ESR (Ω)
MODE
150
120
100
90
Fundamental/AT
Fundamental/AT
Fundamental/AT
Fundamental/AT
Fundamental/AT
9.000 to 9.999
10.000 to 12.999
13.000 to 30.000
30.000 to 66.000
60
50
40
80
Fundamental/AT
Fundamental/AT
Fundamental/AT
3rd Overtone
4.500 to 5.999
6.000 to 6.999
7.000 to 7.999
8.000 to 8.999
80
DIMENSIONS in inches [millimeters]
0.403
[10.24] Max
0.008
[0.2] Max
0.150 [3.8] Max
CRYSTAL UNIT
0.150
[3.8] Max
0.138
[3.5] Max
0.012 [0.3] Max
0.354 [9.0]
0.236 [6.0]
0.508 0.016 [12.9 0.4]
0.449 0.012 [11.4 0.3]
INSULATION BASE
CRYSTAL LEAD
0.078
[2.0]
0.031 0.012
[0.8 0.3]
0.185 0.012
[4.7 0.3]
SOLDER PATTERN
0.201 0.020 [5.1 0.5]
ORDERING INFORMATION
R
- 20
LOAD
Blank = Series
- 20 = 20 pF
- 30 = 30 pF
- 32 = 32 pF
XT49ML
MODEL
20
e2
OTR
FREQUENCY/MHz
JEDEC LEAD (Pb)-FREE
STANDARD
Blank = Standard
R = - 40 °C to + 85 °C
GLOBAL PART NUMBER
X
T
9
0
2
M
L
2
A
0
M
A
N
MODEL
LOAD
CODE
OPTIONS
FREQUENCY
www.vishay.com
14
For technical questions contact: frequency@vishay.com
Document Number: 35047
Revision: 18-Oct-07