XT49U Datasheet, PDF (1/1 Pages) Vishay Siliconix – Resistance Welded Holder Type Crystal Unit

XT49U
Vishay Dale
Resistance Welded Holder Type Crystal Unit
The XT49U series is an industry standard AT cut crystal
housed in a HC-49U package. It is our standard resistance
weld type quartz crystal.
STANDARD ELECTRICAL SPECIFICATIONS
PARAMETER
SYMBOL
CONDITION
Frequency Range
Frequency Tolerance
Temperature Stability
F_O
∆F/F_O
TC
at 25°C
ref to 25°C
Operating Temperature Range
Storing Temperature Range
Shunt Capacitance
Load Capacitance
T_OPR
T _STG
C_O
CL
Customer Specified
Insulator Resistance
Drive Level
IR
100V _DC
DL
Aging
Fa
at 25°C, per year
FEATURES
• Low cost
• Industry standard
• Excellent aging
• Wide frequency range
• ‘AT’ cut crystal
UNIT
MHz
ppm
ppm
°C
°C
pF
pF
MΩ
µW
ppm
MIN
1.8432
± 10
± 10
- 20
- 40
10
500
- 5.0
TYPICAL
± 30
± 30
100
EQUIVALENT SERIES RESISTANCE (ESR) AND MODE OF VIBRATION (MODE)
FREQUENCY RANGE (MHZ) MAX ESR (Ω)
MODE
FREQUENCY RANGE (MHZ) MAX ESR (Ω)
1.8432 to 1.999
650
Fundamental
6.000 to 7.999
50
2.000 to 2.999
500
Fundamental
8.000 to 12.999
35
3.000 to 3.499
250
Fundamental
13.000 to 32.000
25
3.500 to 3.999
150
Fundamental
24.000 to 29.999
60
4.000 to 4.999
100
Fundamental
30.000 to 79.999
40
5.000 to 5.999
80
Fundamental
80.000 to 125.000
90
DIMENSIONS in inches [millimeters]
0.403
[10.24] Max
0.150
[3.80] Max
0.530
[13.46] Max
0.435
[11.05] Max
0.183
[4.65] Max
MAX
125
± 50
± 50
+ 70
+ 85
7
Series
500
+ 5.0
MODE
Fundamental
Fundamental
Fundamental
3^rd Overtone
3^rd Overtone
5^th Overtone
0.500
[12.7] Min
0.192 0.008 [4.88 ± 0.2]
ORDERING INFORMATION
XT49U
MODEL
R
OTR
Blank = Standard
R = - 40°C to + 85°C
Ø 0.017 ± 0.002 [0.43 + 0.05]
- 20
LOAD
Blank = Series
- 16 = 16pF
- 20 = 20pF
- 30 = 30pF
- 32 = 32pF
SP
OPTIONS
Blank = Standard
SL = Sleeve
SP = Spacer
Document Number: 35015
Revision: 16-Apr-03
For technical questions contact: [e-mail]
4M
FREQUENCY/MHz
www.vishay.com
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