XTUM1
Vishay Dale
Resistance Welded Miniature Crystal Units
FEATURES
• Low cost
• Industry standard
• Small compact size
• Wide frequency range
• High stability
RoHS
COMPLIANT
The XTUM-1 crystal unit is a miniature resistance welded
package that provides excellent hermetic seal and frequency
aging. The frequency range till 125 Mhz and miniature size is
ideal for communication equipment.
• "AT" cut crystal
• 100 % Lead (Pb)-free and RoHS compliant
STANDARD ELECTRICAL SPECIFICATIONS
PARAMETER
SYMBOL
CONDITION
UNIT
MIN
TYPICAL
MAX
Frequency Range
Frequency Tolerance
Temperature Stability
Operating Temperature Range
Storing Temperature Range
Shunt Capacitance
Load Capacitance
Insulator Resistance
Drive Level
FO
ΔF/FO
TC
TOPR
TSTG
CO
CL
IR
DL
Fa
MHz
ppm
ppm
°C
°C
pF
10
125
50
50
at 25 °C
see Frequency Stability
vs Temperature Range
10
10
- 40
+ 85
7
Series
Customer Specified
100 VDC
pF
10
500
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 STABILITY VS
TEMPERATURE RANGE (25 °C ꢀ °C)
FREQUENCY RANGE (MHz) MAX ESR (Ω)
MODE
TEMPERATURE
RANGE (°C)
FREQUENCY STABILITY (PPM)
10.000 to 12.999
13.000 to 19.999
20.000 to 29.999
30.000 to 39.999
40.000 to 59.999
60.000 to 79.999
80.000 to 125.000
60
40
30
60
50
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
3rd Overtone
5th Overtone
5
10
x
15
x
20
x
30
x
50
x
0 to 50
x
- 10 to 60
- 20 to 70
- 40 to 85
x
x
x
x
x
x
x
x
x
x
x
50
100
x
x
x
DIMENSIONS in inches [millimeters]
ORDERING INFORMATION
0.094 [2.40] Max
0.311 [7.90] Max
0.280
[7.10] Max
0.126
[3.20] Max
XTUM1
MODEL
-18
LOAD
20 M
FREQUENCY/MHz
e2
JEDEC
LEAD
(Pb)-FREE
STANDARD
0.319
[8.10] Max
Blank = Series
- 32 = 32 pF
- 18 = 18 pF
Standard
0.500
[12.7] Min
0.148 0.008 [3.75 0.2]
0.014 0.002 [0.36 0.05]
GLOBAL PART NUMBER
X
T
U
1
1
8
A
N
A
2
0
M
MODEL
LOAD
PACKAG
CODE
E
OPTIONS
FREQUENCY
Document Number: 35020
Revision: 18-Oct-07
For technical questions contact: frequency@vishay.com
www.vishay.com
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