FMXTU
SERIES
Communications Crystals
Miniature Thru-Hole Packages
Tight Stability
Multiple Packages
Surface Mount Lead Forming
UM-1/UM-5
SPECIFICATIONS
08 - Issue 4 - 071508
Parameter
Specification
Frequency Range
6 - 180 MHz FMXTU1 / 10 - 180 MHz FMXTU5
Operation Mode
See Operation Mode and ESR Table
Load Capacitance (CL)
18 pF Std., 8 to 60 pF and Series available
Frequency Tolerance
±10 ppm @ 25°C Std. (See Cal. Tol. for Options)
Temperature Tolerance
±10 ppm Std. (See Temp. Tol. for Options)
Operating Temperature
-10 to +60°C Std. (See Temp. Range for Options)
Storage Temperature
-55 to +125°C
Equivalent Series Resistance (ESR) See Operation Mode and ESR Table
Shunt Capacitance (C0)
7 pF max.
Drive Level
50
μW
typical, 1 mW max.
Aging @ 25°C
±3 ppm per year max.
All specifications subject to change without notice.
0.319
(8.1)
MAX.
0.500
(12.7)
MIN.
0.013
(0.33)
UM-1
0.148
(3.76)
0.126
(3.2)
MAX.
STANDARD MARKING
OPERATION MODE AND ESR TABLE FOR UM-1 PKG.
Frequency (MHz)
6.0 - 9.9
10.0 - 14.9
15.0 - 39.9
40.0 - 80.0
70.0 - 124.9
125.0 - 180.0
Mode
Fundamental
Fundamental
Fundamental
3rd Overtone
5th Overtone
5th Overtone
Max. ESR (Ohms)
40
30
20
40
60
100
XXX.XXXM
XXXXXXX
FMI YYWW
XXX.XXXM FREQUENCY in MHz
XXXXXXX Part Number
FMI, Date Code
0.311
(7.9)
MAX.
0.236
(6.0)
MAX.
0.013
(0.33)
UM-5
0.500
(12.7)
MIN.
OPERATION MODE AND ESR TABLE FOR UM-5 PKG.
Frequency (MHz)
10.0 - 15.9
16.0 - 26.9
27.0 - 39.9
40.0 - 80.0
70.0 - 124.9
125.0 - 180.0
Mode
Fundamental
Fundamental
Fundamental
3rd Overtone
5th Overtone
5th Overtone
Max. ESR (Ohms)
60
30
30
60
90
100
0.148
(3.76)
0.126
(3.2)
MAX.
NOTE: Standard Specifications for product indicated in
color
0.311
(7.9)
MAX.
Dimensions:
Inches
(mm)
PART DESCRIPTION SYSTEM
MARKING: See Page 52, Format A
FMXT U1 1 18 D D E - XXX.XXXXXXM - CM
Options
Product Family
Comm. Grade Xtals
Package
U1
or U5
Mode
1 - Fundamental
3 - 3rd Overtone
5 - 5th Overtone
Load Cap. (CL)
18 - Standard (pF)
00 - Series
## - Custom (pF)
Cal.
B
C
D
E
F
G
X
Tol. @ 25°C
±5.0 ppm
±7.5 ppm
±10 ppm
±15 ppm
±20 ppm
±25 ppm
Custom
Frequency (MHz)
Temp. Tol.
A ±2.5 ppm
B ±5.0 ppm
C ±7.5 ppm
D ±10 ppm
E ±15 ppm
F ±20 ppm
G ±25 ppm
X Custom
Temp. Range
A 0 to 70 °C
B -20 to 70 °C
C -40 to 85 °C
D -10 to 50 °C
E -10 to 60 °C
F -30 to 60 °C
J 0 to 50 °C
X Custom
TR - Tape & Reel
BI - Base Insulator
GB - Gnd Lead Base
GT - Gnd Lead Top
LT - Lead Trimming
LF - Lead Forming
PD - Parameter Data
TD - Temp. Data
TG - Temp. Grading
CM - Custom Mark
BLANK - None Req’d.
-55°C TO +125°C Available, Limited Stability Options,
please consult the factory.
1-800-800-XTAL
[9825]
www.fmi-inc.com
9
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