FMXTA
SERIES
Communications Crystals
Tight Stability
Thru-Hole Package
Multiple Package Heights
Surface Mount Lead Forming
HC-49/U
SPECIFICATIONS
08 - Issue 4 - 071508
Parameter
Frequency Range
Operation Mode
Load Capacitance (CL)
Frequency Tolerance
Temperature Tolerance
Operating Temperature
Storage Temperature
Equivalent Series Resistance (ESR)
Shunt Capacitance (C0)
Drive Level
Aging @ 25°C
All specifications subject to change without notice.
Specification
1.8432 - 180.0 MHz
See Operation Mode and ESR Table
18 pF Std., 8 to 60 pF and Series available
±10 ppm @ 25°C Std. (See Cal. Tol. for Options)
±10 ppm Std. (See Temp. Tol. for Options)
-10 to +60°C Std. (See Temp. Range for Options)
-55 to +125°C
See Operation Mode and ESR Table
7 pF max.
50 uW typical, 1 mW max.
±3 ppm per year max.
HC-49/U
H
0.017
(0.43)
DIA.
0.500
(12.7)
MIN.
0.192
(4.88)
STANDARD MARKING
XXX.XXXM
XXXXXXX
FMI YYWW
XXX.XXXM FREQUENCY in MHz
XXXXXXX Part Number
FMI, Date Code
OPERATION MODE AND ESR TABLE
Frequency (MHz)
1.8432 - 2.9
3.0 - 3.2
3.3 - 3.4
3.5 - 6.9
7.0 - 9.9
10.0 - 14.9
15.0 - 35.0
24.0 - 67.9
68.0 - 85.0
60.0 - 89.9
90.0 - 125.0
125.1 - 180.0
Mode
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
3rd Overtone
3rd Overtone
5th Overtone
5th Overtone
5th Overtone
Max. ESR (Ohms)
400
150
90
50
30
25
20
40
60
50
60
90
0.183
(4.65)
MAX.
0.435
(11.05)
DIMENSION “H” TABLE
Package
A1
A2
Max. Height
0.530” (13.46mm)
0.456” (11.58mm)
NOTE: Standard Specifications for product indicated in
color
Dimensions:
Inches
(mm)
PART DESCRIPTION SYSTEM
FMXT A1 1 18 D D E - XXX.XXXXXXM - CM
Product Family
Comm. Grade Xtals
Package
A1
or A2
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
Options
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
8
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