The HC49U Quartz Crystal features a rugged resistance weld
package which allows for a better aging factor than its solder seal
equivalent, HC18U.
OPTIONS
Extended Temp. Ranges
Tighter Tolerances/Stabilities
Mylar Spacer
Vinyl Sleeve
Third Lead
Tape and Reel
HC49U STANDARD SPECIFICATIONS *
PARAMETERS
Frequency Range
Frequency Tolerance
Frequency Stability, ref @ 25ºC
Temperature Range
Operating (T
OPR
)
Storage
(T
STG
)
Shunt Capacitance
(Co)
Load Capacitance
(C
L
)
Drive Level
Aging
Frequency Range
(MHz)
1.8432 ~ 2.000
2.000+ ~ 2.400
2.400+ ~ 3.000
3.000+ ~ 3.200
3.200+ ~ 3.700
3.700+ ~ 4.200
4.200+ ~ 4.900
4.900+ ~ 5.000
5.000+ ~ 6.000
CONDITIONS
Ta = 25ºC
Ta = -20ºC ~ +70ºC
MIN
1.8432
-30
-50
-20
-30
Customer Specified
1.8432 ~ 3.000 MHz
3.000+ ~ 180.000 MHz
Ta = 25ºC; per year
10.0
-5.0
MAX
180.000
+30
+50
+70
+85
7.0
Series
2.0
1.0
+5.0
Operating Mode
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
3rd OT
3rd OT
5th OT
7th OT
UNITS
MHz
PPM
PPM
ºC
pF
pF
mW
PPM
Max ESR
W
40
35
30
25
20
60
40
80
120
Operating Mode Max ESR
W
Frequency Range
(MHz)
750
Fundamental
6.000+ ~ 8.000
500
Fundamental
8.000+ ~ 10.000
Fundamental
300
10.000+ ~ 12.500
200
Fundamental
12.500+ ~ 16.000
120
Fundamental
16.000+ ~ 25.000
100
Fundamental
16.000 ~ 23.000
70
Fundamental
23.000+ ~ 65.000
Fundamental
55
60.000 ~ 110.000
50
Fundamental
110.000 ~ 180.000
* Other tolerances, stabilities & operating temperature ranges available. Consult Fox Customer Service for specific requirements, or use crystal order form on page 6.
All specifications subject to change without notice.
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