Resistance Weld Thru-Hole Crystal
RoHS Compliant / Pb Free
Model: HC49ULF
Rev. 2/27/2006
Page 1 of 2
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FEATURES
• Low Cost
OPTIONS
• Tolerances to 5 PPM
• Stocking Standard (see page 2) • Stabilities to 3 PPM
• High Frequency Range
• Fundamental to 40 MHz
• Resistance Weld
• Temperatures to -40ºC ~ +105ºC
• Mylar Spacer
• Vinyl Sleeve
• Third Lead
• PART NUMBERLearn More - Internet Required
Frequency Range (MHz)
Part Number
Model Number
HC49ULF
281LF-Frequency-xxxxx
1.8432 ~ 180.000
• STANDARD SPECIFICATIONS1
MAX (unless otherwise noted)
1.8432 ~ 180.000 MHz
±30 PPM
PARAMETERS
Frequency Range
Frequency Tolerance @ 25ºC
Frequency Stability, ref @ 25ºC
Over Operating Temp Range
Temperature Range
±50 PPM
Operating (TOPR)
-20ºC ~ +70ºC
-40ºC ~ +85ºC
7.0 pF
Storage
(TSTG)
Shunt Capacitance (Co)
Load Capacitance (CL)
10 pF ~ Series
(Customer Specified)
Drive Level
1.8432 ~ 3.000 MHz
3.000+ ~ 180.000 MHz
Aging per year
2.0 mW
1.0 mW
±5 PPM
1
Other tolerances, stabilities & operating temperature ranges available. Consult Fox Customer
Service for specific requirements.
All specifications subject to change without notice.
Frequency Range
Operating Mode
Max ESR Ω
All dimensions are in millimeters.
TERMINATION FINISH: Sn/3.0Ag/0.5Cu
(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
6.000+ ~ 8.000
8.000+ ~ 10.000
10.000+ ~ 12.500
12.500+ ~ 16.000
16.000+ ~ 40.000
23.000+ ~ 75.000
60.000 ~ 110.000
110.000 ~ 180.000
750
500
300
200
120
100
70
55
50
40
35
30
25
20
40
80
120
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
3rd OT
5th OT
7th OT
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