Resistance Weld SMD Crystal
Model: HC49SDLF
Page 1 of 2
RoHS Compliant / Pb Free
Rev. 12/4/2006
FEATURES
OPTIONS
1 0 .3 M ax
• Stock Standard
(see page 2)
• Tolerances to 10 PPM
• Fundamental to 50 MHz
• Stabilities to 5 PPM
• Tape and Reel
(1,000 pcs. STD)
• Temperatures to -40ºC ~ +105ºC
• 3.2mm Height Max
(HC49SSDLF)
4 .5 M ax
• PART NUMBER
Part Number
278LF-Frequency-xxxxx
Model Number
HC49SDLF
Frequency Range (MHz)
3.200 ~ 70.000
3 .8 M ax
• STANDARD SPECIFICATIONS
1
PARAMETERS
Frequency Range
Frequency Tolerance @ 25ºC
Frequency Stability, ref @ 25ºC
Over Operating Temp Range
Temperature Range
Operating
(T
OPR
)
Storage
(T
STG
)
Shunt Capacitance (Co)
Load Capacitance
(C
L
)
Drive Level
Aging per year
Maximum Soldering Temp / Time
Moisture Sensitivity Level (MSL)
1
MAX
(unless otherwise noted)
3.200 ~ 70.000 MHz
±50 PPM
1,2
±50 PPM
1
-20ºC ~ +70ºC
1
-40ºC ~ +85ºC
7pF
10 pF ~ Series
(Customer Specified)
0.5 mW
±5 PPM
260ºC / 10 Seconds
1
0 .7 5 ±0 .35
1 3 .9 M ax
1 1 .7 M ax
5 .0 M ax
Recommended
HC49SD Solder Pad Layout
1 5 .0 ±0 .1
2 .0 ±0 .1
4 .0 ±0 .1
Other tolerances, stabilities & operating temperature ranges available. Consult Fox Customer
Service for specific requirements.
2
Crystal has a
±30ppm tolerance specification for all standard part numbers. These part numbers
are listed on page 2 of this datasheet.
All specifications subject to change without notice.
All dimensions are in millimeters.
TERMINATION FINISH: Sn/3.0Ag/0.5Cu
Frequency Range
(MHz)
3.200 ~ 3.500
3.500+ ~ 4.000
4.000+ ~ 5.000
5.000+ ~ 6.000
6.000+ ~ 7.000
7.000+ ~ 9.000
9.000+ ~ 13.000
13.000+ ~ 20.000
20.000+ ~ 50.000
27.000 ~ 70.000
Operating Mode
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
3rd OT
Max ESR
Ω
300
200
150
120
100
80
60
40
30
100
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27
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