Ceramic SMD Crystal
RoHS Compliant / Pb Free
Model: FX425B
Rev. 5/10/2006
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FEATURES
• Ultra Low Profile
• Fundamental
OPTIONS
• Tolerances to ± 10 PPM
• Stabilities to ± 10 PPM
• Temp Range to -40ºC ~ +85ºC
• PART NUMBER Learn More - Internet Required
SELECTION
4.0±0.2
Model Number
Frequency Range (MHz)
Part Number
519-Frequency-xxxxx
FX425B
12.000 ~ 50.000
#4
#1
#3
#2
• STANDARD SPECIFICATIONS1
2.5±0.2
MAX (unless otherwise noted)
12.000 ~ 50.000 MHz
±50 PPM1
PARAMETERS
Frequency Range
Frequency Tolerance @ 25ºC
Frequency Stability, ref @ 25ºC
Over Operating Temp Range
Temperature Range
±50 PPM1
0.7±0.1
0.7
-10ºC ~ +60ºC1
Operating (TOPR)
-40ºC ~ +85ºC
7pF
10 pF ~ Series
Storage
(TOPR)
Shunt Capacitance (Co)
Load Capacitance (CL)
Drive Level
#2
#3
#1
#4
0.1 mW
±5.0 PPM
260ºC x 10 Seconds (2 Cycles)
Aging per year
Reflow Soldering Temperature
Moisture Sensitivity Level (MSL)
Termination Finish
1
2.0
Ni/Au
1
Tighter tolerances, stabilities, and wider temp ranges available.
Note: The above specifications, having been carefully prepared and checked, is believed to be
accurate at the time of publication; however, no responsibility is assumed by Fox Electronics
for inaccuracies.
All specifications subject to change without notice.
Recommended
Solder Pad Layout
Frequency Range
Operating Mode
Max ESR Ω
(MHz)
1.4
Fundamental
Fundamental
120
80
12.000 ~ 12.999999
13.000 ~ 50.000
1.2
1.7
3.0
All dimensions are in millimeters.
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