Ceramic SMD Crystal
Model: FX252B Series
Page 1 of 2
RoHS Compliant / Pb Free
Rev. 10/20/2008
http://www.foxonline.com/need_a_sample.htm
FEATURES
• Ultra Low Profile
• Fundamental
“Now available as FX252BS. See PCN310 for details.”
•
• PART NUMBER
Learn More - Internet Required
Part Number
637S-Frequency-xxxxx
Model Number
Frequency Range (MHz)
16.000 ~ 54.000
2 .5 ±0.1
FX252B
#4
#1
#3
2 .0 ±0.1
• 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
Reflow Soldering Temperature
Moisture Sensitivity Level (MSL)
Termination Finish
1
MAX
(unless otherwise noted)
16.000 ~ 54.000 MHz
±50 PPM
1
±50 PPM
1
-10ºC ~ +60ºC
1
-40ºC ~ +85ºC
5 pF
10 pF~Series
(Customer Specified)
100 µW
±5 PPM
260ºC x 10 Seconds (2 Cycles)
1
Au/Sn
#1
#2
T o p V iew
0 .6 M ax
1 .0
#2
0 .7
#4
B o ttom
#3
Tolerances and stabilities to ±10 PPM, operating temps to -40ºC ~ 85ºC available.
Note: Dimensional drawing is for reference to critical specifications defined by size
measurements. Certain non-critical visual attributes, such as side castellations, etc. may vary.
The above specifications, having been carefully prepared and checked, is believed to be ac-
curate at the time of publication; however, no responsibility is assumed by Fox Electronics for
inaccuracies
.
All specifications subject to change without notice.
R e co m m ended
S o ld e r P a d Layout
0 .95
0 .85
0 .3
0 .5
Developed Frequencies
16.000
19.680
24.000
32.000
54.000
Frequency Range
(MHz)
16.000 ~ 26.000
26.000+ ~ 35.000
35.000+ ~ 54.000
19.200
19.800
26.000
48.000
All dimensions are in millimeters.
Operating Mode
Fundamental
Fundamental
Fundamental
Max ESR
Ω
200
100
50
FOXElectronics
5570 Enterprise Parkway Fort Myers, Florida 33905 USA +1.239.693.0099 FAX +1.239.693.1554
http://www.foxonline.com
© 2009 FOX ELECTRONICS | ISO9001:2000 Certified
EMEA
Tel/Fax: +44 .1767.312632 |
Asia
Hong Kong Tel: +852.2854.4285 Fax +852.2854.4282 |
Japan
Tel: +81.3.3374.2079 Fax: +81.3.3374.5221
19
Ceramic SMD Crystal
Model: FX252B Series
Page 2 of 2
RoHS Compliant / Pb Free
Rev. 10/20/2008
http://www.foxonline.com/need_a_sample.htm
• TAPE SPECIFICATIONS
(millimeters)
MODEL
FX252B
A B C
∅1.5
4.0 4.0
• REEL SPECIFICATIONS
(millimeters)
G H
J
K
L
M
H
2.0
∅13 ∅21 ∅60 ∅180
9.0 2.0
D
E
F
STD Reel QTY
MODEL
FX252B
3.5 8.0 0.65
3,000
FOXElectronics
5570 Enterprise Parkway Fort Myers, Florida 33905 USA +1.239.693.0099 FAX +1.239.693.1554
http://www.foxonline.com
© 2009 FOX ELECTRONICS | ISO9001:2000 Certified
EMEA
Tel/Fax: +44 .1767.312632 |
Asia
Hong Kong Tel: +852.2854.4285 Fax +852.2854.4282 |
Japan
Tel: +81.3.3374.2079 Fax: +81.3.3374.5221
