Low profile
2.0 x 1.6 mm Footprint
Extended Temp Range Option
RoHS Compliant
ECX-1637
SMD CRYSTAL
The sub miniature ECX-1637 is a very compact SMD Crystal.
The 2.0 x 1.6 x 0.45 mm ceramic package is ideal for today's
SMD manufacturing environment.
OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS
PARAMETERS
Frequency Range
Frequency Tolerance
Frequency Stability
Shunt Capacitance
Load Capacitance
Drive Level
Operating Temperature
Storage Temperature
Aging (Per Year)
CONDITIONS
at +25°C
-20 to +70°C
Specify in P/N
ECX-1637
MIN
20.000
TYP
MAX
80.000
± 50 *
± 50 *
5
UNITS
MHz
ppm
ppm
pF
pF
µW
°C
°C
ppm
8
-20
-55
100
+70
+125
±5
@ +25°C ±3°C
EQUIVALENT SERIES RESISTANCE/MODE OF OSCILLATION
FREQUENCY RANGE
(MHz)
MODE OF OSC MAX ESR
Ω
FREQUENCY RANGE
(MHz)
MODE OF OSC MAX ESR
Ω
20.00 ~ 23.999
Fundamental
100
26.000 ~ 39.999
Fundamental
60
24.000 ~ 25.999
Fundamental
80
40.000 ~ 80.000
Fundamental
50
DIMENSIONS (mm)
Pad Connections
1
2
3
4
In/Out
Gnd
Out/In
Gnd
Figure 1) Top, Side, Bottom, End views and
Crystal Connection (Top View)
Figure 2) Suggested Land Pattern
Custom Options
PART NUMBERING GUIDE: Example ECS-240-8-37-TR
ECS - Frequency Abbreviation - Load Capacitance - Package
240 = 24.000 MHz
See P/N Guide
8 =8 pF
S=Series
37 =
ECX-1637
Tolerance
Blank = Std
A = ± 25 ppm
J = ± 20 ppm
R = ± 15 ppm
C = ± 10 ppm
* Stability
Blank = Std
D = ± 100 ppm
E = ± 50 ppm
G = ± 30 ppm
H = ± 25 ppm
T = ± 20 ppm
W = ± 15 ppm
K = ± 10 ppm
Temp Range
Blank = Std
L = -10 ~ +70°C
M = -20 ~ +70°C
N = -40 ~ +85°C
P = -40 ~ +105°C
S = -40 ~ +125°C
U = -55 ~ +125°C
- Packaging
TR= Tape
& Reel
1K/Reel
*Consult Factory for available stability
options over extended temp range.
Rev. 11/11
1105 South Ridgeview Road
Olathe, KS 66062
Phone: 913.782.7787
Fax: 913.782.6991
www.ecsxtal.com
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