ꢀLow profile
ECX-1637
ꢀ2.0 x 1.6 mm Footprint
ꢀExtended Temp Range Option
ꢀRoHS Compliant
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
ECX-1637
UNITS
PARAMETERS
CONDITIONS
MIN
TYP
MAX
Frequency Range
20.000
80.000
± 50 *
± 50 *
5
MHz
ppm
ppm
pF
pF
µW
°C
Frequency Tolerance
Frequency Stability
Shunt Capacitance
Load Capacitance
Drive Level
Operating Temperature
Storage Temperature
Aging (Per Year)
at +25°C
-20 to +70°C
Specify in P/N
@ +25°C ±3°C
8
100
+70
+125
±5
-20
-55
°C
ppm
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
24.000 ~ 25.999
Fundamental
Fundamental
100
80
26.000 ~ 39.999
40.000 ~ 80.000
Fundamental
Fundamental
60
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
Tolerance
* Stability
Temp Range - Packaging
240 = 24.000 MHz
See P/N Guide
8 =8 pF
S=Series
37 =
ECX-1637
Blank = Std
A = ± 25 ppm
J = ± 20 ppm
R = ± 15 ppm
C = ± 10 ppm
Blank = Std
Blank = Std
TR= Tape
& Reel
1K/Reel
D = ± 100 ppm
E = ± 50 ppm
G = ± 30 ppm
H = ± 25 ppm
T = ± 20 ppm
W = ± 15 ppm
K = ± 10 ppm
L = -10 ~ +70°C
M = -20 ~ +70°C
N = -40 ~ +85°C
P = -40 ~ +105°C
S = -40 ~ +125°C
U = -55 ~ +125°C
*Consult Factory for available stability
options over extended temp range.
Rev. 11/11
1105 South Ridgeview Road
z
Olathe, KS 66062
z
Phone: 913.782.7787
z
Fax: 913.782.6991
z
www.ecsxtal.com