ECX-1637
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.
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OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS
ECX-1637 SMD CRYSTAL
PARAMETERS
CONDITIONS
ECX-1637
TYP
UNITS
MIN
MAX
Frequency
16.000
80.000
MHz
Fundamental
@ +25°C
-20 ~ +70°C
Co
Mode of Oscillation
Frequency Tolerance*
Frequency Stability*
Shunt Capacitance
Load Capacitance
Drive Level
± 50
± 50
5
ppm
ppm
pF
Specify in P/N
DL
8
pF
• Low Profile
100
+70
+85
±5
μW
°C
• 2.0 x 1.6 mm Footprint
• Extended Temp. Range Option
• RoHS Compliant
Operating Temperature*
Storage Temperature
Aging (First Year)
Topr
-20
-40
Tstg
°C
@ +25°C ±3°C
ppm
DIMENSIONS (mm)
Frequency (MHz)
16.000 ~ 23.999
24.000 ~ 25.999
26.000 ~ 39.999
40.000 ~ 80.000
ESR Ω Max.
100
80
60
50
Pad Connections
1
2
3
4
In/Out
Gnd
Out/In
Gnd
Figure 1) Top, Side, and Bottom
Crystal is symmetrical, pad 1 & 3 are interchangeable.
Chamfer on the bottom pad has no electrical
significance.
Figure 2) Suggested land
PART NUMBERING GUIDE:
Example ECS-240-8-37-TR
ECS - FREQUENCY ABBREVIATION
LOAD
PACKAGE
AVAILABLE OPTIONS
PACKAGING
Tolerance
Stability
Temp Range
CAPACITANCE
8 = 8 pF
10 = 10 pF
S=Series
Blank = Std
240 = 24.000 MHz
ECS
Blank= Std
Blank= Std
TR =
Tape
& Reel
1K/Reel
-37 =
ECX-1637
A = ± 25 ppm
J = ± 20 ppm
R = ± 15 ppm
C = ± 10 ppm
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
Y = -30 ~ +85°C
N = -40 ~ +85°C
P = -40 ~ +105°C
S = -40 ~ +125°C
U = -55 ~ +125°C
See P/N Guide
* Specify available options in P/N.
† Contact ECS for availability over extended temp range.
Rev.2017
15351 West 109th Street | Lenexa, KS 66219 | Phone: 913.782.7787 | Fax: 913.782.6991 | www.ecsxtal.com