ECX-1637 [ECS]
SMD CRYSTAL; SMD晶体
ECS, INC. 
ꢀ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
80.000
± 50 *
± 50 *
5.0
Frequency
Frequency Tolerance
Frequency Stability (ref @ 25°C)
Shunt Capacitance
FO
24.000
MHz
ppm
ppm
pF
@ +25°C
-20 ~ +70°C
Load Capacitance
8
pF
Equivalent Series Resistance
Drive Level
Fundamental Mode
100
100
+70
+85
± 5
Ω
µW
°C
Operating Temperature
Storage Temperature
Aging Characteristics (Per Year)
Topr
Tstg
-20
-40
°C
@ +25°C ± 3°C
ppm
PACKAGE DIMENSIONS (mm)
Pad Connections
1
2
3
4
In/Out
Gnd
In/Out
Gnd
Custom Options
PART NUMBERING GUIDE: Example ECS-240-8-37-TR
ECS - Frequency Abbreviation - Load - Package Type - Tolerance
-
Stability - Temp Range
-
Packaging
-37 =
ECX-1637
240 = 24.000 MHz
See P/N Guide for
Std Frequencies
8 = 8.0 pF
S = Series
A = ± 25 ppm
C = ± 10 ppm
L = -10 ~ +70°C
M = -20 ~ +70°C
N = -40 ~ +85°C
P = -40~+105°C
D = ±100 ppm
E = ± 50 ppm
G = ± 30 ppm
H = ± 25 ppm
K = ± 10 ppm
-TR =
Tape & Reel
1K/Reel
1105 South Ridgeview Road
z
Olathe, KS 66062
z
Phone: 913.782.7787
z
Fax: 913.782.6991
z
www.ecsxtal.com
ECX-1637
SMD CRYSTAL
Frequency Abbreviations
FREQUENCY
CODE
MHz
24.000
24.576
26.000
27.000
27.120
28.63636
32.000
36.000
38.400
40.000
240
245.76
260
270
271.2
286.36
320
360
384
400
POCKET TAPE DIMENSIONS (mm)
Package Data
Item
Description
Lid
Base
Metal
Ceramic
Sealing
Terminal
Seam/EB
Tungsten (metalized)
Gold/Nickel
Surface/Under
Plating
RoHS
Compliant (Pb Free)
1105 South Ridgeview Road
z
Olathe, KS 66062
z
Phone: 913.782.7787
z
Fax: 913.782.6991
z
www.ecsxtal.com
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