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
Frequency Tolerance
Frequency Stability (ref @ 25°C)
Shunt Capacitance
Load Capacitance
Equivalent Series Resistance
Drive Level
Operating Temperature
Storage Temperature
Aging Characteristics (Per Year)
T
opr
T
stg
@ +25°C ± 3°C
-20
-40
Fundamental Mode
8
+25
100
100
+70
+85
±5
CONDITIONS
F
O
@ +25°C
-20 ~ +70°C
ECX-1637
MIN
24.000
TYP
MAX
80.000
± 50 *
± 50 *
5.0
UNITS
MHz
ppm
ppm
pF
pF
Ω
µW
°C
°C
ppm
PACKAGE DIMENSIONS (mm)
Pad Connections
1
2
3
4
In/Out
Gnd
In/Out
Gnd
PART NUMBERING GUIDE: Example ECS-240-8-37-TR
ECS - Frequency Abbreviation - Load -
240 = 24.000 MHz
See P/N Guide for
Std Frequencies
8 = 8.0 pF
S = Series
Custom Options
- Tolerance
A = ± 25 ppm
C = ± 10 ppm
Package Type
-37 =
ECX-1637
-
Stability - Temp Range
D = ±100 ppm
E = ± 50 ppm
G = ± 30 ppm
H = ± 25 ppm
K = ± 10 ppm
L = -10 ~ +70°C
M = -20 ~ +70°C
N = -40 ~ +85°C
P = -40~+105°C
-
Packaging
-TR =
Tape & Reel
1K/Reel
1105 South Ridgeview Road
Olathe, KS 66062
Phone: 913.782.7787
Fax: 913.782.6991
www.ecsxtal.com
ECX-1637
SMD CRYSTAL
Frequency Abbreviations
FREQUENCY
MHz
24.000
24.576
25.000
26.000
27.000
27.120
29.491
30.000
32.000
34.400
36.000
38.400
40.000
44.000
44.545
48.000
54.000
CODE
240
245.76
250
260
270
271.2
294.91
300
320
344
360
384
400
440
445.45
480
540
POCKET TAPE DIMENSIONS (mm)
Package Data
Item
Lid
Base
Sealing
Terminal
Plating
RoHS
Description
Metal
Ceramic
Seam/EB
Tungsten (metalized)
Gold/Nickel
Surface/Under
Compliant (Pb Free)
1105 South Ridgeview Road
Olathe, KS 66062
Phone: 913.782.7787
Fax: 913.782.6991
www.ecsxtal.com
