ECX-205X/206X
SMD TUNING FORK CRYSTAL
Housing for the ECX-205X/206X crystal
is made from the same thermoplastic
that is industry standard for integrated
circuits. This ruggedized molded
package is excellent for SMD applications.
FEATURES
• Low profile
• Long term stability
• Industry standard footprint
• Tape and Reel (2,000 pcs)
• PbFree/RoHS Compliant
Discontinued
PART NUMBERING GUIDE
“EXAMPLE”
MANUFACTURER
ECS
ECS
–
–
FREQUENCY
.327
.327
–
–
LOAD CAPACITANCE
12.5
12.5
–
–
PACKAGE TYPE*
11X
6X
* Package Type examples (11X= ECX-205X, 6X= ECX-206X)
OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS
PARAMETERS
NOMINAL FREQUENCY
LOAD CAPACITANCE
DRIVE LEVEL
CALIBRATION TOLERANCE
EQUIVALENT SERIES RESISTANCE
TEMPERATURE COEFFICIENT
OPERATING TEMPERATURE RANGE
MAX. OPERATING TEMPERATURE RANGE
Q FACTOR
TURNOVER TEMPERATURE
STORAGE TEMPERATURE RANGE
INSULATION RESISTANCE
SHUNT CAPACITANCE
MOTIONAL CAPACITANCE
AGING (FIRST YEAR)
Fo
C
L
D
L
@ +25˚C
R
1
T
OPR
Q
T
O
T
STG
IR
C
o
C
1
Δf/fo
ECX-205X/206X
32.768
12.5 Standard (6.0 Optional)
1.0 max.
±20
50 max.
-0.040 PPM/˚C
2
max.
-10 ~ +60
-40 ~ +85
50,000 min.
+25 ± 5
-55 ~ +125
500M
Ω
min./ DC 100V
2.0 typical
0.003 pF typical
±3 PPM max. @ +25˚C
UNITS
KHz
pF
µW
PPM
KΩ
PPM/(ΔC˚)
˚C
°C
°C
°C
MΩ
pF
pF
PPM
PACKAGE DIMENSIONS (mm)
10.41
2.29
RECOMMENDED OSCILLATION
CIRCUIT
Rf
PARABOLIC TEMPERATURE CURVE
T (˚C)
-20 -10
0
10
20 30 40 50
-10
60
70
0.2 Min.
2.54
3.4
0.51
4.2
Rd
-20
-30
-40
-50
C
1
C
2
Figure 1) ECX-205X/206X - Side and End views
-60
0.8
1.5
f/f (PPM)
2.7
5.0
2.7
Figure 2) ECX-205X/206X Land Pattern- Top view
ELECTRICAL CHARACTERISTICS
IC: TC 4069P
Rf: 10MΩ
Rd: 330KΩ (As required)
C
1
= 22pF, C
2
= 22pF
V
DD
= 3.0V
#4
#1
#3
#2
To determine frequency stability, use parabolic
curvature. For example: What is the stability at 45˚C?
1) Change in T (˚C)
2) Change in frequency
= 45 -25 = 20˚C
= -0.04 PPM x
Δ
T)
2
= -0.04 PPM x (20)
2
= -16.0 PPM
#4
#1
#3
#2
1.5
Figure 3) ECX-205X Pin Connection - Top view
Figure 4) ECX-206X Pin Connection - Top view
In this circuit, low drive level with a maximum
of 1µW is recommended. If excessive drive is
applied, irregular oscillation or quartz element
fractures may occur.
ECS, INC. INTERNATIONAL
1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX 913-782-6991 • WWW.ECSXTAL.COM
SMD CRYSTALS
11
SMD CRYSTALS
stm32/stm8
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