CMD4A Model
Replacement for Plastic SMD Crystal
Frequency Range:
Calibration Tolerance:
Frequency Stability:
Temperature Range:
(Option)
(Option)
Storage:
Shunt Capacitance:
Drive Level:
ESR:
Packaging:
Aging:
3.5MHz to 32MHz (fund)
27MHz to 86MHz (3rd O/T)
±10ppm to ±100ppm
±10ppm to ±100ppm
0°C to 70°C
ree
-20°C to 70°C
dF S
a
Le oH ant
R pli
-40°C to 85°C
m
Co
-55°C to 120°C
7.0pF Max
100uW Typical
see table 1
1K Tape and Reel
<3ppm 1
st
/yr Max
**Not recommended for new
designs
0.400
(10.16)
#4
#3
Designed as a drop in
replacement for older style
plastic crystal packages.
Resistance at series resonance
Freq. (MHz)
3.5 - 4.0
4.1 - 4.9
5.0 - 5.9
6.0 - 11.9
12.0 - 14.9
15.0 - 30.0
30.1 - 86.0
Max ESR
150
120
100
90
70
50
100
Table 1
0.150
(3.81)
Terminals
#1 #4 Crystal
#2 #3 GND
0.516
(13.10)
0.008 ±0.004
(0.20 ±0.10)
#1
#2
0.086
(2.20)
0.063
(1.60)
0.142
(3.60)
0.094
(2.40)
0.094
(2.40)
0.374
(9.50)
0.063
(1.60)
0.039
(1.00)
0.197
(5.00)
0.370
(9.40)
See
Options
#4
#3
0.181
(4.60)
#2
Dimensions inches (mm) #1
All dimensions are Max unless otherwise specified.
0.118
(3.00)
CMD4X X X X X - Freq
Frequency Tolerance
at 25°C
1
2
3
4
5
6
7
±10 ppm
±15 ppm
±20 ppm
±25 ppm
±30 ppm
±50 ppm
±100 ppm
A
B
C
D
E
F
G
H
I
Frequency Stability
over Temp Range
±10 ppm
(0 to 70°C)
±15 ppm
(0 to 70°C)
±20 ppm
(0 to 70°C)
±25 ppm
(0 to 70°C)
±30 ppm
(0 to 70°C)
±50 ppm
(0 to 70°C)
±100 ppm (0 to 70°C)
±15 ppm
(-20 to 70°C)
±20 ppm
(-20 to 70°C)
J
K
L
M
N
O
P
Q
±30ppm
±50 ppm
±100 ppm
±20 ppm
±25 ppm
±30 ppm
±50 ppm
±100 ppm
(-20 to 70°C)
(-20 to 70°C)
(-20 to 70°C)
(-40 to 85°C)
(-40 to 85°C)
(-40 to 85°C)
(-40 to 85°C)
(-40 to 85°C)
Load
Capacitance
1
2
3
4
5
6
7
8
Series
14 pF
16 pF
18 pF
20 pF
22 pF
25 pF
32 pF
Options
Can Height
A 4.0mm
B 4.5mm
C 5.5mm
Example:
CMD44F51B-20.000 = ±25ppm at 25°C, ±50ppm 0 to 70°C, 20pF Load Cap, Fundamental, 4.5mm, 20.000MHz
Mode
1 Fundamental 3.5-32MHz
3 3rd Overtone 27-86MHz
Specifications subject to change without notice.
TD-02075 Rev.D
41
PCB设计
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