Frequency Tolerance over
Frequency Tolerance over Frequency Tolerance over
Frequency Tolerance over
Operating Temperature Range
Operating Temperature Range Operating Temperature Range
Operating Temperature Range Δf/f
0
below 5.5MHz:±50ppm
above 5.5MHz:±30ppm
Frequency Tolerance
Frequency Tolerance Frequency Tolerance
Frequency Tolerance Δf/f
0
±30ppm at 25˚C
Storage Temperature Range
Storage Temperature Range Storage Temperature Range
Storage Temperature Range T
STR
-55℃ ～ +125℃
Motional (series) resistance
Motional (series) resistance Motional (series) resistance
Motional (series) resistance R
1
Refer to the following table at 25˚C
-10℃～+60℃
Operating Temperature Range
Operating Temperature Range Operating Temperature Range
Operating Temperature Range T
OPR
-40℃ ～ +85℃
Load capacitance
Load capacitance Load capacitance
Load capacitance
AT-CUT CRYSTAL UNIT
(SMD ・ Plastic Package)
CM309E
RoHS compliant 1,000pcs/reel
■ FEATURES
● Frequency range : 4.0 ～ 64.0MHｚ
● External dimensions (mm)
L : 11.7 x W : 4.8 x H : 3.7
● Applications
Consumer products
Nominal Frequency
Nominal Frequency Nominal Frequency
Nominal Frequency f
0
4.0MHz ～ 29.999MHz (Fundamental)
30.0MHz ～ 64.0MHz (3rd Overtone)
Please contact us for
frequencies available
■ DIMENSION
[mm]
■ SOLDER PAD LAYOUT
[mm]
■ STANDARD SPECIFICATIONS
Model
CM309E Conditions
Item
100ΩMax.
100ΩMax.100ΩMax.
100ΩMax.
16.0pF / 18.0pF / Series Please specify your requirement
Shunt capacitance
Shunt capacitance Shunt capacitance
Shunt capacitance C
0
5.0pF Max.
Level of drive
Level of drive Level of drive
Level of drive D
L
2mW Max.
C
L
10.0≦f
10.0≦f10.0≦f
10.0≦f
0
00
0
＜12.0
＜12.0＜12.0
＜12.0 12.0≦f
12.0≦f12.0≦f
12.0≦f
0
00
0
＜16.0
＜16.0＜16.0
＜16.0 16.0≦f
16.0≦f16.0≦f
16.0≦f
0
00
0
＜30.0
＜30.0＜30.0
＜30.0
Fundamental
FundamentalFundamental
Fundamental Fundamental
FundamentalFundamental
Fundamental Fundamental
FundamentalFundamental
Fundamental
60ΩMax.
60ΩMax.60ΩMax.
60ΩMax.
Insulation Resistance
Insulation Resistance Insulation Resistance
Insulation Resistance I
R
500MΩMin. DC100V±15V
30.0≦f
30.0≦f30.0≦f
30.0≦f
0
00
0
＜36.0
＜36.0＜36.0
＜36.0 36.0≦f
36.0≦f36.0≦f
36.0≦f
0
00
0
＜64.0
＜64.0＜64.0
＜64.05.5≦f
5.5≦f5.5≦f
5.5≦f
0
00
0
＜6.0
＜6.0＜6.0
＜6.0
Aging (first year)
Aging (first year) Aging (first year)
Aging (first year) Δf/f
0
±5ppm Max. 25℃±3℃
■ MOTIONAL (SERIES) RESISTANCE (R
1
)
Freq. Range
Freq. RangeFreq. Range
Freq. Range
(MHz)
(MHz) (MHz)
(MHz)
4.0≦f
4.0≦f4.0≦f
4.0≦f
0
00
0
＜5.5
＜5.5＜5.5
＜5.5 6.0≦f
6.0≦f6.0≦f
6.0≦f
0
00
0
＜10.0
＜10.0＜10.0
＜10.0
Fundamental
FundamentalFundamental
Fundamental
150ΩMax.
150ΩMax.150ΩMax.
150ΩMax. 40ΩMax.
40ΩMax.40ΩMax.
40ΩMax.
3rd Overtone
3rd Overtone3rd Overtone
3rd Overtone 3rd Overtone
3rd Overtone3rd Overtone
3rd Overtone
100ΩMax.
100ΩMax.100ΩMax.
100ΩMax. 80ΩMax.
80ΩMax.80ΩMax.
80ΩMax.R
RR
R
1
11
1
50ΩMax.
50ΩMax.50ΩMax.
50ΩMax.
Fundamental
FundamentalFundamental
Fundamental
80ΩMax.
80ΩMax.80ΩMax.
80ΩMax.
Mode
ModeMode
Mode Fundamental
FundamentalFundamental
Fundamental
Do not connect to external terminals with #2 and #3.
http://cfd.citizen.co.jp/english/prod-tech/product/cvo_top.html
Product specifications are subject to change without notice.
*Please contact us for specifications available.
Frequency
FrequencyFrequency
Frequency
A
AA
A Series
Only
Tape
&
Reel
A
AA
ARef. Code for
internal use.
B
BB
B
CM309E 20000000 A B J T - □□□
CM309E 20000000 A B J T - □□□CM309E 20000000 A B J T - □□□
CM309E 20000000 A B J T - □□□
Package specification
Package specificationPackage specification
Package specification
CITIZEN
CITIZENCITIZEN
CITIZEN
management code
management codemanagement code
management code
Please
specify
the frequency
in
Hz.
A
AA
A ±30ppm
(STD)
B
BB
B ±50ppm
(STD)
Frequency Tolerance over
Frequency Tolerance overFrequency Tolerance over
Frequency Tolerance over
Operating Temp. Range
Operating Temp. RangeOperating Temp. Range
Operating Temp. Range
±30ppm
Range -10℃ ～ +60℃
±50ppm
Range -10℃ ～ +60℃
±50ppm
Range -40℃ ～ +85℃
±100ppm
Range -40℃ ～ +85℃
■
PART NUMBERING SYSTEM
18.0pF
16.0pF
G
GG
G
4.0
gQ'ty/reel a b c d (φ) e
Frequency Tolerance
Frequency ToleranceFrequency Tolerance
Frequency Tolerance
（at 25℃)
（at 25℃)（at 25℃)
（at 25℃)
■ Reflow profile
Load capacitance (CL)
Load capacitance (CL)Load capacitance (CL)
Load capacitance (CL)
H
HH
H
J
JJ
J
I
II
I
T
TT
T
X Y
Conforming to JIS C 0806 TB1208NEIAJ and RC-1009B TE1208N Conforming to JIS C 0806 R12R and EIAJ RC-1009B R15
5° 4.9 5° 25.5 330 100
m (φ) n (φ)h j k l
1,000 24.0 11.5 12.0 1.5 11.9 0.4
f
Rev.2
Table.1
Month Jan Feb … Sep
■ Part Marking
[standard]
Z
■ Packing
ff.fff : Frequency
C AA : Manufacture's ID Code
y : The last digit of production year
m : Production month (See Table.1)
M : MHz
Oct Nov Dec
Code 1 2 … 9
C AAym
C AAymC AAym
C AAym
ff.fff M
ff.fff Mff.fff M
ff.fff M
http://cfd.citizen.co.jp/english/prod-tech/product/cvo_top.html
