AT-CUT CRYSTAL UNIT
(SMD • Metal-can Type)
RoHS compliant
HCM49
■
FEATURES
1000pcs/reel
7Surface
mount type of metal-can HC-49/U-S.
High performance with the resistance weld sealing.
7Suitable
for various applications such as
communication devices, AV devices and measuring
instruments.
Life-size
■
DIMENSION [mm]
10.5 Max.
12.4±0.4
11.4±0.2
＋
0.1
−
0.2
■
SOLDER PAD LAYOUT [mm]
3.81 Max.
0.8
（4.32）
Internal connection
（0.64）
4.3 Max.
3.6 Max.
1.5
＋
0.15
−
0.05
5.5
3
5.5
4.7±0.2
■
STANDARD SPECIFICATIONS
Item
Nominal Frequency
Frequency Tolerance
Frequency Tolerance
over Operating
Temperature Range
Operating Temperature Range
Storage Temperature Range
Motional (series) resistance
Load capacitance
Shunt capacitance
Level of drive
Insulation Resistance
Aging (first year)
Model
HCM49
3.5MHz∼30.0MHz Fundamental）
（
30.0MHz∼50.0MHz 3rd Overtone）
（
±30ppm
below 6.0MHz:±50ppm
above 6.0MHz:±30ppm
−
40℃∼
＋
85℃
−
55℃∼
＋
125℃
Conditions
Need to contact us for
the available frequency
f
0
△
f/f
0
△
f/f
0
at 25˚C
−
10℃∼
＋
60℃
T
OPR
T
STR
R
1
C
L
C
0
D
L
I
R
△
f/f
0
Refer to the following table
Fundamental:10.0pF∼
∞
3rd Overtone:5.0pF∼
∞
7.0pF Max.
100μW
500MΩMin.
±5ppm Max.
at 25˚C
Need to specify your requirement
DC100V±15V
25℃±3℃
■
MOTIONAL (SERIES) RESISTANCE (R
1
)
Frequency Range
Mode
R
1
3.5MHz≦f
0
＜4.0MHz 4.0MHz≦f
0
＜6.0MHz 6.0MHz≦f
0
＜10MHz 10MHz≦f
0
＜14MHz
Fundamental
200ΩMax.
Fundamental
150ΩMax.
Fundamental
100ΩMax.
Fundamental
80ΩMax.
14MHz≦f
0
＜30MHz
Fundamental
50ΩMax.
30MHz≦f
0
＜36MHz
3rd Overtone
140ΩMax.
36MHz≦f
0
≦50MHz
3rd Overtone
100ΩMax.
http://cfm.citizen.co.jp/english/product/pr02.html
MHz CRYSTAL Part Numbering System
Example Part Number:
CM309S
Product Family
For example:
CSA310
CSA309
CMR309T
CMR310T
HC49US
HCM49
CM309S
CS20
CS10
CS325
CS325H
25.000M
Frequency
Numerical Value,
maximum characters as
follows:
XX.XXXXXX
followed by “M” for MHz
A B J -UT
Packaging method
-UT RoHS Compliant
Tape & Reel
-UB RoHS Compliant
Bulk
Load Capacitance
A
E
F
G
H
I
J
K
Series
L
12.0pF
M
12.5pF
N
13.0pF
O
15.0pF
P
16.0pF
Q
18.0pF (Std)
R
20.0pF
S
22.0pF
25.0pF
30.0pF
32.0pF
33.0pF
10.0pF
50.0pF
11.0pF
T
U
V
14.0pF
17.0pF
8.0pF
...others to be assigned
Frequency Stability [over Listed Temp.]
A
B
C
D
E
F
G
H
I
J
±30ppm
±50ppm
±100ppm
±20ppm
±10ppm
±30ppm
±50ppm
±100ppm
±20ppm
±10ppm
(-10 to +60ºC)
(-10 to +60ºC)
(-10 to +60ºC)
(-10 to +60ºC)
(-10 to +60ºC)
(-40 to +85ºC)
(-40 to +85ºC)
(-40 to +85ºC)
(-40 to +85ºC)
(-40 to +85ºC)
•
(Standard)
•
(CS325H)
•
•
•
•
•
•
K
L
M
N
O
P
Q
R
S
T
±150ppm
±200ppm
±60ppm
±80ppm
±30ppm
±40ppm
±50ppm
±60ppm
±70ppm
±80ppm
(-40 to +85ºC)
(-40 to +85ºC)
(-40 to +85ºC)
(-40 to +85ºC)
(-20 to +70ºC)
(-20 to +70ºC)
(-20 to +70ºC)
(-20 to +70ºC)
(-20 to +70ºC)
(-20 to +70ºC)
•
•
•
•
•
•
•
•
•
•
Frequency Tolerance [at 25C]
A
B
C
D
E
F
G
H
±30ppm
±50ppm
±100ppm
±20ppm
±10ppm
±15ppm
±25ppm
±5ppm
(Standard)
•
•
•
(CS325H)
•
•
•
•Consult Citizen
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