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.
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