AT-CUT CRYSTAL UNIT
(SMD ・ Metal-can Type)
HCM49
RoHS compliant
1,000pcs/reel
■ FEATURES
● Frequency range : 3.5 ~ 50.0MHz
● External dimensions (mm)
L : 11.4 x W : 4.7 x H : 4.3
● Applications
Consumer products
■ DIMENSION
■ SOLDER PAD LAYOUT
[mm]
[mm]
■ STANDARD SPECIFICATIONS
Model
HCM49
Conditions
Please contact us for
frequencies available
at 25˚C
TOPR
3.5MHz ~ 30.0MHz (Fundamental)
30.0MHz ~ 50.0MHz (3rd Overtone)
±30ppm
below 6.0MHz:±50ppm
above 6.0MHz:±30ppm
-40℃ ~ +85℃
Storage Temperature Range
TSTR
-55℃ ~ +125℃
Motional (series) resistance
R1
Load capacitance
CL
Shunt capacitance
C0
Refer to the following table
Fundamental:10.0pF ~ ∞
3rd Overtone:5.0pF ~ ∞
7.0pF Max.
Level of drive
DL
100μW
Insulation Resistance
IR
500MΩMin.
DC100V±15V
Δf/f0
±5ppm Max.
25℃±3℃
Item
Nominal Frequency
f0
Frequency Tolerance
Frequency Tolerance over
Operating Temperature Range
Operating Temperature Range
Aging (first year)
Δf/f0
Δf/f0
-10℃~+60℃
at 25˚C
Please specify your requirement
■ MOTIONAL (SERIES) RESISTANCE (R1)
Freq. Range (MHz)
3.5≦f0<4.0
4.0≦f0<6.0
6.0≦f0<10.0
10.0≦f0<14.0
14.0≦f0<30.0
30.0≦f0<36.0
36.0≦f0≦50.0
Mode
Fundamental
Fundamental
Fundamental
Fundamental
Fundamental
3rd Overtone
3rd Overtone
R1
200ΩMax.
150ΩMax.
100ΩMax.
80ΩMax.
50ΩMax.
140ΩMax.
100ΩMax.
http://cfd.citizen.co.jp/english/prod-tech/product/cvo_top.html
■ PART NUMBERING SYSTEM
HCM49
20000000
Frequency Tolerance
(at 25℃)
Frequency
Please specify
the frequency
in Hz.
A
B
±30ppm
±50ppm
A B J T - □□□
Frequency Tolerance over
Operating Temp. Range
±30ppm
(STD)
A
Range -10℃ ~ +60℃
(STD)
±50ppm
CITIZEN
management code
Load capacitance (CL)
I
J
K
16.0pF
18.0pF
20.0pF
Ref. Code for
internal use.
B
Range -10℃ ~ +60℃
±50ppm
G
Range -40℃ ~ +85℃
Package specification
±100ppm
H
Range -40℃ ~ +85℃
T
Only Tape & Reel
*Please contact us for specifications available.
■ Part Marking
■ Reflow profile
[standard]
ffffCym
f : The first 4 digits of Frequency
including the decimal point
C : Manufacture's ID Code
y : The last digit of production year
m : Production month (See Table.1)
Table.1
Month
Code
Jan Feb
1
2
…
…
Sep Oct Nov Dec
9
X
Y
Z
■ Packing
Conforming to JIS C 0806 TB1208NEIAJ and RC-1009B TE1208N
Q'ty/reel
1,000
a
24.0
b
11.5
c
12.0
d (φ)
2.0
e
14.1
Product specifications are subject to change without notice.
http://cfd.citizen.co.jp/english/prod-tech/product/cvo_top.html
Conforming to JIS C 0806 R12R and EIAJ RC-1009B R15
f
0.4
g
4.2
h
5°
j
6.5
k
5°
l
25.5
m (φ) n (φ)
330
80
Rev.2
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