TUNING FORK CRYSTAL UNIT
RoHS compliant / Pb free
(SMD
・
Ceramic Package)
CM519
■
FEATURES
● Frequency range : 32.768kHz
● External dimensions (mm)
L : 5.05 x W : 1.95 x H : 1.0
● Applications
Consumer products
3,000pcs/reel
■
DIMENSION
[mm]
■
SOLDER PAD LAYOUT
[mm]
Do not design any patterns under CM519.
■
STANDARD SPECIFICATIONS
Item
Model
CM519
32.768kHz
±10ppm / ±20ppm
6.0pF / 7.0pF / 9.0pF / 12.5pF
-40℃ ½ +85℃
-55℃ ½ +125℃
25℃±5℃
-0.034±0.006ppm/℃
2
70KΩ Max.
1μW Max.
±3ppm Max.
1.35pF Typ.
Conditions
Nominal Frequency
Frequency Tolerance
Load capacitance
Operating Temperature Range
Storage Temperature Range
Turnover Temperature
Temperature Coefficient
Motional (series) resistance
Level of drive
Aging (first year)
Shunt capacitance
f
0
Δf/f
0
C
L
T
OPR
T
STR
T
M
β
R
1
D
L
Δf/f
0
C
0
at 25℃
Please specify your requirement
at 25℃
25℃±3℃
http://cfd.citizen.co.jp/english/prod-tech/product/cvo_top.html
■
PART NUMBERING SYSTEM
CM519
32768
D Z F T - □□□
Frequency
Frequency Tolerance
（at 25℃)
Frequency Tolerance over
Operating Temp. Range
Package specification
CITIZEN
management code
T
Please specify
the frequency
in Hz.
D
E
±20ppm
(STD)
±10ppm
Z
Standard Spec.
Only Tape & Reel
Ref. Code for
internal use.
Load capacitance (CL)
B
C
F
Y
6.0pF
9.0pF
(STD)
12.5pF
(STD)
7.0pF
*Please contact us for specifications available.
■
Part Marking
[standard]
■
Reflow profile
Cym###
C : Manufacture's ID Code
y : The last digit of production year
m : Production month (See Table.1)
# : Production Lot No.
Table.1
Month
Code
Jan Feb
1
2
…
…
Sep Oct Nov Dec
X
Y
Z
9
■
Packing
Conforming to JIS C 0806 TB1208NEIAJ and RC-1009B TE1208N
Conforming to JIS C 0806 R12R and EIAJ RC-1009B R15
Q'ty/reel
3,000
a
12.0
b
5.5
c
4.0
d (φ)
1.0
e
5.3
f
0.3
g
1.1
h
5°
j
2.1
k
5°
l
13.0
m (φ) n (φ)
180
60
Rev.1
http://cfd.citizen.co.jp/english/prod-tech/product/cvo_top.html
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