CITIZEN CM519

TUNING FORK CRYSTAL UNIT (SMD • Ceramic Package)
CM519
RoHS compliant / Pb free
3000pcs/reel
■ FEATURES
7Tuning fork crystal with ceramic packaged type.
7Small & thin packaging and light weight.
7Most appropriate for portable devices and mobile
telecommunications devices.
Life-size
■ DIMENSION [mm]
■ SOLDER PAD LAYOUT [mm]
1.8±0.15
4.9±0.15
4-R0.15
2.9
1.3
2.2
1.0 Max.
1.3
0.1
3.2
Internal connection
1.6
0.53
(3.95)
0.75
0.1
Do not design any patterns on shaded area.
■ STANDARD SPECIFICATIONS
Item
Model
CM519
Conditions
f0
32.768kHz
△ f/f0
±20ppm
at 25˚C
CL
9.0pF, 12.5pF
Need to specify your requirement
Operating Temperature Range
TOPR
−40℃∼+85℃
Storage Temperature Range
TSTR
−55℃∼+125℃
Turnover Temperature
TM
25℃±5℃
Temperature Coefficient
β
−0.034±0.006ppm/℃2
Motional (series) resistance
R1
70KΩMax.
Level of drive
DL
1μW Max.
△ f/f0
±3ppm Max.
C0
1.35pF Typ.
Nominal Frequency
Frequency Tolerance
Load capacitance
Aging (first year)
Shunt capacitance
http://cfm.citizen.co.jp/english/product/pr02.html
at 25˚C
25℃±3℃