VT Series
Quartz Crystal Units for Low Frequencies
VT-150-F/VT-200-F
FEATURES
• Compact tubular package.
• Photolithographic process.
• Excellent shock resistance and environmental char-
acteristics.
• RoHS directive compliant.
• Complete Pb-free.
APPLICATIONS
Real Time Clocks, Timers, Water/Electricity/Gas
Meter, Remote-Controllers, Portable Applications
STANDARD SPECIFICATIONS
Conditions without notice (Temperature: 25± 2°C, DL: 0.1µW)
Item
Nominal Frequency
Frequency Tolerance
Turnover Temperature
Parabolic Coefficient
Load Capacitance
Motional Resistance (ESR)
Absolute Maximum Drive Level
Level of Drive
Shunt Capacitance
Frequency Ageing
Operating Temperature
Storage Temperature
Symbol
f_nom
f_tol
Ti
B
C
L
R
1
DLmax
DL
C
0
f_age
T_use
T_stg
Specifications
32.768kHz
(±5 x 10
−6
),
±10
x 10
−6
,
±20
x 10
−6
+25±5°C
(−3.5±0.8) x 10
−
8
/°C
2
4.5 to 12.5pF
50kΩ max.
1µW
0.1µW
0.9pF typ.
±3
x 10
−6
−10°C
to +60°C
−30°C
to +70°C
Piece part basis
+25±3°C, First Year
Conditions / Notes
DIMENSIONS
VT-150-F
VT-200-FL / VT-200-F
6.0
+0.10
−0.15
5.0 max.
5.0 min.
(
φ
0.22)
5.0 min.
(
φ
0.26)
(0.65)
UNIT: mm
φ
2.0max.
φ
1.5max.
(0.45)
UNIT: mm
Quartz Crystal 2011
www.sii-crystal.com
7
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