VT Series(VT-150-F/VT-200-F)
FEATURES
Quartz Crystal Units for Watches
• Compact tubular package.
• Photolithographic process.
• Excellent shock resistance and environmental charac-
teristics.
• RoHS compliant (complete Pb-free).
APPLICATIONS
• Real Time Clocks, Timers, Pagers, Cameras, Remote-
Controllers, Portable Applications
STANDARD SPECIFICATIONS
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
typ./max.
DLmax
DL
C
0
f_age
T_use
T_stg
Conditions without notice (Temperature: +25± 2°C, DL: 0.1µW)
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 to12.5pF
30kΩ / 50kΩ
1µW
0.1µW
0.9pF typ.
±5
x 10
-6
-10°C to +60°C
-30°C to +70°C
Store a pcs. part
+25±3°C, First Year
Conditions / Notes
DIMENSIONS
VT-150-F
5.0 max.
5.0 min.
VT-200-F
6.0
+0.10
-0.15
5.0 min.
(
φ
0.26)
φ
1.5max.
(0.45)
(
φ
0.22)
φ
2.0max.
UNIT: mm
UNIT: mm
(0.65)
11
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