APPLICATIONS
RKTV206 used to sense temperature changes. It is designed for applications in
precision electronic thermometers and temperature controllers for the conversion of
temperature to frequency. RKOV206 is a temperature-stable reference quartz crystal
resonator.
FEATURES
-
High shock and vibration characteristics
-
Miniature size
-
Wide temperature range (-50…+180…+ 370 °C)
-
Suitable for DTCXO and precision temperature equipment
HIGH-TEMPERATURE SENSING QUARTZ CRYSTAL RESONATORS
RKTV206
and
RKOV206
ELECTRICAL CHARACTERISTICS (at 37 °C) / OPERATING CONDITIONS
PARAMETERS
SPECIFICATIONS AND REMARKS
Package Size
Frequency Range, f
O
Frequency Tolerance typ./max.,
∆f/f
O
Resonance resistance typ./max., R
r
Static Capacitance typ., C
O
Capacitance ratio r, typ.
Drive Level max., D
L
Insulation Resistance min.
Frequency Vs. Temperature f
T
=f
O
+A
1
*(T-T
O
) +A
2
*(T-T
O
)
2
,
DS26 (DT26). Diameter 2 mm / length 6 mm
Electrical characteristics at 37 °C
UNITS
mm
kHz
ppm
kΩ
pF
µW
MΩ
32.000…36.000
±
150
75/95
1.3
±
0.2
900
3.0
500
Thermal characteristics
where: f
T
– crystal frequency at temperature T (°C),
f
O
–
crystal frequency at reference temperature T
O
(°C),
T
O
– reference value of temperature (°C).
For higher accuracy a third order polynomial is recommended as follow:
f
T
=f
O
+A
1
*(T-T
O
)+A
2
*(T-T
O
)
2
+A
3
*(T-T
O
)
3
Model
1st order temperature coefficient A
1
*
2nd order temperature coefficient A
2
*
Reference temperature
RKTV206A
-1.76
±
0.1
RKTV206B
-1.76
±
0.1
0
RKTV206C
-1.76
±
0.1
RKOV206(A…C)
-
25
±
5
K
-1
K
-2
°C
-0,00310
±
0,0001 -0,00310
±
0,0001 -0,00310
±
0,0001
-0,00120
±
0,0001
For high-temperature sensing, the crystal RKTV206(A…C) is used in combination with the temperature-stable reference crystal
resonator RKOV206(A…C). The frequency difference between both is used as temperature signal.
Aging first year/10 years max.
Response time in liquid, typ.,
τ
Operation conditions
±
5 /
±
10
5
-50…+180 /
-269…+200
-50…+270 /
-50…+370 / -50…+180…370 / -
-269…+300
-269…+400
269…+200…+400
-55…+85
Drop test 3 times on hard wooden board. height 100cm
5000g. 0.2 ms / ±7 ppm max.
10g / 50-2000 Hz, 8 hours / ±7 ppm max.
ppm
sec
°C
°C
ppm
ppm
Operating temperature, T
OPR
(typ./max)
Storage temperature, T
STR
Shock resistance,
∆f/f
0
Vibration resistance,
∆f/f
0
*A
1
, A
2
and A
3
coefficients can be changed on request.
PACKAGE DIMENSIONS
UNITS: millimeters
6.1
5...9
2
dia
0,2
dia
GmbH & Co. KG
Wasemweg 5
D-74821 Mosbach
Germany
page
1(1)
www.AXTAL.com
fon: +49 (6261) 939834
fax: +49 (6261) 939836
E-mail: info@axtal.com
0,7...0,8
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