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| 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, fO Frequency Tolerance typ./max., f/fO Resonance resistance typ./max., Rr Static Capacitance typ., CO Capacitance ratio r, typ. Drive Level max., DL Insulation Resistance min. Frequency Vs. Temperature fT=fO +A1*(T-TO) +A2*(T-TO)2, DS26 (DT26). Diameter 2 mm / length 6 mm Electrical characteristics at 37 C UNITS mm kHz ppm k pF W M 32.000...36.000 150 75/95 1.3 0.2 900 3.0 500 Thermal characteristics where: fT - crystal frequency at temperature T (C), fO - crystal frequency at reference temperature TO (C), TO - reference value of temperature (C). For higher accuracy a third order polynomial is recommended as follow: fT=fO +A1*(T-TO)+A2*(T-TO)2+A3*(T-TO)3 Model 1st order temperature coefficient A1* 2nd order temperature coefficient A2* 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., 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, TOPR (typ./max) Storage temperature, TSTR Shock resistance, f/f0 Vibration resistance, f/f0 *A1, A2 and A3 coefficients can be changed on request. PACKAGE DIMENSIONS UNITS: millimeters 6.1 5...9 2dia 0,2dia 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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