HIGH-TEMPERATURE SENSING QUARTZ CRYSTAL RESONATORS RKTV206 and RKOV206 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 ELECTRICAL CHARACTERISTICS (at 37 °C) / OPERATING CONDITIONS PARAMETERS SPECIFICATIONS AND REMARKS Package Size DS26 (DT26). Diameter 2 mm / length 6 mm UNITS mm Electrical characteristics at 37 °C Frequency Range, fO 32.000…36.000 kHz ± 150 ppm 75/95 kΩ 1.3 ± 0.2 pF Frequency Tolerance typ./max., ∆f/fO Resonance resistance typ./max., Rr Static Capacitance typ., CO Capacitance ratio r, typ. 900 Drive Level max., DL 3.0 µW Insulation Resistance min. 500 MΩ Thermal characteristics Frequency Vs. Temperature fT=fO +A1*(T-TO) +A2*(T-TO)2, 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* RKTV206A RKTV206B RKTV206C RKOV206(A…C) -1.76 ± 0.1 -1.76 ± 0.1 -1.76 ± 0.1 - -0,00310 ± 0,0001 -0,00310 ± 0,0001 -0,00310 ± 0,0001 -0,00120 ± 0,0001 Reference temperature 0 25 ± 5 K-1 K-2 °C 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. ± 5 / ± 10 ppm 5 sec Response time in liquid, typ., τ Operation conditions -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. Operating temperature, TOPR (typ./max) Storage temperature, TSTR Shock resistance, ∆f/f0 Vibration resistance, ∆f/f0 10g / 50-2000 Hz, 8 hours / ±7 ppm max. *A1, A2 and A3 coefficients can be changed on request. PACKAGE DIMENSIONS UNITS: millimeters 5...9 GmbH & Co. KG Wasemweg 5 D-74821 Mosbach Germany page 1(1) 0,7...0,8 0,2dia 2dia 6.1 www.AXTAL.com fon: +49 (6261) 939834 fax: +49 (6261) 939836 E-mail: [email protected] °C °C ppm ppm