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| TEMPERATURE SENSING QUARTZ CRYSTAL RESONATOR RKT206 APPLICATIONS RKT206 is a quartz crystal resonator used to sense temperature changes. The crystal is designed for precision electronic thermometers and temperature controllers for conversion of temperature to frequency. FEATURES High shock and vibration characteristics Miniature size Wide temperature range (-50...+100 C) Low power consumption Suitable for DTCXO and temperature test equipment ELECTRICAL CHARACTERISTICS (at temperature 37 C) / OPERATING CONDITIONS - PARAMETERS Package size Frequency range, fO Frequency Tolerance typ./max., f/fO Resonance resistance typ./max., Rr Static Capacitance typ., CO Capacitance ratio r Drive level max., DL Insulation resistance min. SPECIFICATIONS AND REMARKS DS26 (DT26). Diameter 2 mm / length 6 mm UNITS mm kHz ppm k pF W M Electrical characteristics at temperature 37 C 32.000...36.000 150 75/95 1.3 0.2 870 1.0 500 Motional characteristics Frequency vs. Temperature fT=fO +A1*(T-TO) +A2*(T-TO)2, There: fT - crystal frequency at temperature T (C), fO - crystal frequency at reference temperature T0 (C), TO - reference temperature (C). For higher accuracy fT can be represented by a third order polynomial as follow: fT=fO +A1*(T-TO)+A2*(T-TO)2+A3*(T-TO)3 1st order temperature coefficient A1* 2nd order temperature coefficient A2* 3rd order temperature coefficient A3* Aging first year/10 years max. Thermal time constant in liquid Operation conditions -1.811 0.06 -0.0028 0.0001 7.6 * 10 5 -6 K-1 K-2 K-3 ppm sec 5 / 10 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. -50...+100 / -269...+125 -55...+85 Drop test 3 times on hard wooden board, height 100cm 5000g., 0.2 ms / 5 ppm max. 10g / 10-2000 Hz, 8 hours / 5 PPM max. C C ppm ppm UNITS: millimeters PACKAGE DIMENSIONS 6.1 5...9 2dia 0,2dia GmbH & Co. KG Wasemweg 5 D-74821 Mosbach Germany 0,7...0,8 www.AXTAL.com fon: +49 (6261) 939834 fax: +49 (6261) 939836 E-mail: info@axtal.com page 1(1) |
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