TC-26

TUNING FORK QUARTZ CRYSTAL TC-26 & NC-38 Series The tuning fork type quartz crystal provides ultimate in size, performance, and economic trade-offs. So it is used as a clock source in communication equipment, measuring instrument, microprocessor and other time management application. Crystal Units FEATURES Miniature Package Low Cost KHz Frequency Tight Tolerance Electrical Specifications Parameter Frequency Range Frequency Tolerance Temperature Cofficient Operating Temperature Range Storage Temperature Range Shunt Capacitance Motional Capacitance Load Capacitance Insulation Resistance Drive Level Aging(First year) Equivalent Series Resistance(ESR) Symb FO F/ FO K TOPR TSTG CO C1 CL IR DL Fa RS Condition AT 25 REF TO 25 Min 30 10 -10 -20 1 6 500 -5.0 0.85 2 12.5 Typ 32.768 20 Max 100 100 -0.042 +60 +70 2 4 Series 1 +5.0 35 50 Units KHz ppm ppm/( ) 2 pF fF pF M mW ppm K K 100VDC AT 25 3 DT-38 DT-26 Mechanical Dimensions(mm) TC-26 6.3Max 2.1Max 4.0Min -10 -20 0.20 0.076( 2) 0.65 T( -20 Parabolic Temperature Curve -10 0 10 20 30 40 50 60 70 NC-38 8.28Max 3.1Max 9.0Min 0.30 0.076( 2) 0.80 -30 -40 -50 -60 F/f(ppm) To determine frequency stability , use parabolic curvature(k). For example: What is stability at 45 1).change in T( )=45-25=20 2).Change in frequency = -0.042ppm*( )2 = -0.042ppm*(20)2 = -16.8ppm(max) 4 ELECTRONIC COMPONENTS RSG ■ RSG Electronic Components GmbH Sprendlinger Landstr. 115 D-63069 Offenbach/Germany Tel. +49 69 984047-0 Fax +49 69 984047-77 info@rsg-electronic.de www.rsg-electronic.de ■ ■ ■ ■ ■ Änderungen vorbehalten / subject to change without notice