CRYSTALS TUNING FORK DXT26/38 Popular watch crystal 32.768KHz 2x6mm and 3x8mm sizes Frequency tolerance ±20ppm Available from stock Frequency Range (Fo) Frequency Tolerance at 25°C Temperature Stability (Ref to 25°C) Operating Temperature Range (TOPR) Storage Temperature Range (TSTG) Shunt Capacitance (Co) Load Capacitance (CL) Motional Capacitance (C1) Insulation Resistance Drive Level Ageing (at 25°C) Equivalent Series DXT38 Series Resistance (ESR) DXT26 Series 32.768kHz ±20ppm -0.042ppm/(∆°C)2Max. parabolic Turn Over Temperature at 25°C ±5°C -10°C to 60°C -20°C to 70°C 0.85pF (typ), 2pF Max 12.5pF (typ) 2.0pF typical 500 Megaohms Minimum at 100Vdc 1µWatts Max +3ppm/year Max. KΩ Max KΩ Max OUTLINE DRAWING 8.9 Max 1.1 8 Min ø0.3 ø0.2 0.7 4 Min ø3.0 6.3 Max ø2.0 SECTION 2 SPECIFICATION DXT38 DXT26 Dimensions in mm ORDERING INFORMATION DXT 26 32.768 Series Package 26 38 Frequency KHz 116 Fax: 01371 875075 www.dubilier.co.uk Tel: 01371 875758