QTP732.76812B20R Qantek

QTP7 Series 1.4x6.9 Plastic SMD Tuning Fork Features Most appropriate for high-density circuit Suitable for small mobile telecommunication board by the small surface mount type devices Embeded with heat resistant cylinder type crystal bring highly stable characteristics General Specifications Mechanical Dimensions Nominal Frequency 32.768 kHz Frequency Tolerance at 25C 20ppm 0.55 1.400.10 Aging per Year 3ppm max. 6.70 Turnover Temperature 25C 5C 6.900.10 Temperature Coefficient -0.035 0.008ppm/D C 1.350.05 Temperature Range (Operating) -40 to +85C Storage Temperature -55 to +125C 0.300.10 Equivalent Series Resistance (ESR) 65K max. Load Capacitance C Standard 12.5pF L 0.400.10 Optional 7.0pF 4 3 Shunt Capacitance C 0.8pF typ. 0 1 2 Motional Capacitance C 3.0fF typ. 1 1.2 Drive Level 1W max. Insulation Resistance (M) 500 at 100Vdc 15Vdc 0.6 0.3 Quality Factor 70000 typ. Capacitance Ratio 450 typ. 5.1 Resistance to Shock 5ppm maximum offset from 75 cm drop test Pin Connection: 1 Crystal, 2 N/C, 3 N/C, 4 Crystal in all axes on to a hard surface. Part Numbering Guide Qantek Code Package Nominal Frequency (in kHz) Load Capacitance Operating Temperature Range Frequency Tolerance Packaging Q = Qantek TP7 = 1.4x6.9 Plastic 32.768 07 = 7pF B = -40 to +85C 20 = 20ppm R = 3000pcs Tape&Reel = SMD 12 = 12.5pF Example: QTP732.76812B20R bold letters = recommended standard specification Tape and Reel Dimensions QANTEK Technology Corporation Phone: +1 877-227-0440 (tollfree) www.qantek.com Fax: +1 877-227-0440 (tollfree) info qantek.com QTP7 Rev. 0.3QTP7 Series 1.4x6.9 Plastic SMD Tuning Fork Marking Code Guide Contains manufacturer code / lot code Solder Reflow Profile Frequency vs. Temperature Characteristics To calculate the frequency stability the parabolic curvature constant (K) is needed. For calculating the stability at 45C: 1- Change in temperature (D T) is (45-25) = +20C 2- Change in frequency is (-0.034 x (D C)) = (-0.034 x (20)) = -13.6ppm QANTEK Technology Corporation Phone: +1 877-227-0440 (tollfree) www.qantek.com Fax: +1 877-227-0440 (tollfree) info qantek.com QTP7 Rev. 0.3