Citizen Crystals and Oscillators - CMR310T/309T Page 1 of 2 CMR310T/CMR309T (1,000pcs/reel) FEATURES: z z z The units are high-performance, miniature crystal units manufactured with Citizen's ultrahigh-precision processing technology. Ideal for low cost SMD applications. Provided in Tape and Reel. APPLICATIONS: z Can be used for a wide range of applications including use in AV equipment, OA equipment, communication equipment and measuring instruments. STANDARD SPECIFICATIONS Item Nominal frequency CMR310T f0 CMR309T 3.5MHz to 4.000MHz Conditions 4.001MHz to 32MHz (fund) Please contact us for changes 30MHz to 70MHz (3rd OT) in frequency. Frequency tolerance delta f/f0 ±30ppm or ±50ppm At 25°C Frequency vs.Temperature Characteristics delta f/f0 ±50ppm (±30ppm) -10°C to +60° C Operating temperature range Topr -40°C to + 85°C Storage temperature range Tstg -55°C to +125°C Equivalent series resistance R1 See drawing At 25°C Load capacitance 16.0pF TYP. Please specify Drive level CL C0 DL 50 µW to 100µW Insulation resistance IR 500M ohm MIN. DC100V ± 15V ± 5ppm MAX. 25°C ± 3°C Shunt capacitance Aging (First year) Sealing Shock resistance delta f/f0 5.0pF MAX. 1 x 10-2 µ Pa·m3 /s MAX. ±5ppm MAX. Drop test of 3 times on a hard board from 75cm height or shock test of 3000G x 0.3ms x 1/2sin wave x 3 directions Conditions will vary depending on the frequency. FREQUENCY vs TEMPERATURE CURVE http://www.citizencrystal.com/quartz/crystals/cmr310t309t_d.htm 4/2/2003 Citizen Crystals and Oscillators - CMR310T/309T Page 2 of 2 EQUIVALENTSERIES RESISTANCE (ESR, R1)(Ohm MAX.) Frequency Equivalent series resistance 3.5MHz <(=) f0 < 4MHz 200 4MHz <(=) f0 < 6MHz 150 6MHz <(=) f0 < 10MHz 100 10MHz <(=) f0 <(=) 32MHz 50 30MHz < f0 < 36MHz 100 36MHz <(=) f0 < 70MHz 80 Mode Fundamental 3rd OT DIMENSIONS: (UNIT=mm) RECOMENDED SOLDERING PATTERN: (UNIT=mm) http://www.citizencrystal.com/quartz/crystals/cmr310t309t_d.htm 4/2/2003