Oscilent Corporation | 279 Series Quartz Crystal 1 of 2 SMD Quartz Crystal Series Number Package Description Last Modified 279 4.0 x 2.5 Chip Type SMD Quartz Crystal Nov. 17, 2011 FEATURES -4.0x2.5mm Surface Mount Chip Type Quartz Crystal - Low profile (0.75mm) - Optimum for mobile phone and bluetooth applications - Excellent heat and shock resistance - RoHS / Lead Free compliant OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS PARAMETERS SYMBOL CONDITION MINIMUM TYPICAL MAXIMUM Frequency Range Fo - 12 - 32 MHz Frequency Tolerance F/Fo @ 25ºC ±10 ±15 ±30 ppm Temperature Stability Tc REFTO25ºC ±10 ±15 ±30 ppm( ºC) Operating Temperature TORP - -20 - +70 ºC Storage Temperature TSTG - -40 - +85 ºC Shunt Capacitance Co - - - 3 pF Load Capacitance CL - 8 - 12 Insulation Resistance IR - 500 - - Drive Level DL 100VDC 10 100 300 µW Aging Fa @25ºC per year -2.0 - +2.0 Ppm EQUIVALENT SERIES RESISTANCE (ESR) AND MODE OF VIBRATION (MODE) PARAMETERS MAX ESR (OHM) MODE 12.000MHZ ~ 19.999MHZ 80 Fundamental 20.000MHZ ~ 25.999MHZ 70 Fundamental 26.000MHZ ~ 32.000MHZ 50 Fundamental UNITS pF M Oscilent Corporation | 279 Series Quartz Crystal 2 of 2 PART NUMBER GUIDE Example: 279-25.0M-9-15-K-S-TR (All fields separated by a dash "-") Series Number Frequency 279 25.0M Enter desired Oscilent 4.0 x 2.5 SMD frequency. Load Capacitance Tolerance @ +25ºC 9 Enter desired capacitance here. Avail. = 12 ~ 32.0M Avail. = 8 ~ 12pF Frequency Stability Over Temp ( ºC ) 15 Blank * = 10 = 15 = 20 = 25 = 50 = Avail. = ±30 PPM ±10 PPM ±15 PPM ±20 PPM ±25 PPM ±50 PPM ±10 ~ ±30 Operating Temp ( ºC ) K Blank* = G= H= K= L= N= M= Avail. = ±50 PPM ±30 PPM ±20 PPM ±15 PPM ±10 PPM ±5 PPM ±100 PPM ±10 ~ ±30 S P= R= S= T= W= 0~+50 -10~+60 -20~+70 -30~+80 -40~+85 Packaging** TR Blank* = Bulk TR = Tape/Reel NOTE: Deviations on all parameters available. Please consult Oscilent for details. DEFINITIONS: Click on the characteristic names above for definitions of that particular characteristic. *STANDARDS: "Blank" part number selections indicate standard variables for that particular characteristic. **PACKAGING: Click on the packaging name above for tape/reel specifications Series No.: 279 Crystal Oscillators | Quartz Crystal | TCXO | VCXO | IF SAW Filter | RF SAW Filter | Ceramic Resonator Crystal Filter | Ceramic Filter | SAW Filter / SAW Devices | Site Map