CERAMIC SMD CRYSTAL Model: FX252B SERIES FEATURES OPTIONS • Ultra Low Profile • Fundamental • Tolerances to ± 10 PPM • Stabilities to ± 10 PPM • Temp Range to -40ºC ~ +85ºC • PART NUMBER Learn More - Internet Required Part Number 637-Frequency-xxxxx Model Number Frequency Range (MHz) FX252B 16.000 ~ 54.000 Learn more about: Part Marking Identification Tape and Reel Specification Internet required • STANDARD SPECIFICATIONS1 MAX (unless otherwise noted) 16.000 ~ 54.000 MHz ±50 PPM1 PARAMETERS Frequency Range Frequency Tolerance @ 25ºC Frequency Stability, ref @ 25ºC Over Operating Temp Range Temperature Range Operating (TOPR) Storage (TSTG) Shunt Capacitance (Co) Load Capacitance (CL) ±50 PPM1 Drive Level Aging per year Reflow Soldering Temperature Moisture Sensitivity Level (MSL) Termination Finish -10ºC ~ +60ºC1 -40ºC ~ +85ºC 5 pF 10 pF~Series (Customer Specified) 100 µW ±5 PPM 260ºC x 10 Seconds (2 Cycles) 1 Au 1 Tolerances and stabilities to ±10 PPM, operating temps to -40ºC ~ 85ºC available. All specifications subject to change without notice. Rev. 6/2/05 Bottom View Developed Frequencies 16.000 19.680 24.000 32.000 54.000 19.200 19.800 26.000 48.000 Frequency Range (MHz) 16.000 ~ 26.000 26.000+ ~ 35.000 35.000+ ~ 54.000 Operating Mode Max ESR Ω Fundamental Fundamental Fundamental 200 100 50 All dimensions are in millimeters. All dimensions are in millimeters. 14 FOXElectronics 5570 Enterprise Parkway Fort Myers, Florida 33905 USA +1(239) 693.0099 FAX +1 (239) 693.1554 http://www.foxonline.com EMEA Munich, Germany +49 0 89.90936870 FAX +49 0 89.90936776 | Asia Hong Kong +852.2854.4285 FAX +852.2854.4282 © 2005 FOX ELECTRONICS