Typical applications: motherboard of computer, consumer electronics, CD-ROM VTR, data communication, automotive electronics, modem, TV game Features: low profile, bulk, offer fitted insulator, large range of choice of frequency, resistance weld Crystal holder prefix: 49US-SMD: 4.0mm holder hight, 49USS-SMD: 3.0mm holder heihgt Frequency range: Fundamental mode 3.2 to 30MHz 3rd overtone mode 27 to 70 MHZ Crystal cut: at - cut or 3rd at - cut Load capacity series or 8 to 50 PF Calibration tolerance (at 25C): +/-10ppm to +/-50ppm Frequency Stability: +/-10ppm to +/-50ppm Operating temperature range: 0℃~50℃ , -10℃~60℃,-20℃~70℃,-30℃~80℃-40℃~85℃ Shunt Capacitance (Co): 7 pF maximum Equivalent series resistance (ESR) Aging (per year at +25℃ ): +/-3 ppm Drive Level: 0,0.5,0.1,0.2,0.5,1.0mW (to be specified by customer) Insulation resistance: >500M ? min/DC100V