Part Number SF280M SF281M SF284M Nominal Center Frequency (fo) (MHz) 280.0 281.0 284.0 Insertion Loss (dB)i.fo-100MHz to fo –37.5MHzii. fo ±5MHziii.fo+37.5MHz to fo +100MHz 48min4.5max40min 48min4.5max40min 48min4.5max40min Ripple( within fo ±5MHz)dB 2.0max 2.0max 2.0max Input /Output Impedance (Nominal) 230Ω//-0.2pF 230Ω//-0.2pF 230Ω//-0.2pF
PARAMETERS T-310 T-309 Mode of Vibration AT CUT or BT CUT Frequency Range 3.5~6MHz 6.01~70MHz Frequency Tolerance at 25℃ ±30ppm or ±50ppm Frequency VS Temperature ±30ppm or ±50ppm Operation Temperature Range -10℃~+60℃ Storage Temperature Range -40℃~+85℃ Aging(at 25℃) ±5ppm max. Shunt Capacitance 7.0 pF max. Drive Level 0.3 mW max Load Capacitance Customer Assign Insulation Resistance 500MΩmin Shock Resistance Drops onto a hard wood board from the height of 75cm
Parameter Specification Frequency Range 3.579545MHz to 60.000MHz Frequency Tolerance at 25℃ ±50 ppm max. Operating Temperature Range 0 to 70℃ Std., Frequency Stability Over Temp. -40℃~+85℃ Operation Mode 1.8MHz to 27.000MHz(Fundamental) 24.01MHz to 60.0000MHz(3rd overtone) Equivalent Series Resistance (ESR) See the table Shunt Capacitance(Co) 7.0 pF max. Load Capacitance(CL) 20 pF std. Drive Level 1mW max.100μW Correlation Aging @25℃ per year ±3 ppm max. Insulation Resistance 500 MΩmin.at100Vdc±15V