CRYSTALS LOW PROFILE CRYSTAL HOLDER & SMT DXT494/49SM Useful replacement for DXT49 Where board space is paramount Standard frequencies readily available Resistance welded can Surface mount version DXT49SM also available SECTION 2 SPECIFICATION 3.200MHZ to 66.000MHZ ±50ppm (typ) ±50ppm ±50ppm (typ) ±100ppm 0°C to 70°C (AT) 0°C to 70°C (BT) -40°C to 85°C 7pF Max 10 to 32 pF or Series Resonant 500 Megaohms Minimum at 100Vdc 1mWatts Max ±5ppm/year Max 3.200MHz to 4.499MHz 150 Fundamental/AT 4.500MHz to 5.999MHz 120 Fundamental/AT 6.000MHz to 6.999MHz 100 Fundamental/AT 7.000MHz to 7.999MHz 90 Fundamental/AT 8.000MHz to 8.999MHz 80 Fundamental/AT 9.000MHz to 9.999MHz 60 Fundamental/AT 10.000MHz to 12.999MHz 50 Fundamental/AT 13.000MHz to 30.000MHz 40 Fundamental/AT 11.05 30.000MHz to 66.000MHz 80 3rd Overtone 27.000MHz to 40.000MHz 40 Fundamental/BT ø0.45 Dimensions in mm DXT494 10.000 A 20 Series DXT494 DXT49SM Frequency (MHz) Mode of Operation Load Capacitance or Series Resistance A-AT Cut Fund B-BT Cut Fund T-3rd Overtone DXT49SM DXT494 5.0 Max 0.7 3.5 Max 3.8 Max 13.2 1.0+/-0.1 12.3+/-0.6 11.4+/-0.6 4.88 DXT494 DXT49SM XX XX XX Options Frequency Temperature Tolerance Stability ppm ppm TR = Taped and reeled Blank = Loose 119 Fax: 01371 875075 12.3+/11.4+/- 4.88 ø0.45 ORDERING INFORMATION 1.0+/-0.1 Mode 3.5 Max Max ESR (Ω) 4.65 Frequency Range 11.05 13.2 MODE OF OPERATION (MODE) 4.65 OUTLINE DRAWING EQUIVALENT SERIES RESISTANCE (ESR) 4.5+/-0.2 Frequency Range (Fo) Frequency Tolerance at 25°C +3°C Temperature Stability (Ref to 25°C) Operating Temperature Range (TOPR) Storage Temperature Range (TSTG) Shunt Capacitance (Co) Load Capacitance (CL) Insulation Resistance Drive Level Ageing (at 25°Cº) www.dubilier.co.uk Tel: 01371 875758