crystal units 1803c_nx2016sf_e nx2016sf for mobile communications crystal unit with built-in thermistor construction. minimize circuit design space by combining crystal unit into one component. (presently, crystal unit and temperature sensor is mounted in one board separately.) placing temperature sensor(thermistor) close to crystal blank in one airtight housing can detect more precise crystal blank temperature. improvement on frequency temperature compensation compared to present crystal unit. single cavity housing which is ideal to module applications. external confguration size is 2.0x1.6mm typ., h0.65 mm max. a surface-mount crystal oscillator. (refow soldering is possible.) lead-free. meets the requirements for re-fow profling using lead-free solder . features item model nx2016sf nominal frequency 19.2 to 52 mhz overtone order fundamental frequency tolerance (25 3c ) 10 10 ?6 frequency versus temperature characteristics (with reference to +32 c) 12 10 ?6 operating temperature range ?30 to +85 c storage temperature range ?40 to +85 c equivalent series resistance refer to *1 level of drive 10 w load capacitance 7 pf std-ctz-1 specifcations mm 1.60.1 #4 #3 #1 #2 #4 #3 #1 #2 2.00.1 0. 65 ma x. (0.30) (0 .6 3) (0 .6 3) (0.6) (0.6) (0.3) 0.75 2.2 0.46 0. 43 0. 75 1. 8 land pattern (typical) term inal land co nn ec tion s (t op vi ew ) terminal #1, #3 : x'tal #4 : thermistor #2 : thermistor &gnd #1 #2 #4 #3 dimensions ntc thermistor for temperature sensor resistance [r25] 100k 1 % b-constant [b25-50] 4250k 1 % *1 equivalent series resistance nominal frequency (mhz) equivalent series resistance max. [] 19.2 to 24 80 24 to 52 60 please specify the model name, frequency, and specifcation number when you order products. for further questions regarding specifcations, please feel free to contact us.
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