crystal units - 9 - NX2520SG for automotive 1604b_NX2520SG_e crystal unit with built-in thermistor construction for automotive. 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. it is ideal for applications such as vehicle communication equipment and car navigation systems. meets the requirements for re-fow profling using lead-free solder . conforms to aec-q200. *1 equivalent series resistance nominal frequency (mhz) equivalent series resistance max. [] 16 to 19.2 120 19.2 to 20 80 20 to 40 50 40 to 80 40 features item model NX2520SG nominal frequency 16 to 80 mhz overtone order fundamental frequency tolerance (25c ) 10 10 ?6 frequency versus temperature characteristics (with reference to +25 c) *1 25 10 ?6 operating temperature range ?40 to +105 c storage temperature range ?40 to +105 c equivalent series resistance refer to *2 level of drive 10 w (max. 100 w) load capacitance 7 pf *1: in the case of 19.2m is with reference to +30c. specifcations mm 2.0.0.1 0.900.10 (0.8) (0.65) c0.3 c0.3 #3 #4 #1 #2 #3 #4 #1 #2 2.50.1 (0.65) (0.8) 1.7 1.3 1.2 1.0 land pattern (typical) terminal land connections (top view) #3 #4 #1 #2 terminal #1, #3 : x tal #4 : thermistor #2 : thermistor & gnd dimensions ntc thermistor for temperature sensor resistance [r25] 100k 1 % b-constant [b25-50] 4250k 1 % if you require this product, please contact ndk sales.
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