43 crystal units surface mount type crystal units / nx7551sa (cp21b) 3rd overtone this is small surface mount type crystal unit. features 8 compact and thin (7.5 5.1 1.2 mm). 8 excellent shock resistance and environmental characteristics. 8 this is high-frequency crystal unit. 8 they have a wide range of applications covering mobile stations and other communi- cations equipment. 8 taping package is for customer automatic loading operation. 8 it is applicable to ir reflow. 5.1 0.2 7.5 0.2 1.2 +0.1 ?.2 2.5 0.1 1.0 0.1 4.6 0.1 2.2 2.5 1.4 6.4 reference footprint # 4 # 1 # 3 # 2 internal connections (top view) note) #2, #4, is connected with a cover. (please connect with gnd or a power supply. (mm) dimensions table 3 equivalent series resistance 4 9 ~ 50 40 ~ 150 70 ~ 160 frequency range (mhz) equivalent series resistance ( ? ) overtone fundamental 3rd overtone 5th overtone 40 60 80 item type frequency range overtone frequency tolerance (25??c) temperature characteristics (in reference to +25?c) operating temperature range equivalent series resistance drive level standard load capacitance operable temperature range 50 10 -6 50 10 -6 ?0 ~ +60?c nx7551sa (cp21b) 9.0 mhz ~ 160 mhz see table 3 10 10 -6 ? 10 -6 ?0 ~ +50?c see table 3 10 ? (100 ? max) 12pf (fundamental) ?0 ~ +85?c 4 4 10 10 -6 15 10 -6 ?0 ~ +85?c specification if you need non-standard specification, please contact us. [type name] in ( ) is previous name. standard frequency (mhz) fundamental 10.245 12.8 13.000 13.824 16.0 16.368 21.245 23.670833 24.576 25.000 33.000 39.000 44.545 57.645 76.210 82.7075 86.784 90.000 94.500
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