dimensions: inch (mm) frequency range operating temperature rev1.1-05/06 abracon is a b r a c o n i s iso 9001 / qs 9000 i s o 9 0 0 1 / q s 9 0 0 0 certified c e r t i f i e d abracon is iso 9001 / qs 9000 certified 30332 esperanza, rancho santa margarita, california 92688 tel 949-546-8000 | fax 949-546-8001 | www.abracon.com ||||||||||||||| ascf21ub surface mount crystal filter s u r f a c e m o u n t c r y s t a l f i l t e r surface mount crystal filter standard specifications: ordering information: outline drawing: ascf21ubxx - packaging -t tape and reel (1,000pcs/reel) features: surface-mount ceramic package. reflow capable. excellent attenuation bandwidth. low height (1.0mm max.) applications: mobile communication systems. pagers. cellular and cordless phones. radios. 6.0 x 3.5 x 1.0mm *rohs compliant parameters 21.400mhz - 20 c to + 70 c marking: - 21.4 - ubxx zy xx : suffix of p/n zy : date code z = month (a to l) y = year (6 for 2006) series no. pole ri pp le loss db khz db khz db db 21ub7a 2 3 3.75 18 18.0 1.0 1.5 21ub7b 4 3 3.75 35 14.0 1.0 2.5 21ub15a 2 3 7.5 15 25.0 1.0 1.5 21ub15b 4 3 7.5 35 25.0 1.0 2.5 21ub20a 2 3 10.0 15 34.0 1.0 2.0 21ub20b 4 3 10.0 35 34.0 1.0 2.5 21ub30a 2 3 15.0 15 45.0 1.0 1.5 21ub30b 4 3 15.0 35 50.0 1.0 2.5 pass band attenuation band series no. attenuation guaranteed db khz 21ub7a 50 -91010 21ub7b 80 -91010 21ub15a 50 -91010 21ub15b 80 -91010 21ub20a 50 -91010 21ub20b 80 -91010 21ub30a 45 -91010 21ub30b 80 -91010 850//6.0 850//3.5 1500//2.0 1500//0.5 1800//0.5 1800//-1.0 3000//0 3000//-1.5 1 terminal impedance ( ? //pf ) case quantit y 2 1 2 2 1 2 1
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