24 crystal unit specifications (characteristics) recommended soldering pattern external dimensions (unit: mm) do not connect #2 and #3 to external device. internal connection (unit: mm) #4 #4 #3 #1 #2 #3 #1 0.5 5.5 (0.9) (0.9) 1.9 #2 3.2 2.38 2.54 max. 3.8 max. 8.0 max. 20.000m 572 e 1.3 1.9 1.3 1.9 1.3 4.2 small smd high - frequency crystal unit MA-306 high-density mounting-type smd. excellent reliability and environment capability. capable of covering a wide frequency range. ( from 17.734 mhz to 41 mhz) item nominal frequency temperature range drive level soldering condition frequency tolerance (standard) frequency temperature characteristics (standard) load capacitance series resistance shunt capacitance insulation resistance aging shock resistance symbol f t stg t opr gl dl t sol ? f/f c l r 1 c 0 ir fa s.r. specifications 17.734 mhz to 41.000 mhz -55 c to +100 c -20 c to +70 c 2 mw max. 10 w to 100 w twice at under +260 c within 10 s or under +230 c within 3 min. 50 x 10 -6 30 x 10 -6 10 pf to 60 ? max. 5 pf max. 500 m ? min. 5 x 10 -6 / year max. 10 x 10 -6 max. remarks fundamental mode stored as bare product after unpacking only crystal oscillation is guaranteed ta= +25 c 3 c -20 c to +70 c please specify -20 c to +70 c, dl=100 w ta=+25 c 3 c, first year three drops on a hard board from 750 mm or excitation test with 29400 m/s 2 x 0.3 ms x 1/2 sine wave x 3 directions storage temperature operating temperature maximum drive level recommended drive level actual size metal may be exposed on the top of this product. this won't affect any quality, reliability or electrical spec.
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