MJ2 surface mount crystals fund. 3rd o.t. [ 5.0 * 3.2 * 0.9 mm ] min. max. 12 mhz 125 mhz features specifications the entire package can be grounded via the top metal lid and the two bottom pads frequency tolerance as tight as +/-5ppm is available. general specifications item / type MJ2 series ( 5.0 * 3.2 * 0.9 mm ) frequency range & crystal cut 12.000 ~ 50.000 mhz , at-cut , fundamental mode ( see table 1 ) 40.000 ~ 125.000 mhz , at-cut , 3rd overtone ( see table 1 ) note : frequencies between 40 and 50 mhz can be either at fundamental or at 3rd overtone. please add " af " after the frequency on the part number for an at-cut fundamental mode crystal and " a3 " for an at-cut 3rd overtone crystal. for example: mj-40.000af-20p. load capacitance series or parallel ( 8 to 32 pf ) resonance drive level 10 w typical ( 100 w max. ) frequency tolerance 5 ppm , 10 ppm , 20 ppm or 30 ppm at 25c frequency stability see table 2 aging f / f : 3 ppm / year ( max. ) storage temperature range - 50c to 105c table 1 table 2 esr ( equivalent series resistance ) frequency stability vs operating temperature range frequency range oscillator mode e. s. r. stability code temp. (oc) \ ppm 5 10 15 20 25 30 at-cut , fund. mode 50 ? max x -10 to 60c 12.00 ~ 50.000 mhz 40.000 ~ 125.000 mhz at-cut , 3rd overtone 80 ? max y -20 to 70c i -40 to 85c : available ; : contact mercury outline dimensions ( unit : mm ) mercury www .mercury-crystal.com taiwan : tel (886)-2-2406-2779 / sales-tw@mercury-crystal.com u.s.a: tel: (1)-909-466-0427 / sales-us@mercury-crystal.com china: tel: (86)-512-5763-8100 / sales-cn@mecxtal.com
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