Crystal unit SMALL SMD HIGH - FREQUENCY CRYSTAL UNIT MA-306 Products number Q2 2MA 3 0 6 x x x x x 0 0 * High-density mounting-type SMD. * Excellent reliability and environment capability. * Capable of covering a wide frequency range. ( from 17.734 MHz to 41 MHz) Actual size Specifications (characteristics) Item Nominal frequency Drive level Specifications Remarks f 17.734 MHz to 41.000 MHz Fundamental mode Stored as bare product after unpacking TSTG -55 C to +100 C Operating temperature TOPR -20 C to +70 C Maximum drive level GL 2 mW Max. DL 10 W to 100 W f/f 50 x 10-6 Ta= +25 C 3 C 30 x 10-6 -20 C to +70 C Storage temperature Temperature range Symbol Recommended drive level Frequency tolerance (standard) Frequency temperature characteristics (standard) Only crystal oscillation is guaranteed Load capacitance CL 10 pF to Please specify Series resistance R1 60 Max. -20 C to +70 C, DL=100 W Shunt capacitance C0 5 pF Max. Insulation resistance IR 500 M Min. Aging fa 5 x 10-6 / year Max. S.R. 10 x 10-6 Max. Shock resistance Ta=+25 C 3 C, first year Three drops on a hard board from 750 mm or excitation test with 29400 m/s2 x 0.3 ms x 1/2 sine wave x 3 directions Metal may be exposed on the top of this product. This won't affect any quality, reliability or electrical spec. External dimensions (Unit: mm) #3 #1 #2 1.3 4.2 1.3 1.9 3.2 20.000M E 572 #4 3.8 Max. #3 #1 (Unit: mm) Internal connection 8.0 Max. #4 Recommended soldering pattern 1.9 2.38 2.54 Max. 1.3 #2 0.5 1.9 5.5 (0.9) Do not connect #2 and #3 to external device. 27 (0.9)