SMALL SMD HIGH - FREQUENCY QUARTZ CRYSTAL 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) 2.54mm thickness is equal to SMD-type IC. @ Specifications (characteristics) Actual size Item Symbol Specifications Remarks Nominal frequency f 17.734 MHz to 41.000 MHz Fundamental mode -55C to +100C Stored as bare product after unpackin Temperature Storage temperature Tstc p Pi 9 range Operating temperature Tora -20C to +70C Maximum drive level GL 2mW max. Only crystal oscillation is guaranteed Drive level : Recommended drive level DL 10pW to 100uW Twice at under 260C within 10 sec. {dering condition Tsou So g or under 230C within 3 min. Frequency tolerance (standard) Afft +50ppm Ta=25C#3C Frequency temperature characteristics 230ppm 20C to +70C (standard) Load capacitance CL 10PF to oo Please specify Series resistance Ri 60 2 max. -20C to +70C. DL=100uW Shunt capacitance Co 5pF max. insulation resistance IR 500 MQ min. Aging fa +5ppm/Y max. Ta=25C+3C, first year Three drops on a hard board from 75 cm or excitation Shock resistance S.R. +10ppm max. Pp test with 3000G x 0.3ms x 1/2 sine wave x 3 directions B External dimensions (Unit: mm} Ill Recommended soldering pattern (Unit: mm) 8.0 max. Internal connection HA #3 __ a4 = mannan > poocacpesennnncneeacpose en : 8 4.2 1.3 eE 572 | | apo Te ; a #2 ~ Do not connect #2 and #3 to external device. (0.9) 10.9) 1.3 1.9 18