Crystal unit SMD LOW/MEDIUM-FREQUENCY CRYSTAL UNIT MC-405/406 Product number (please refer to page 1) Q1 xMC 4 0 5 x x x x x 0 0 Q1 xMC 4 0 6 x x x x x 0 0 • • • • • High-density mounting-type SMD. Photolithography finished allows uniform, stable performance. Excellent environmental capability. Capable of covering low-frequency range from 20 kHz to 165 kHz. Suitable for time keeping of clock and microcomputer. Actual size Nominal frequency range Temperature range Specifications Symbol Item Storage temperature Operating temperature Maximum drive level 20.000 kHz to 165.000 kHz 32.768 kHz f Remarks TSTG -55 °C to +125 °C TOPR -40 °C to +85 °C 1.0 µW Max. GL ±20 x 10 , ±50 x 10 -6 ±50 x 10-6, ±100 x 10-6 -6 Frequency tolerance (standard) ∆f/f Turnover temperature (frequency) θT +25 °C ±5 °C a -0.04 x 10-6 / °C2 Max. Temperature coefficient (frequency) Stored as bare product after unpacking Ta=+25 °C, DL=0.1 µW 6 pF to ∞ (Standard : 12.5 pF) Load capacitance CL Series resistance R1 Motion capacitance C1 2.0 fF Typ. 4.0 fF to 0.6 fF Shunt capacitance C0 0.85 pF Typ. 2.0 pF to 0.6 pF Insulation resistance IR Aging fa 50 kΩ Max. Please specify For details, refer to page 13 55 kΩ to 10 kΩ 500 MΩ Min. ±3 x 10-6 /year Max. Ta=+25 °C±3 °C, first year ±5 x 10-6/year Max. Three drops on a hard board from 750 mm Shock resistance or excitation test with 29400 m/s2 x 0.3 ms x ±5 x 10-6 Max. S.R. 1/2 sine wave x 3 directions (Unit: mm) #2 #4 #3 #1 #2 (Unit: mm) MC-405 4.1 #1 #3 4.06 Max. Internal connection in MC-405 #4 Internal connection in MC-406 9.6 10.41 Max. #4 #3 #1 #2 4.1 3.9 4.1 4.1 3.9 4.1 Do not connect #2 and #3 of MC-406 to external device. MC-405 The first digit of No. means: 5XXXX 6XXXX MC-406 21 0.8 1.5 0.51 1.5 3.15 2.54 0.2 Min. 2.54 3.6 Max. MC-406 0.51 2.29