MC-405/MC-406 3000G MC-405 MC-406

SMD LOW/MEDIUM-FREQUENCY CRYSTAL UNIT MC-405/MC-406 · · · · · High-density mounting - type

Crystal unit SMD LOW/MEDIUM-FREQUENCY CRYSTAL UNIT MC-405/MC-406 MC-405/MC-406 · · · · · High-density mounting - type SMD. Photolithography finished allows uniform, stable performance. Excellent shock resistance and environmental capability. Capable of covering low-frequency range from 20 kHz to 165 kHz. Suitable for time keeping of clock and microcomputer. Actual size Specifications (characteristics) Nominal frequency range Temperature range Specifications Symbol Item Storage temperature Operating temperature 20.000 kHz to 165.000 kHz 307.2 kHz 32.768 kHz f Remarks TSTG Stored as bare product after unpacking -55°C to +125°C TOPR -40°C to +85°C Maximum drive level GL 1.0µW max. Soldering condition TSOL Twice at under 260°C within 10 sec. or under 230°C within 3 min. Frequency tolerance (standard) f/f Turnover temperature (frequency) ±20ppm, ±50ppm ±50ppm, ±100ppm (307.2 kHz: ±100ppm) T Temperature coefficient (frequency) a -0.04ppm/ °C2 max. Load capacitance CL 6pF to Series resistance Ta=25°C, DL=0.1µW 25°C ±5°C Please specify R1 50 k max. C1 2.0fF typ. 4.0fF to 0.6fF Shunt capacitance C0 0.85pF typ. For details, refer to 15 55 k to 6 k Motion capacitance Insulation resistance IR Aging fa 2.0pF to 0.6pF 500 M min. ±3ppm/year max. Ta=25°C±3°C, first year ±5ppm/year max. Three drops on a hard board from 75 cm Shock resistance or excitation test with 3000G 3000G x 0.3ms x ±5ppm max. S.R. 1/2 sine wave x 3 directions External dimensions (Unit: mm) 32.768k E 6571A #1 #2 #4 MC-405 MC-405 #3 #1 (Unit: mm) #2 4.1 #3 4.06 max. Internal connection in MC-405 MC-405 #4 Recommended soldering pattern Internal connection in MC-406 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 MC-406 to external device. The first digit of No. means: 5XXXX MC-405 MC-405 6XXXX MC-406 MC-406 19 0.8 1.5 1.5 3.15 2.54 0.2 min. 2.54 3.6 max. MC-406 MC-406 2.29 (0.51) (0.51)