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| www..com 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 Specifications (characteristics) Item Symbol 32.768 kHz Specifications Remarks Nominal frequency range f TSTG TOPR GL f/f T a CL R1 C1 C0 IR fa 20.000 kHz to 165.000 kHz -55 C to +125 C -40 C to +85 C 1.0 W Max. Stored as bare product after unpacking Temperature range Storage temperature Operating temperature Maximum drive level Frequency tolerance (standard) Turnover temperature (frequency) Temperature coefficient (frequency) Load capacitance Series resistance Motion capacitance Shunt capacitance Insulation resistance Aging 20 x 10 , 50 x 10 -6 -6 50 x 10-6, 100 x 10-6 +25 C 5 C Ta=+25 C, DL=0.1 W -0.04 x 10-6 / C2 Max. 6 pF to (Standard : 12.5 pF) 50 k Max. 2.0 fF Typ. 0.85 pF Typ. 500 M Min. 3 x 10-6 /year Max. 5 x 10-6/year Max. Ta=+25 C3 C, first year 55 k to 10 k 4.0 fF to 0.6 fF 2.0 pF to 0.6 pF Please specify For details, refer to page 13 Three drops on a hard board from 750 mm Shock resistance S.R. 5 x 10-6 Max. or excitation test with 29400 m/s2 x 0.3 ms x 1/2 sine wave x 3 directions External dimensions 4.06 Max. #4 (Unit: mm) Recommended soldering pattern MC-405 (Unit: mm) Internal connection in MC-406 #4 #1 #3 #2 4.1 3.9 4.1 9.6 10.41 Max. MC-406 3.6 Max. 3.15 0.8 1.5 0.51 2.29 4.1 3.9 4.1 0.51 1.5 2.54 2.54 Do not connect #2 and #3 of MC-406 to external device. The first digit of No. means: 5XXXX MC-405 6XXXX MC-406 21 DataSheet 4 U .com 0.2 Min. 4.1 #1 32.768k E 6571A Internal connection in MC-405 #3 #4 #1 #3 #2 #2 |
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