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MC306

ETC
Part Number MC306
Manufacturer ETC
Description SMALL SMD LOW / MEDIUM-FREQUENCY CRYSTAL
Published Jun 24, 2006
Detailed Description www.DataSheet4U.com SMALL SMD LOW / MEDIUM-FREQUENCY CRYSTAL UNIT MC-306 • • • • High-density mounting-type SMD. Photo...
Datasheet PDF File MC306 PDF File

MC306
MC306

Overview
www.
DataSheet4U.
com SMALL SMD LOW / MEDIUM-FREQUENCY CRYSTAL UNIT MC-306 • • • • High-density mounting-type SMD.
Photolithography finished allows uniform and stable performance.
Excellent reliability and environmental capability.
2.
54mm thickness is equal to SMD-type IC.
Actual size Specifications (characteristics) Item Symbol f TSTG TOPR GL TSOL ∆f/f θT a CL 32.
768 kHz Specifications 20.
000 kHz to 165.
000 kHz -55˚C to +125˚C -40˚C to +85˚C 1.
0µW max.
Twice at under 260˚C within 10 sec.
Stored as bare product after unpacking Remarks Nominal frequency Temperature range Storage temperature Operating temperature Maximum drive level Soldering condition Frequency tolerance (standard) Peak temperature (frequency) Temperature coefficient (frequency) Load capacitance Series resistance Motional capacitance Shunt capacitance Insulation resistance Aging or under 230˚C within 3 min.
±20ppm, ±50ppm ±50ppm, ±100ppm 25˚C ±5˚C -0.
04ppm/ ˚C2 max.
6pF to ∞ Please specify 55 kΩ to 10 kΩ 4.
0fF to 0.
6fF As per below table Ta=25˚C, DL=0.
1µW www.
DataSheet4U.
com R1 C1 C0 IR fa ±3ppm/Y max.
50 kΩ max.
1.
8fF typ.
0.
9pF typ.
2.
0pF to 0.
6pF 500 MΩ min.
±5ppm/Y max.
S.
R.
±5ppm max.
Ta=25˚C ±3˚C, first year Three drops on a hard board from 75 cm or excitation test with 3000G x 0.
3ms x 1/2 sine wave x 3 directions Shock resistance There are some cases that a parts of the cylindrical capsule of quartz unit expose on the surface of the molding material.
Series resistance Frequency (kHz) Series resonance resistance (Ω) 20 ≤ f < 30 55K Ω max.
30 ≤ f < 40 45K Ω max.
40 ≤ f < 60 20K Ω max.
(Unit: mm) 60 ≤ f < 70 15K Ω max.
70 ≤ f < 120 12K Ω max.
120 ≤ f < 165 10K Ω max.
(Unit: mm) External dimensions 8.
0 max.
#4 #3 Recommended soldering pattern 1.
3 4.
2 1.
3 Internal connection #4 3.
8 max.
#3 #1 #2 #1 #2 2.
54 max.
2.
38 0.
5 5.
5 (0.
9) 1.
9 (0.
9) Do not connect #2 and #3 to external device.
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