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Crystal unit SMALL SMD HIGH - FREQUENCY CRYSTAL UNIT
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)
Actual size
Specifications (characteristics)
Item Symbol f TSTG TOPR GL DL TSOL f/f Specifications 17.734 MHz to 41.000 MHz -55C to +100C -20C to +70C 2mW max. 10W to 100W Twice at under 260C within 10 sec. or under 230C within 3 min. 50ppm 30ppm CL R1 C0 IR fa 10pF to 60 max. 5pF max. 500 M min. 5ppm/year max. Ta=25C3C, first year Ta=25C3C -20C to +70C Please specify -20C to +70C, DL=100W Only crystal oscillation is guaranteed Remarks Fundamental mode Stored as bare product after unpacking
Nominal frequency Temperature range Drive level Storage temperature Operating temperature Maximum drive level
Recommended drive level
Soldering condition Frequency tolerance (standard) Frequency temperature characteristics (standard) Load capacitance Series resistance Shunt capacitance Insulation resistance Aging
Three drops on a hard board from 75 cm or excitation
Shock resistance
S.R.
10ppm max.
test with 3000G x 0.3ms x 1/2 sine wave x 3 directions
Metal may be exposed on the top of this product. This won't affect any quality, reliability or electrical spec.
External dimensions
Internal connection
#3 #4 3.8 max. #3
(Unit: mm)
Recommended soldering pattern
(Unit: mm)
8.0 max. #4
1.3
4.2
1.3
#1
#2
2.54 max.
2.38
0.5 5.5 (0.9) 1.9 (0.9)
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Do not connect #2 and #3 to external device.
1.9
1.3
1.9
20.000M E 572
3.2
#1
#2
24
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THE CRYSTALMASTER
ENERGY SAVING EPSON
EPSON offers effective savings to its customers through a wide range of electronic devices, such as semiconductors, liquid crystal display (LCD) modules, and crystal devices. These savings are achieved through a sophisticated melding of three different efficiency technologies. Power saving technology provides low power consumption at low voltages. Energy Saving Space saving technology provides further reductions in product size and weight Power Saving through super-precise processing and high-density assembly technology. Space Saving Time saving technology shortens the time required for design and development Time Saving on the customer side and shortens delivery times. Our concept of Energy Saving technology conserves resources by blending the essence of these three efficiency technologies. The essence of these technologies is represented in each of the products that we provide to our customers. In the industrial sector, leading priorities include measures to counter the greenhouse effect by reducing CO2, measures to preserve the global environment, and the development of energyefficient products. Environmental problems are of global concern, and although the contribution of energyResource saving technology developed by Saving EPSON may appear insignificant, we seek to contribute to the development of energy-saving products by our customers through the utilization of our electronic devices. EPSON is committed to the conservation of energy, both for the sake of people and of the planet on which we live.
SEIKO EPSON CORP. QUARTZ DEVICE DIVISION acquired ISO9001 and ISO14001 certification by B.V.Q. I. (Bureau Veritas Quality International) . ISO9001 in October, 1992. ISO14001 in November,1997. NOTICE
No part of this material may be reproduced or duplicated in any form or by any means without the written permission of Seiko Epson. Seiko Epson reserves the right to make changes to this material without notice. Seiko Epson does not assume any liability of any kind arising out of any inaccuracies contained in this material or due to its application or use in any product or circuit and, further, there is no representation that this material is applicable to products requiring high level reliability, such as, medical products. Moreover, no license to any intellectual property rights is granted by implication or otherwise, and there is no representation or warranty that anything made in accordance with this material will be free from any patent or copyright infringement of a third party. This material of portions there may contain technology or the subject relating to strategic products under the control of the Foreign Exchange and Foreign Trade Control Law of Japan and may require an export license from the Ministry of International Trade and Industry or other approval from another government agency.
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