Crystal unit Product Number (please contact us) MC-146 : Q1xMC1462xxxx00 MC-156 : Q1xMC1562xxxx00 kHz RANGE CRYSTAL UNIT LOW PROFILE SMD MC - 146 / MC - 156 Frequency range External dimension : : : : : Overtone order Applications 32.768 kHz (32 kHz to 100 kHz) 7.0 x 1.5 x 1.4 mm ***MC-146 7.1 x 3.3 x 1.5 mm ***MC-156 Fundamental Small communications devices Actual size MC-146 MC-156 Specifications (characteristics) Item Symbol Nominal frequency range f_nom 32.768 kHz T_stg -55 C to +125 C Operating temperature T_use -40 C to +85 C 1.0 W Max. DL Frequency tolerance (standard) f_tol 20 10 , 50 10 -6 Operating Drive level 50 10 , 100 10 -6 -6 Turnover temperature Ti +25 C 5 C Parabolic coefficient B -0.04 10 / C Max. -6 -6 CL Motional resistance (ESR) R1 7 pF, 9 pF, 12.5 pF Motional capacitance C1 1.9 fF Typ. 2.5 fF to 0.6 fF Shunt capacitance C0 0.8 pF Typ. 1.2 pF to 0.5 pF f_age 3 10 / year Max. 5 10 / year Max. 65 k Max. 0.5 W Max. +25 C, DL=0.1 W 2 Load capacitance Frequency aging Conditions / Remarks Please contact us for inquiries regarding available frequencies Store as bare product. 32 kHz to 100 kHz Storage temperature Level of drive Please specify 65 k to 25 k -6 +25 C, First year -6 External dimensions (Unit:mm) MC-156 #1 6.7 7.0 Max. EA9 6 #2 #1 0.1 #3 #2 #1 0.4 #1 #3 #1 #2 1.30 0.4 5.08 (0.75) 1.6 (0.75) #2 0.25 #4 0.2 0.15 0.4 0.2 #4 #2 1.4 Max. 0.1 Internal connection (TOP VIEW) 7.1 Max. #4 3.3 Max. 0.3 EA9 9 Internal connection (TOP VIEW) #4 #3 1.5 Max. 0.55 #3 2.50 #4 1.5 Max. 0.3 MC-146 #3 0.2 Do not connect #2 and #3 to external device. Metal may be exposed on the top or bottom of this product. This will not affect any quality, reliability or electrical spec. Footprint (Recommended) (Unit:mm) MC-146 1.0 0.6 0.3 1.5 MC-156 1.5 0.6 . Specifications 1.2 5.1 1.2 1.2 3.88 1.2 PROMOTION OF ENVIRONMENTAL MANAGEMENT SYSTEM CONFORMING TO INTERNATIONAL STANDARDS At Seiko Epson, all environmental initiatives operate under the Plan-Do-Check-Action (PDCA) cycle designed to achieve continuous improvements. The environmental management system (EMS) operates under the ISO 14001 environmental management standard. All of our major manufacturing and non-manufacturing sites, in Japan and overseas, completed the acquisition of ISO 14001 certification. ISO 14000 is an international standard for environmental management that was established by the International Standards Organization in 1996 against the background of growing concern regarding global warming, destruction of the ozone layer, and global deforestation. WORKING FOR HIGH QUALITY In order provide high quality and reliable products and services than meet customer needs, Seiko Epson made early efforts towards obtaining ISO9000 series certification and has acquired ISO9001 for all business establishments in Japan and abroad. We have also acquired ISO/TS 16949 certification that is requested strongly by major automotive manufacturers as standard. ISO/TS16949 is the international standard that added the sector-specific supplemental requirements for automotive industry based on ISO9001. Explanation of the mark that are using it for the catalog Pb free. Complies with EU RoHS directive. *About the products without the Pb-free mark. Contains Pb in products exempted by EU RoHS directive. (Contains Pb in sealing glass, high melting temperature type solder or other.) The products have been designed for high reliability applications such as Automotive. Notice * * * * * * This material is subject to change without notice. Any part of this material may not be reproduced or duplicated in any form or any means without the written permission of Seiko Epson. The information about applied circuitry, software, usage, etc. written in this material is intended for reference only. Seiko Epson does not assume any liability for the occurrence of infringing on any patent or copyright of a third party. This material does not authorize the licensing for any patent or intellectual copyrights. When exporting the products or technology described in this material, you should comply with the applicable export control laws and regulations and follow the procedures required by such laws and regulations. You are requested not to use the products (and any technical information furnished, if any) for the development and/or manufacture of weapon of mass destruction or for other military purposes. You are also requested that you would not make the products available to any third party who may use the products for such prohibited purposes. These products are intended for general use in electronic equipment. When using them in specific applications that require extremely high reliability, such as the applications stated below, you must obtain permission from Seiko Epson in advance. / Space equipment (artificial satellites, rockets, etc.) / Transportation vehicles and related (automobiles, aircraft, trains, vessels, etc.) / Medical instruments to sustain life / Submarine transmitters / Power stations and related / Fire work equipment and security equipment / traffic control equipment / and others requiring equivalent reliability. * All brands or product names mentioned herein are trademarks and/or registered trademarks of their respective. Seiko Epson Corporation