Crystal unit Product Number (please contact us) FC-135 : Q1xFC1350xxxx00 kHz RANGE CRYSTAL UNIT FC-255 : Q1xFC2550xxxx00 LOW PROFILE SMD FC - 135 / FC - 255 Frequency range : 32.768 kHz (32 kHz to 100 kHz) External dimensions : 3.2 1.5 0.80 mm FC-135 : 4.9 1.8 0.80 mm FC-255 Overtone order : Fundamental Applications : Small communications devices Actual size FC-135 FC-255 Specifications (characteristics) Specifications Item Symbol Conditions / Remarks FC-135 FC-135 FC-255 FC-255 32 kHz to 32 kHz to Please contact us for inquiries Nominal frequency range f nom 32.768 kHz 32.768 kHz 100 kHz regarding available frequencies. 77.5 kHz Storage temperature T stg -55 C to +125 C Store as bare product. Operating temperature T use -40 C to +85 C Please contact us if you require Level of drive DL 0.5 W (1.0 W Max.) 0.5 W Max. 1.0 W Max. Frequency tolerance -6 +25 C, DL=0.1 W f tol 20 10 (standard) Please ask for tighter tolerance Turnover temperature Ti +25 C 5 C -6 2 Parabolic coefficient B -0.04 10 / CMax. Load capacitance CL 7 pF, 9 pF, 12.5 pF 7 pF, 12.5 pF Please specify 70 k to 70 k to Motional resistance (ESR) R1 70 k Max. 65 k Max. 45 k 30 k 3.7 fF to 2.3 fF to Motional capacitance C1 3.4 fF Typ. 2.0 fF Typ. 1.6 fF 0.6 fF 1.3 pF to 1.7 pF to Shunt capacitance C0 1.0 pF Typ. 1.3 pF Typ. 0.5 pF 0.9 pF -6 Frequency aging f age 3 10 / year Max. +25 C, First year External dimensions (Unit:mm) . FC-135 FC-255 A501J A501J 4.90.1 3.20.1 3.2 1.7 Internal Internal Connection Connection 1 2 1 2 1 2 1 2 0.85 0.75 Footprint (Recommended) (Unit:mm) 1.0 1.3 FC-135 FC-255 2.5 4.2 Do not design any patterns on shaded area. 1.50.1 0.80.1 1.8 1.80.1 0.80.1 2.2 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 ISO 14000 is an international standard for environmental improvements. The environmental management system (EMS) management that was established by the International operates under the ISO 14001 environmental management standard. Standards Organization in 1996 against the background of All of our major manufacturing and non-manufacturing sites, in growing concern regarding global warming, destruction of the ozone layer, and global deforestation. Japan and overseas, completed the acquisition of ISO 14001 certification. WORKING FOR HIGH QUALITY In order provide high quality and reliable products and services than meet customer needs, ISO/TS16949 is the international standard that added the Seiko Epson made early efforts towards obtaining ISO9000 series sector-specific supplemental requirements for automotive certification and has acquired ISO9001 for all business industry based on ISO9001. establishments in Japan and abroad. We have also acquired ISO/TS 16949 certification that is requested strongly by major automotive manufacturers as standard. 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