Q13MC40610001

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Crystal unit<br>ja SEIKO EPSON CORPORATION<br>Product Number (please contact us)<br>MC-306  : Q1xMC3062xxxx00<br>kHz RANGE CRYSTAL UNIT MC-405  : Q1xMC4052xxxx00<br>MC-406  : Q1xMC4062xxxx00<br>SMD<br>-<br>MC 306<br>MC - 405 / MC - 406<br>Frequency range  :   32.768 kHz (20 kHz to 120 kHz)<br>Thickness  :   8.0 × 3.8 × 2.54 mm ···MC-306<br>Actual size<br>10.41 × 4.06 × 3.6 mm ···MC-405 / 406<br>Overtone order  :   Fundamental  MC-306  MC-405 / 406<br>Applications  :   Clock and Microcomputer<br>oe<br>ne Specifications (characteristics)<br>Item  Symbol  Specifications  Conditions / Remarks<br>Nominal frequency range  f_nom  32.768 kHz  20 kHz to 120 kHz  Please contact us about available frequencies.<br>Storage temperature  T_stg  -55 C to +125 C  Storage as single product.<br>Operating temperature  T_use  -40 C to +85 C<br>Level of drive  DL  1.0 W Max.<br>Frequency tolerance (standard)  f_tol  20  10 [-6] , 50  10 [-6] 50  10 [-6] , 100  10 [-6] +25 C, DL=0.1 W<br>Turnover temperature  Ti  +25 C 5 C<br>Parabolic coefficient  B  -0.04  10 [-6]  / °C [2] Max.<br>Load capacitance  CL  6 pF to  (standard :12.5 pF)  Please specify<br>Motional resistance (ESR)  R1 50 k Max.  As per table below<br>Motional capacitance  C1 2.0 fF Typ. 1.8 fF Typ.  4.0 fF to 0.6 fF  MCMC--405306  / 406<br>Shunt capacitance  C0 0.85 pF Typ. 0.9 pF Typ.  2.0 pF to 0.6 pF  MCMC--306 405 / 406<br>Frequency aging f_age  3  10 [-6]  / year Max.  5  10 [-6]  / year Max.  +25 C, First year<br>Motional resistance (ESR)<br>Frequency 20 kHzf_nom< 31.2 kHz  31.2 kHzf_nom< 40 kHz  40 kHzf_nom< 90 kHz  90 kHzf_nom120 kHz<br>Se Motional resistance  55 k Max.  35 k Max.  20 k Max.  12 k Max.<br>———<br>.  | External dimensions  (Unit:mm)<br>Internal connection in MC-405<br>MC-306  MC-405 / 406  (TOP VIEW)<br>8.0 Max.<br>#4 #3<br>#4  #3<br>Internal connection (TOP VIEW)  #4  32.768 k #3 # 1  #2<br>32.768 k  #4  #3 E   6571A  Internal connection in MC-406<br>E    571  #1  #2 (TOP VIEW)<br>#4  #3<br>9.60<br>#1  #2  #1  #2 10.41 Max. #1  #2<br>0.5<br>5.5  1.9  0.51  0.51<br>=—5 =<br>(0.9)  (0.9) 2.54  2.54  2.29<br>Do not connect #2 and #3 to external device.<br>The metal case inside of the molding compound may be exposed on the top or bottom of this product.  Do not connect #2 and #3 of MC-406 to external device.<br>This purely cosmetic and does not have any effect on quality, reliability or electrical specs.  The first digit of No. means:   5××××  MC-405<br>6××××  MC-406<br>| Footprint (Recommended)                                                                     (Unit:mm)<br>MC-306  MC-405  MC-406<br>4.1  3.9  4.1<br>4.1  3.9  4.1<br>TT]rP| ossf +<br>1.3  4.2  1.3<br>|_|. —___.|._] +<br>ee<br>3.2  4.06 Max.<br>3.8 Max.<br>2.38  3.15<br>2.54 Max.  3.6 Max.<br>0.2 Min.<br>1.52<br>1.9<br>4.1  0.8<br>1.52<br>1.3<br>1.9<br>**----- End of picture text -----**<br>


## **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. wit/£',~, 

(mn **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 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. 

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. For Automotive ~~< eee~~ 

## 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