MC-306 32.7680K-E3:ROHS

Crystal unit Product Number MC-306 : Q1xMC3062xxxx00 kHz RANGE CRYSTAL UNIT MC-306 / MC-306 TYPE •Frequency range •Thickness •Overtone order •Applications : : : : : MC-306··· 32.768 kHz MC-306 TYPE··· 20 kHz to 120 kHz 8.0 × 3.8 × 2.54 mm Fundamental Clock and Microcomputer Specifications (characteristics) Item Specifications Symbol Nominal frequency range Storage temperature Operating temperature Level of drive Frequency tolerance (standard) Turnover temperature Parabolic coefficient Load capacitance Motional resistance (ESR) Motional capacitance Shunt capacitance Frequency aging MC-306 32.768 kHz MC-306 TYPE 20 kHz to 120 kHz -55 C to +125 C -40 C to +85 C 1.0 W Max. 20  10-6, 50  10-6 50  10-6, 100  10-6 +25 C 5 C -0.04 × 10-6 / °C2 Max. 6 pF to  (standard :12.5 pF) 50 k Max. As per table below 1.8 fF Typ. 4.0 fF ~ 0.6 fF 0.9 pF Typ. 2.0 pF ~ 0.6 pF -6 3  10 / year Max. 5  10-6 / year Max. f_nom T_stg T_use DL f_tol Ti B CL R1 C1 C0 f_age Conditions / Remarks Please contact us about available frequencies. Storage as single product. +25 C, DL=0.1 W Please specify +25 C, First year MC-306 TYPE Motional resistance (ESR) 20 kHzf_nom< 31.2 kHz 55 k Max. Product name (Standard form) MC-306 32.768000kHz 12.5 +20.0-20.0 ① ② ③ ④ ①Model ②Frequency ③Load capacitance(pF) 31.2 kHzf_nom< 40 kHz 35 k Max. 40 kHzf_nom< 90 kHz 20 k Max. 90 kHzf_nom120 kHz 12 k Max. ④Frequency tolerance(× 10-6, +25 C) External dimensions (Unit:mm) 8.0 Max. 3.8 Max. #3 #4 32.768 k E 571 #2 #1 #2 2.54 Max. 2.38 #1 Internal connection (TOP VIEW) #3 #4 0.5 1.9 5.5 (0.9) (0.9) Do not connect #2 and #3 to external device. The metal case inside of the molding compound may be exposed on the top or bottom of this product. This purely cosmetic and does not have any effect on quality, reliability or electrical specs. Footprint (Recommended) (Unit:mm) 5.5 1.9 3.2 . Frequency Motional resistance 1.3 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. 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