AT-CUT CRYSTAL UNIT (SMD * Plastic Package) CM309S 1000pcs/reel FEATURES 7Embeded with heat resistant cylinder type crystal bring highly stable characteristics. 7Automatic mounting and reflowable type. 7Suitable for various applications such as communication devices, AV devices, automotive devices and measuring instruments. Life-size DIMENSION [mm] SOLDER PAD LAYOUT [mm] 12.40.1 #4 Internal connection #3 #4 #3 4.40.2 1.8 #1 1.8 #2 #2 1.5 1.7 9.40.1 0.8 0.8 1.8 3.60.1 1.5 1.8 #1 7.6 1.0 Do not connect to external with #2 and #3 STANDARD SPECIFICATIONS Model Item Nominal Frequency CM309S Conditions 3.5MHz34.0MHz Fundamental f0 27.0MHz70.0MHz 3rd Overtone Need to contact us for the available frequency Frequency Tolerance f/f0 Frequency Tolerance over Operating Temperature Range f/f0 Operating Temperature Range TOPR -4085 Storage Temperature Range TSTR -55125 Motional (series) resistance R1 Refer to the following table at 25C Load capacitance CL 16.0pF, 18.0pF Need to specify your requirement Shunt capacitance C0 7.0pF Max. Level of drive DL 100W Insulation Resistance IR 500MMin. DC100V15V f/f0 5ppm Max. 253 Aging (first year) 30ppm at 25C below 6.0MHz50ppm -1060 above 6.0MHz30ppm See figure 3 in P4 MOTIONAL (SERIES) RESISTANCE (R1) Frequency Range Mode R1 3.5MHzf04.0MHz 4.0MHz f0 6.0MHz 6.0MHzf010MHz 27MHzf036MHz 36MHzf070MHz Fundamental Fundamental Fundamental Fundamental Fundamental 3rd Overtone 3rd Overtone 200Max. 150Max. 100Max. 50Max. 50Max. 100Max. 80Max. http://cfm.citizen.co.jp/english/product/pr02.html 15 10MHzf027MHz Part Numbering System[ AT-cut Crystal Units ] | Quartz Crystal / Oscillator... 1 of 3 http://cfm.citizen.co.jp/english/product/cvo_pns2.html Japanese HOME Products Technology Contact Us Sitemap Corporate Information CSR Activities HOME > Products > Quartz Crystal / Oscillator > Part Numbering System > AT-cut Crystal Units Quartz Crystal / Oscillator Part Numbering System AT-cut Crystal Units Quartz Crystal Blank Quartz Crystal / Oscillator Quartz Crystal List Crystal Oscillator List In order to use the product correctly Glossary Packing specification Notes Type of cut crystal Equivalent circuit of quartz crystal Cutting direction and frequency Temperature characteristics Test Circuit Output waveform Part Numbering System Ferroelectric Micro LCDs Transmissive LCOS Electronic Viewfinders Optical Communication Device Components Magnets Bearing Jewels Ceramic Parts Thin-film Submount Gyro Sensor Combustion Pressure Sensor Gas Sensor 25-Oct-2011 4:50 PM Part Numbering System[ AT-cut Crystal Units ] | Quartz Crystal / Oscillator... 2 of 3 Quartz Crystal Blank Crystal Oscillator List In order to use the product correctly Packing specification http://cfm.citizen.co.jp/english/product/cvo_pns2.html Notes Glossary Type of cut crystal Equivalent circuit of quartz crystal 25-Oct-2011 4:50 PM Part Numbering System[ AT-cut Crystal Units ] | Quartz Crystal / Oscillator... 3 of 3 http://cfm.citizen.co.jp/english/product/cvo_pns2.html Cutting direction and frequency Temperature characteristics Test Circuit Privacy Policy Output waveform Part Numbering System Notice Copyright (C) 2011 CITIZEN FINETECH MIYOTA CO.,LTD. All Rights Reserved. 25-Oct-2011 4:50 PM