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| SURFACE-MOUNT CRYSTALS UM-1SMD and UM-5SMD CRYSTALS Surface-mount UM-1 and UM-5 DESCRIPTION UM1-SMD and UM-5SMD crystals are standard UM-1/UM-5 crystals but with formed leads and fitted with a clip to enable surface-mount PCB assembly. The crystal therefore offers the ease of surface-mount assembly with the technical benefits of close-tolerance crystal parameters achievable by the use of circular AT-Cut crystal blanks. OUTLINES AND DIMENSIONS FEATURES * * * * * * Surface mount version of UM-1/UM-5 Available with close tolerances Fully customisable for application requirements Quick deliveries available Industry-standard package Low installed cost GENERAL SPECIFICATION Frequency Range UM-1SMD: UM-5SMD: Oscillation Mode: Calibration Tolerance at 25C SL-Cut (<1.3MHz): AT-Cut (>1.3MHz): Frequency stability over temp SL-Cut (<1.3MHz): AT-Cut (>1.3MHz): Shunt Capacitance (C0): Load Capacitance (CL): Ageing: Drive level: Holder: Holder Variants: Supply format: 1.0MHz to 200MHz 10MHz to 200MHz See table from 50ppm from 3ppm from 100ppm -10 to +60C from 3ppm 0 to +50C See table for details 4pF typical, 7pF maximum Series or from 8pF to 32pF (Customer to specify CL) 2ppm max 1st year, 1ppm max per year after 100mW maximum Resistance-weld, hermetic seal UM-1SMD or UM-5SMD (See outline drawing) Bulk pack (standard) or tape and reel FREQUENCY STABILITY OVER TEMPERATURE Operating Temp. C 0 to +50 -10 to +60 -20 to +70 -30 to +80 -40 to +90 -55 to +105 Temperature Stability (ppm) 3 u u X X X X 5 u u u X X X 7.5 u u u X X X 10 u u u u X X 15 u u u u u X 20 u u u u u u 30 u u u u u u PART NUMBER GENERATION UM-1SMD crystals part numbers are derived as follows: OSCILLATION MODE & ESR Frequency (MHz) 1.0 ~ 1.2 4.0~4.9 5.0~5.9 6.0~6.9 7.0~7.9 8.0~9.9 10.0~10.99 11.0~12.9 13.0~45.0 30.0~50.0 50.1~100.0 80.0~200 Crystal Cut Osc. Mode SL Fund. AT Fund. AT Fund. AT Fund. AT Fund. AT Fund. AT Fund. AT Fund. AT Fund. AT 3rd OT AT 5th OT AT 7th OT ESR (max) (Ohms) 5000 150 120 100 70 80 60 40 25 40 50 70 Example: 16.000MHz UM-1SMD/10/20/10/30pF/ATF Frequency Package - UM-1SMD - UM5-SMD Calibration Tolerance at 25C (in ppm) Temperature Stability (in ppm) Operating Temperature Range (lower figure of temperature range) Circuit Condition (CL in pF or SERIES) Mode - SLF (SL-Cut, fund.) - ATF (AT-Cut, fund.) - AT3 (AT-Cut, 3rd overtone) - AT5 (AT-Cut, 5th overtone) - AT7 (AT-Cut, 7th overtone) EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE Tel: +44 1460 230000 Fax: +44 1460 230001 email: info@euroquartz.co.uk web: www.euroquartz.co.uk |
Price & Availability of 16000UM-1SMD10201030-AT3
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