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| THROUGH-HOLE CRYSTALS UM-1SL SLIMLINE CRYSTALS DESCRIPTION UM-1 Slimline crystals are popular for communications applications such as pagers where their small size and slimline profile is easily incorporated into equipment designs. The crystal blank used in this package is capable of being manufactured to close tolerances and is readily produced with custom frequencies and specifications. OUTLINES AND DIMENSIONS FEATURES * * * * * Wide frequency range Small profile, low-mass package Close tolerances easily achieved Fully customisable specification Industry-standard package GENERAL SPECIFICATION Frequency Range: Oscillation Mode: Calibration Tolerance at 25C: Frequency stability over temp: Operating Temperature Range: Shunt Capacitance (C0): Load Capacitance (CL): Effective Series Resistance: Ageing: Drive level: Holder: Supply format: 8.0MHz to 200MHz See table from 3ppm from 2.5ppm -10 to +60C From 0~+50 to -55~+105C 4pF typical, 7pF maximum Series or from 8pF to 32pF (Customer to specify CL) See table 2ppm max 1st year, 1ppm max per year after 100mW maximum Resistance-weld, hermetic seal Bulk pack 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) 2.5 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-1SL crystal part numbers are derived as follows: OSCILLATION MODE & ESR Frequency (MHz) 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 AT Fund. AT Fund. AT Fund. AT Fund. AT 3rd OT AT 5th OT AT 7th OT ESR (max) (Ohms) 80 60 40 25 40 50 70 Example: 16.000MHz UM-1SL/10/20/10/30pF/ATF Frequency Package = UM-1SL 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 - 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 |
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