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| EURO QUARTZ X42 CRYSTALS 4mm x 2.5mm x 0.6mm SMD 12.0MHz to 50MHz SURFACE MOUNT CRYSTALS DESCRIPTION X42 crystals are micro-miniature surface-mount mount crystals. The crystals have a gold plated ceramic base and a seam welded metal lid providing a stable crystal with very low ageing. The rugged construction ensures that this crystal has high shock and vibration resistance. The crystal has been specifically designed for use in small hand-held communication equipment such as PDAs, GPS and Bluetooth. FEATURES * * * * * Miniature size: 4.0mm x 2.5mm x 0.6mm height Gold-plated ceramic base with metal seam-welded package Very low ageing Designed for hand-held equipment, PDAs, Blue Tooth, GPS High shock and vibration resistance SPECIFICATION Frequency Range AT-Cut Fundamental: Calibration Tolerance at 25C*: Frequency stability* -10 to +60C -20 to +70C -30 to +85C Storage Temperature: Equivalent Series Resistance: Shunt Capacitance (C0): Load Capacitance (CL): Ageing: Drive level: Reflow Soldering: Packaging: OUTLINE & DIMENSIONS 12.0MHz to 50.0MHz from 5ppm (10, 20 or 30ppm standard) from 5ppm from 10ppm from 10ppm -40~+85C See table 2pF to 4pF typical, 5pF maximum Series or from 10pF to 32pF (Customer specified CL) <3ppm per year at +25C 100 microW maximum 10s maximum at 260C twice or 180s at 230C, once. 16mm EIA tape and reel *Note: Tighter stability, tolerance and lower ESR values are available. PART NUMBER GENERATION EQUIVALENT SERIES RESISTANCE Frequency Range MHz 12.0 ~ 20.0 20.1 ~ 50.0 ESR Crystal Cut/ Ohms Max. Mode AT Fund. AT Fund. 80 60 Part numbers for X42 crystals are generated as follows: Example: 12.000MHz X42/20/30/-10+60/12pF/60R Nominal Frequency Package Calibration tolerance at 25C (ppm) Temperature Stability over temp. range (ppm) Operating Temp. Range (C) (Lower and upper limits) Load Capacitance (Either SR for series or CL in pF) Equivalent Series Resistance (When special value is required) EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 Email: info@euroquartz.co.uk www.euroquartz.co.uk |
Price & Availability of 12000X422030-101260R
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