X42 EUROQUARTZ | Alldatasheet
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Technical content
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE SURFACE MOUNT CRYSTALS X42 CRYSTALS 4mm x 2.5mm x 0.6mm SMD 12.0MHz to 50MHz
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.
- 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
FEATURES
OUTLINE & DIMENSIONS Frequency Range AT-Cut Fundamental: 12.0MHz to 50.0MHz Calibration Tolerance at 25ºC*: from ±5ppm (±10, ±20 or ±30ppm standard) Frequency stability* -10° to +60°C from ±5ppm -20° to +70°C from ±10ppm -30° to +85°C from ±10ppm Storage Temperature: -40°~+85°C Equivalent Series Resistance: See table Shunt Capacitance (C0): 2pF to 4pF typical, 5pF maximum Load Capacitance (CL): Series or from 10pF to 32pF (Customer specified CL) Ageing: <±3ppm per year at +25°C Drive level: 100 microW maximum Reflow Soldering: 10s maximum at 260°C twice or 180s at 230°C, once. Packaging: 16mm EIA tape and reel SPECIFICATION 12.0 ~ 20.0 AT Fund. 80 20.1 ~ 50.0 AT Fund. 60 Frequency Range MHz Crystal Cut/ Mode ESR Ohms Max. EQUIVALENT SERIES RESISTANCE *Note: Tighter stability, tolerance and lower ESR values are available. PART NUMBER GENERATION Part numbers for X42 crystals are generated as follows: 12.000MHz X42/20/30/-10+60/12pF/60RExample: Nominal Frequency Package Calibration tolerance at 25°C (±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)