Microminiature crystals

10 August 2010

Euroquartz’s ultra-miniature AT-cut crystals cover the frequency range 16-60MHz in fundamental mode
Euroquartz’s ultra-miniature AT-cut crystals cover the frequency range 16-60MHz in fundamental mode

Euroquartz’s ultra-miniature AT-cut crystals cover the frequency range 16-60MHz in fundamental mode.

The new X22 crystals are housed in a microminiature 2.5mm x 2.0mm x 0.6mm surface mount package, making them ideal for use in miniaturised hand-held equipment such as PDAs, GPS, PCMCIA and similar high density applications where space is at a premium.

Offering very low ageing of less than ±2ppm per year at 25°C, specifications include calibration tolerance of 25°C of ±10ppm, ±20ppm and ±30ppm and frequency stability of ±10ppm from -10°C to +60°C (±5ppm available), ±10ppm from -20°C to +70°C and ±15ppm from -40°C to +85°C.

Drive level is 50 to 100μW maximum while shunt capacitance is 2 to 4pF typical; 5pF maximum with load capacitance series or from 9 to 32pF. Storage temperature range is -50°C to +105°C.

Supplied on standard EIA tape and reel, the new X22 crystals are capable of withstanding reflow soldering conditions of 260°C for 10s maximum (twice) or 230°C for 180s once.

Euroquartz designs and manufactures a range of frequency control components for a range of customers including major OEMs in a broad spectrum of applications including military and aerospace, communications, general electronics, computing, control systems and petrochemical.


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