Telecoms, Datacoms, Wireless, IoT


Crystals for comms applications

9 June 2010 Telecoms, Datacoms, Wireless, IoT

Euroquartz has launched a new range of slimline crystals designed for use in handheld and portable communications applications.

Available on short lead times and manufactured in the UK, the new UM-1SL crystals are optimised 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. The slimline crystals are housed in a resistance weld, hermetically sealed, low profile, low mass UM style package measuring 7 x 8 x 1,8 mm. A wide frequency range is available from 8 to 40 MHz in fundamental mode and up to 260 MHz in overtone mode.

Specifications include calibration tolerance at 25°C of ±3 ppm, frequency stability over temperature from ±2,5 ppm (-10 to +60°C) to ±20 ppm (-5 to +105°C), shunt capacitance of 4 pF typical (7 pF maximum), equivalent series resistance from 25 to 80 Ω depending on frequency, maximum drive level of 100 W and ageing of ±2 ppm maximum for first year (±1 ppm maximum per year thereafter). Load capacitance is from 8 to 32 pF or can be specified by the customer. Supplied bulk-packed, the new crystals are available for operation over a variety of temperature ranges encompassing 0 to 50°C to -55 to +105°C.

For more information contact Jeva Narian, Arrow Altech Distribution, +27 (0)11 923 9600, jnarian@arrow.altech.co.za, www.arrow.altech.co.za



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