euro quartz euroquartz limited blacknell lane crewkerne somerset uk ta18 7he tel: +44 (0)1460 230000 fax: +44 (0)1460 230001 sales@euroquartz.co.uk www.euroquartz.co.uk um-1 and um-5 crystals frequency range 1.0mhz to 200mhz high-precision crystal ideal for telecoms applications high quality resistance weld sealing suitable for reflow soldering outline & dimensions frequency range um-1 1.0mhz to 1.2mhz (sl-cut) 4.0mhz to 200mhz (at-cut) um-5 10mhz to 200mhz (at-cut) oscillation mode: see table calibration tolerance at 25oc sl-cut (<1.3mhz): from 50ppm at-cut (>4.0mhz): from 3ppm frequency tolerance sl-cut: from 100ppm -10 to +60c at-cut: from 3ppm 0 to +50c shunt capacitance (c0): 4pf typical, 7pf maximum load capacitance (cl): series or from 8pf to 32pf ( customer specified cl ) ageing: 2ppm maximum, 1st year, 1ppm per year thereafter. drive level: 100 watts typ., 500 watts max. crystal holder: resistance-weld hermetic seal supply format: bulk pack specification description um-1 and um-5 crystals are a long-established design, being widely used in telecommunications applications where their compact size and ease of producing to close tolerances makes them an ideal crystal. in addition to the standard packages a 'slimline' package is also available. 1.0 ~1.2 sl fund. 5k 4.0 ~ 4.9 at fund. 150 5.0 ~ 5.9 at fund. 120 6.0 ~ 6.9 at fund. 100 7.0 ~ 7.9 at fund. 90 8.0 ~ 8.9 at fund. 80 9.0 ~ 10.9 at fund. 60 11.0 ~ 12.9 at fund. 40 13.0 ~ 45.0 at fund. 25 50.1 ~ 100.0 at 3rd o. 40 80.0 ~ 200.0 at 5th o. 80 frequency range mhz crystal cut osc. mode esr ohms max. esr and oscillation mode part number generation part numbers for um-1 crystals are generated as follows: 16.00mhz um-1/20/30/-10+60/18pf/60r example: nominal frequency package um-1 or um-5 calibration tolerance at 25c (ppm) temperature stability over temp. range (ppm) operating temp. range (c) (lower and upper limits) load capacitance (sr for series or cl in pf) equivalent series resistance (optional - use when special value is required) a three lead (centre earth lead) package is available with the designation um-1-3l
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