euroquartz limited blacknell lane crewkerne somerset uk ta18 7he tel: +44 (0)1460 230000 fax: +44 (0)1460 230001 info@euroquartz.co.uk www.euroquartz.co.uk euro quartz description the 'ht' range of crystals are designed for applications subjected to high operating temperatures. the cx1ht, cx4ht and cx9ht crystals operate up to 200c and feature an expected life in excess of 1000 hours at these temperatures. the frequency range is: cx1ht: 8.0mhz to 250mhz cx4vht: 14mhz to 250mhz cx9vht: 14mhz to 250mhz. outlines & dimensions features high temperature operation up to 200c high schock resistance hermetically sealed ceramic package high temperature crystals high temperature/high frequency 6 mhz to 250mhz cx1ht cx4ht cx9ht 14mhz ~ 250mhz dimensions a 8.38 5.33 4.32 b 3.94 2.16 1.73 c (sm1) 1.78 1.27 0.97 c (sm5) 1.90 1.35 1.02 d 1.40 1.16 0.97 e 1.78 0.51 f 1.78 0.64 cx1ht cx4ht cx9ht dim. applications downhole instrumentation rotary shaft sensors underground boring tools suggested soldering pattern 14mhz ~ 250mhz 8mhz ~ 250mhz
euroquartz limited blacknell lane crewkerne somerset uk ta18 7he tel: +44 (0)1460 230000 fax: +44 (0)1460 230001 info@euroquartz.co.uk www.euroquartz.co.uk euro quartz specification frequency range: see specifications table below calibration tolerance 1 : 100ppm or tighter as required operating temperature range: -55 to +200c temperature stability 2: 150ppm -55 to +150c 175ppm -55c to +175c 200ppm -55 to +200c ageing first year: 5ppm @25c shock, survival 3 : cx1ht: 1,000g, 1ms, ? sine cx4ht: 5,000g, 0.3ms, ? sine cx9ht: 5,000g, 0.3ms, ? sine vibration, survival 3 : 20g rms, 10~2000hz specifications stated are typical at 25c unless otherwise indicated. specifications may change without notice. 1. tighter frequency calibration available. contact euroquartz sales. 2. does not include calibration tolerance. the characteristics of frequency stability over temperature follow that of the thickness- shear mode. 3. higher shock and vibration available. packaging options cx_ht crystals are available either tray packed (<250pcs) or tape and reel (>250 pieces). 16mm tape, 178mm or 330mm reels (eia 418). crystal equivalent circuit r1 motional resistance l1 motional inductance c1 motional capacitance c0 shunt capacitance how to order cx1ht, cx4ht and cx9ht crystals cx4ht - s - sm1 - 20.0m ? / ? / 200 / h 's' if special, custom design. otherwise leave blank terminations sm1 = gold plated * sm2 = solder plated sm3 = solder dipped sm4 = solder plated * sm5 = solder dipped * * = lead free frequency m = mhz calibration tolerance @25c (in ppm) temp. range h = 25 to 200c s = customer specified frequency stability over temp. range (in ppm) high temperature crystals high temperature/high frequency 6 mhz to 250mhz conventional cmos pierce oscillator circuit frequency range motional resistance r1 @ 25c motional capacitance c1 @ 25c shunt capacitance c0 @ 25c quality factor q @ 25c load capacitance cl drive level cx1ht 8.0mhz to 250mhz 30 @ 10mhz 25 @ 32mhz 5.5ff @ 10.0mhz 6.2ff @ 32.0mhz 2.2pf @ 10.0mhz 2.3pf @ 32.0mhz 100k @ 10.0mhz 30k @ 32.0mhz 20pf for f <50mhz 10pf for f >50mhz 500w max. for f <50mhz 200w max. for f >50mhz cx4ht 14.0mhz to 250mhz 75 @ 10mhz 30 @ 32mhz 1.5ff @ 10.0mhz 2.5ff @ 32.0mhz 0.9pf @ 10.0mhz 1.1pf @ 32.0mhz 90k @ 10.0mhz 70k @ 32.0mhz 10pf 200w max. for f <50mhz 100w max. for f >50mhz cx9ht 14.0mhz to 250mhz 30 @ 10mhz 30 @ 32mhz 1.8ff @ 10.0mhz 2.1ff @ 32.0mhz 1.0pf @ 10.0mhz 1.0pf @ 32.0mhz 120k @ 10.0mhz 60k @ 32.0mhz 10pf 200w max. for f <50mhz 100w max. for f >50mhz specifications table cx1ht cx4ht cx9ht total frequency tolerance (in ppm) storage temperature: -55 to +200c maximum process temperature: 260c for 20 seconds absolute maximum ratings
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