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 cx2sm at crystals in leadless ceramic packages are designed for surface mounting on pcb or hybrid substrates. the small footprint, low profile crystal is ideal for a wide range of commercial, industrial, medical and defence/aerospace applications. outline & dimensions features designed for surface mount applications, including infrared, vapour phase or epoxy mount techniques hermetically sealed ceramic package excellent ageing characteristics available with glass or ceramic lid higjh shock and vibration resistance custom designs available full military testing available packaging options cx2sm at crystals are available either tray packed (<250pcs) or tape and reel (>250 pieces). 16mm tape, 178mm or 330mm reels (eia 418). cx2sm at crystal low profile miniature smd crystal 9.6mhz to 250mhz a 6.60 6.99 b 2.39 2.74 c see below d 0.89 1.14 e 1.50 1.75 f 1.27 1.52 g 2.67 2.92 h 3.94 4.19 i 5.33 5.59 typ. max. dim. sm1 1.65 1.91 sm2 1.70 1.96 sm3 1.78 2.03 sm4 1.70 1.96 sm5 1.78 2.03 glass lid ceramic lid dim. c how to order cx2sm at crystals cx2 - s - c - sm1 - 32.0m , 100 / 100 / - / i 's' if special, custom design. otherwise leave blank blank = glass lid c = ceramic lid 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 c = -10 ~ +70c i = -40 ~ +85c m = -55 ~ +125c s = customer specified frequency stability over temp. range (in ppm) crystal equivalent circuit r1 motional resistance l1 motional inductance c1 motional capacitance c0 shunt capacitance specification fundamental frequency: 10.0mhz 32.0mhz 155.52mhz motional resistance r (): 60 25 10 motional capacitance c1 (ff): 2.8 6.2 4.0 qualityfactor q (k): 95 30 30 shunt capacitance c0 (pf): 1.4 2.3 2.3 calibration tolerance 1 : 100ppm or tighter as required load capacitance 2 : 20pf for fr. <50mhz 10pf for fr. >50mhz drive level: 500w max. for fr. <50mhz 200w max. for fr. <50mhz temperature stability 3 commercial -10 ~ +60c: 50ppm to 10ppm industrial -40 to +85c: 100ppm to 20ppm military -55 to +125c: 100ppm to 30ppm ageing, first year 4 : 5ppm max. better than 1ppm is available shock, survival 5 : 3,000g, 0.3ms, ? sine vibration, survival 6 : 20g, 10~2000hz swept sine operating temperature range commercial: -10 to +70c industrial: -40 to +85c military: -55 to +125c storage temperature range: -55 to +125c maximum process temperature: +260c for 20 seconds specifications stated are typical at 25c unless otherwise indicated. specifications may change without notice. 1. other tolerances available, contact euroquartz sales. 2. unless specified otherwise. 3. does not include calibration tolerance. the characteristicsof the frequency stability over temperature follow that of the at thickness- shear mode. 4. 5ppm max. for frequencies below 40mhz for tighter tolerances and higher frequencies contact euroquartz sales. 5. higher shock version available. see cx1hgsm 6. per mil-std-202g, method 204d, condition d. random vibration testing also available.
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