EURO QUARTZ CX4SM AT CRYSTAL Ultra-Miniature SMD AT-Cut Crystal 14MHz to 250MHz FEATURES Ultra-miniature, low profile (>1.2mm) ceramic package Available with glass or cermic lid Excellent ageing characteristics High shock and vibration resistance Full military testing available OUTLINE & DIMENSIONS DESCRIPTION CX4SM AT crystals provide a reliable and rugged source of high frequencies in an ultra-miniature package. SPECIFICATION Specifications stated are typical at 25°C unless otherwise indicated. Specifications may change without notice. Standard Calibration Tolerance1: ±100ppm, or tighter as required Load Capacitance: 10pF Drive Level: 200µW max. for Fr. <50MHz 100µW max. for Fr. >50MHz Frequency Stability1,3 -10° to +70°C: ±50ppm to ±10ppm -40° to +85°C: ±100ppm to ±20ppm -55° to +125°C: ±100ppm to ±30ppm Ageing First Year3: ±5ppm max. (Better than ±1ppm available) Shock, Survival4: 5000g, 0.3ms, ½ sine Vibration, Survival5: 10g rms, 10~2000Hz swept sine Operating Temperature Range: -10°C to +70°C (Commercial) -40°C to +85°C (Industrial) -55°C to +125°C (Military) Storage Temperature Range: -55° to +125°C Maximum Process Temperature: +260°C for 20 seconds 1. 2. 3. 4. 5. Dim. H Glass Lid Ceramic Lid SM1 SM2 SM3 SM4 SM5 1.14 1.17 1.22 1.17 1.22 1.27 1.30 1.35 1.30 1.35 PACKAGING OPTIONS CX4SM AT crystals are available either tray packed (<250pcs) or tape and reel (>250 pieces). 16mm tape, 178mm or 330mm reels (EIA 418). TERMINATIONS - PLATING Designation SM1 SM2 SM3 SM4 SM5 Other tolerances available; contact Euroquartz sales. Does not include calibration tolerance. Frequency stability characteristics follow that of the AT thickness-shear mode. ±5ppm max. for frequencies below 40MHz. For tighter tolerances contact Euroquartz sales. Higher shock verion available. Per MIL-STD-202G, Method 204D, Condition D. Random Random testing also available. Termination Gold Plated (Lead Free) Solder Plated Solder Dipped Solder Plated (Lead Free) Solder Dipped (Lead Free) FREQUENCY-DEPENDENT SPECIFICATION TABLE Fundamental Frequency 14.745MHz 16MHz 20MHz 32MHz 40MHz 80MHz 160MHz 200MHz Motional Resistance R1 (Ω): 60 75 50 30 30 30 30 40 Motional Capacitance C1 (Ff): 1.4 1.5 1.4 2.5 1.5 1.8 2.5 2.0 Quality Factor Q (k): 120 90 110 70 90 40 20 15 Shunt Capacitance (C0 (pF): 0.8 0.9 0.9 1.1 1.0 1.0 1.5 1.5 HOW TO ORDER CX4SM AT CRYSTALS CX4 - S 'S' if special, custom design. Otherwise leave blank - C Blank = glass lid C = ceramic lid - SM1 - Terminations SM1 = Gold plated * SM2 = Solder plated SM3 = Solder dipped SM4 = Solder plated * SM5 = Solder dipped * * = Lead free 32.0M, Frequency M = MHz 100 / 100 Frequency Calibration Tolerance Stability over temperature @25°C (in ppm)* (in ppm)* – / I Temp. Range C = -10° ~ +70°C I = -40° ~ +85°C M = -55° ~ +125°C S = Customer specified *Alternative 'total' tolerance (in ppm) EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 [email protected] www.euroquartz.co.uk