CX4SMAT EUROQUARTZ | Alldatasheet
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Technical content
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE EURO QUARTZ CX4SM AT CRYSTAL Ultra-Miniature SMD AT-Cut Crystal 14MHz to 250MHz
DESCRIPTION
CX4SM AT crystals provide a reliable and rugged source of high frequencies in an ultra-miniature package. 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 SPECIFICATION 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 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). 1. Other tolerances available; contact Euroquartz sales. 2. Does not include calibration tolerance. Frequency stability characteristics follow that of the AT thickness-shear mode. 3. ±5ppm max. for frequencies below 40MHz. For tighter tolerances contact Euroquartz sales. 4. Higher shock verion available. 5. Per MIL-STD-202G, Method 204D, Condition D. Random Random testing also available. HOW TO ORDER CX4SM AT CRYSTALS CX4 - 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 @25°C (in ppm)* Temp. Range C = -10° ~ +70°C I = -40° ~ +85°C M = -55° ~ +125°C S = Customer specified OUTLINE & DIMENSIONS
FEATURES
Fundamental Frequency 14.745MHz 16MHz 20MHz 32MHz 40MHz 80MHz 160MHz 200MHz Motional Resistance R1 (Ω): 60 75 50 30 30 30 30 40 Quality Factor Q (k): 120 90 110 70 90 40 20 15 FREQUENCY-DEPENDENT SPECIFICATION TABLE Frequency Stability over temperature (in ppm)* *Alternative 'total' tolerance (in ppm) SM1 1.14 1.27 SM2 1.17 1.30 SM3 1.22 1.35 SM4 1.17 1.30 SM5 1.22 1.35 Glass Lid Ceramic LidDim. H TERMINATIONS - PLATING SM1 Gold Plated (Lead Free) SM2 Solder Plated SM3 Solder Dipped SM4 Solder Plated (Lead Free) SM5 Solder Dipped (Lead Free) Designation Termination