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1 / 2 page CX-3V-SM 18kHz to 600kHz MINIATURE SMD CRYSTAL CX-3V-SM 18kHz to 600kHz MINIATURE SMD CRYSTAL General Description The miniature CX-3V-SM crystals are leadless devices designed for surface-mounting on printed circuit boards or hybrid substrates. These crystals are intended for use in Pierce oscillators. Hermetically sealed in a rugged, miniature ceramic package the crystals are produced using a photo-lithographic process giving repeatability and consistency. Outline Miniature tuning fork design High shock resistance Designed for low power applications Compatible with hybrid or PCB mounting Low ageing Full military environmental testing available Ideal for battery operated applications Specification Dimension A 6.73 7.11 B 2.62 2.90 C - see below D 1.27 1.52 E 1.32 1.57 CX-3V-SM Package Dimensions Typical (mm) Maximum (mm) Dimension “C” SM1 1.47 1.75 SM2 1.52 1.80 SM3 1.60 1.88 Glass Lid (mm max.) Ceramic Lid (mm max.) 1 LR C C 0 1 1 12 R 1 L 1 1 CC0 Mot ional Resistance Motional Capacitance Motional Inductance Shunt Capacitance Equivalent Circuit Frequency Range: Functional Mode: Calibration Tolerance*: Motional Resistance (R ): Motional Capacitance (C ): Quality Factor (Q): Shunt Capacitance (C ): Drive Level: Turning Point (T )**: Temperature Coefficient: Ageing, first year: Shock***: Vibration, survival: Operating Temperature: Storage Temperature: Max. Process Temperature: 18kHz to 600kHz Tuning Fork (Flexure) A, B, or C (see below) See Figure 1 Max: 18-25kHz, 2 x typ. 25-600kHz, 2.5 x typ. See Figure 2 See Figure 3 min. is 0.25 x typ. 1.8pF max. 18-25kHz 0.5 W max. 25-600kHz 1.0 W max. See Figure 4 -0.035ppm/°C ±5ppm max. 1,500g peak, 0.3ms, ½ sine 10g rms 20-2,000Hz random -10°~+70°C (commercial) -40°~+85°C (industrial) -55°~+125°C (military) -55°C~+125°C 260°C for 20 seconds Specifications are typical at 25°C unless otherwise indicated. * Closer frequency calibration available ** Other turning point available *** A higher shock and vibration version is available. µ µ A B C D D D E (TOP) Calibration Frequency Range (kHz) A ±0.003% ±0.005% ±0.01% ±0.02% B ±0.01% ±0.01% ±0.02% ±0.05% C ±0.1% ±0.1% ±0.2% ±0.5% CX-3V Crystal Calibration Tolerance at 25°C 18~74.9 75~169.9 170~249.9 250~600 +44(0)1460 230000 +44(0)1460 230001 sales@euroquartz.co.uk www.euroquartz.co.uk Telephone: Fax: Email: Web: EUROQUARTZ CX MINIATURE CRYSTALS Page 1of2 |
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