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CX-2S-SM31.0C bảng dữ liệu(PDF) 1 Page - EUROQUARTZ limited |
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1 / 2 page CX-2-SM 760kHz to 1.35MHz LOW-PROFILE SMD CRYSTAL CX-2-SM 760kHz to 1.35MHz LOW-PROFILE SMD CRYSTAL General Description The miniature CX-2-SM quartz crystal is a high quality leadless device suitable for mounting on printed circuit boards or hybrid substrates. The CX-2-SM is hermetically sealed in a rugged, leadless ceramic package. The crystal has been designed for surface-mounting on printed circuit boards or hybrid circuits. The crystal is manufactured using a photo-lithographic process, yielding consistently high quality production parts. Extensional mode High shock resistance Designed for low-power applications Compatible with hybrid or PC board packaging Low ageing Full military environmental testing available Ideal for battery operated applications Specification LR C C 12 R L CC Mot ional Resistance Motional Capacitance Motional Inductance Shunt Capacitance Equivalent Circuit Solder Pad Layout Outline A BC H F D E (TOP) G I 3 2 1 Dimension 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 CX-2-SM Package Dimensions Typical (mm) Maximum (mm) Dimension “C” SM1 1.65 1.91 SM2 1.70 1.96 SM3 1.78 2.03 Glass Lid (mm max.) Ceramic Lid (mm max.) Terminal 1 is electrically connected to terminal 3 2.67 0.6 2.87 12 Frequency Range: Functional Mode: Calibration Tolerance*: Load Capacitance: Motional Resistance (R ): Motional Capacitance (C ): Quality Factor (Q): Shunt Capacitance (C ): Drive Level: Turning Point (T )**: 760kHz to 1.35MHz Extensional A ±0.05% (±500ppm) B ±0.1% C ±1.0% 7pF 5k max. 1.2fF 150k 1.0pF 3 W max. 35°C Note: Frequency (f) deviation from frequency (f ) @ turning point temperature (T ): W m 0 0 Temperature Coefficient: Ageing, first year: Shock, survival: Vibration, survival: Operating Temperature: Storage Temperature: Process Temperature: -0.035ppm/°C ±5ppm max. 1000g 0.3ms, ½ sine 10g rms, 20-1,000Hz 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. * Tighter frequency calibration available ** Other turning point available 2 f-fo fo = k(T-To) +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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