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| EURO QUARTZ Low-cost, industry-standard crystal unit AT-Cut strip crystal with hermetically sealed can Frequency range 1.0MHz to 70MHz Package height options available DESCRIPTION HC49-4H and HC49-4HL Crystals HC49-4H crystals share the same base outline as the industrystandard HC49 crystal. The crystal uses at AT-cut strip crystal with an hermetically sealed can. HC49-4H crystals provide a low cost source of system clock frequency. SPECIFICATION Frequency Range: Oscillation Mode AT-Cut Fundamental: BT-Cut Fundamental: AT-Cut 3rd Overtone: Calibration Tolerance at 25C AT-Cut: BT-Cut: Frequency Stability AT-Cut: BT-Cut: Load Capacitance (CL): Ageing at 25C: Drive Level: Storage Temperature Range: Crystal Holder: RoHS Status: Supply format: 3.2MHz to 70.0MHz 3.2MHz to 30.0MHz 24.0MHz to 48.0MHz 27.0MHz to 70.0MHz 30ppm (tolerance to 10ppm is available.) 30ppm 30ppm over -10 to +60C (Stability to 10ppm is available) 100ppm pver -10 to +60C Series or from 8pF to 32pF 3ppm maximum, 1st year, 1ppm per year thereafter. 100mWatts typ., 500mWatts max. -50 to +105C Resistance-weld hermetic seal Compliant Bulk pack (Radial tape and reel is available) ESR and OSCILLATION MODE Frequency Range MHz 3.2 ~ 3.4 3.5 ~ 6.0 6.1 ~ 10.0 10.1 ~ 30.0 24.0 ~ 48.0 27.0 ~ 30.0 30.1 ~ 50.0 50.1 ~ 70.0 Crystal Cut ESR Osc. Mode Ohms Max. AT-Fund AT-Fund AT-Fund AT-Fund BT-Fund AT-3rd OT AT-3rd OT AT-3rd OT 300 120 60 40 40 150 100 80 PART NUMBER GENERATION Part numbers for HC49-4H crystals are generated as follows: Example: 8.000MHz HC49-4H/30/50/-20+70/30pF/30R Frequency / holder /calibration tolerance /stability over op. temp. /op. temp. range / circuit condition /ESR or operating mode EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 sales@euroquartz.co.uk www.euroquartz.co.uk |
Price & Availability of HC49-4H
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