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| GENERAL PRODUCT SPECIFICATION QUARTZ CRYSTALS HFF CRYSTALS HIGH-FREQUENCY FUNDAMENTAL QUARTZ CRYSTALS EUROQUARTZ Telephone: Fax: Web: +44 (0)1460 230000 +44 (0)1460 230001 www.euroquartz.co.uk Email: sales@euroquartz.co.uk General Specification Frequency range: Mode: Holder: Sealing Method: Frequency adjustment at 25C: 35.0MHz to 160MHz . AT-Cut Fundamental UM-1 Resistance weld. 20ppm (Standard) 10, 30, 50ppm (Option) *Fundamental Frequency 35MHz to 160MHz *Low ESR from 15 *Ideal for low-noise oscillators Frequency Range ESR 9 Mode/Cut Frequency stability over temp.: Operating Temperature Range: From 20ppm over -20 to +70C 0 ~ +70248 (Standard) -20 to +70, -40 to +85C (Option) 35.0MHz to 50.0MHz 50.0MHz to 100.0MHz 100.0MHz to 160.0MHz 15 max. 20 max. 25 max. Fundamental AT Fundamental AT Fundamental AT Storage Temperature Range: Shunt Capacitance: Insulation Resistance: Drive Level: Motional Capacitance (C1): Load Capacitance (CL): C0/C1 Ratio: Ageing: -55 to +125C 5pF maximum 500M 100 W maximum 2fF to 15fF 18pF (Standard) Series Resonant or >10pF Customer specified 3ppm/year Specify frequency, Style (HFF), stability and operating temperature range code (table below), circuit condition. To assist ordering and reordering a unique part number can be allocated for customer designs. m W min. at 100VDC To order Code Tolerance @ 25C Temperature Stability Operating Temp. Range Actual Size 8.0 12.7 (min.) 3.75 O0.35 Blank A B C D E F G 50ppm 50ppm 50ppm 30ppm 30ppm 20ppm 20ppm 10ppm 100ppm 100ppm 100ppm 50ppm 50ppm 30ppm 30ppm 20ppm 0 to +70C -20 to +70C -40 to +85C 0 to +70C -20 to +70C 0 to +85C -20 to +70C -20 to +70C 3.2 7.8 Outline and Dimensions Custom crystal service Due to the custom-designed nature of High Frequency Fundamental (HFF) crystals, Euroquartz produce HFF crystals to customer s specifications. There is a short lead time from design to production for these parts. Contact Euroquartz application engineers to discuss your requirements. |
Price & Availability of HFF
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