EUROQUARTZ GENERAL PRODUCT SPECIFICATION QUARTZ CRYSTALS Telephone: +44 (0)1460 230000 Fax: +44 (0)1460 230001 Email: [email protected] HFF CRYSTALS Web: HIGH-FREQUENCY FUNDAMENTAL QUARTZ CRYSTALS •Fundamental Frequency 35MHz to 160MHz •Low ESR from 15Ω •Ideal for low-noise oscillators General Specification Frequency range: 35.0MHz to 160MHz . Mode: AT-Cut Fundamental Holder: UM-1 Sealing Method: Resistance weld. Frequency adjustment at 25ºC: ±20ppm (Standard) ±10, ±30, ±50ppm (Option) Frequency stability over temp.: From ±20ppm over -20° to +70°C Operating Temperature Range: www.euroquartz.co.uk 0° ~ +70248 (Standard) -20° to +70°, -40° to +85°C (Option) Frequency Range ESR 35.0MHz to 50.0MHz 50.0MHz to 100.0MHz 100.0MHz to 160.0MHz W Mode/Cut 15 max. 20 max. 25 max. Fundamental AT Fundamental AT Fundamental AT Storage Temperature Range: -55° to +125°C Shunt Capacitance: 5pF maximum Insulation Resistance: 500M Drive Level: 100 W maximum Motional Capacitance (C1): 2fF to 15fF Specify frequency, Style (HFF), stability and operating temperature Load Capacitance (CL): 18pF (Standard) range code (table below), circuit condition. Series Resonant or >10pF To assist ordering and reordering a unique part number can be C0/C1 Ratio: Customer specified allocated for customer designs. Ageing: ±3ppm/year m W To order min. at 100VDC Code Actual Size 8.0 12.7 (min.) 3.75 Ø0.35 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. Blank A B C D E F G Tolerance @ 25°C ±50ppm ±50ppm ±50ppm ±30ppm ±30ppm ±20ppm ±20ppm ±10ppm Temperature Operating Temp. Stability Range ±100ppm ±100ppm ±100ppm ±50ppm ±50ppm ±30ppm ±30ppm ±20ppm 0° to +70°C -20° to +70°C -40° to +85°C 0° to +70°C -20° to +70°C 0° to +85°C -20° to +70°C -20° to +70°C