UM-1

EURO QUARTZ Frequency range 1.0MHz to 200MHz High-precision crystal ideal for telecoms applications High quality resistance weld sealing Suitable for reflow soldering UM-1 and UM-5 Crystals OUTLINE & DIMENSIONS DESCRIPTION Um-1 and UM-5 crystals are a long-established design, being widely used in telecommunications applications where their compact size and ease of producing to close tolerances makes them an ideal crystal. In addition to the standard packages a 'Slimline' package is also available. SPECIFICATION Frequency Range UM-1 UM-5 Oscillation Mode: Calibration Tolerance at 25ºC SL-Cut (4.0MHz): Frequency Tolerance SL-Cut: AT-Cut: Shunt Capacitance (C0): Load Capacitance (CL): Ageing: Drive Level: Crystal Holder: Supply format: 1.0MHz to 1.2MHz (SL-Cut) 4.0MHz to 200MHz (AT-Cut) 10MHz to 200MHz (AT-Cut) See table from ±50ppm from ±3ppm from ±100ppm -10° to +60°C from ±3ppm 0° to +50°C 4pF typical, 7pF maximum Series or from 8pF to 32pF (Customer specified CL) ±2ppm maximum, 1st year, ±1ppm per year thereafter. 100 Watts typ., 500 Watts max. Resistance-weld hermetic seal Bulk pack PART NUMBER GENERATION Part numbers for UM-1 crystals are generated as follows: Example: A three lead (centre earth lead) package is available with the designation UM-1-3L 16.00MHz UM-1/20/30/-10+60/18pF/60R Nominal Frequency Package UM-1 or UM-5 Calibration tolerance at 25°C (±ppm) Temperature Stability over temp. range (±ppm) Operating Temp. Range (°C) (Lower and upper limits) Load Capacitance (SR for series or CL in pF) Equivalent Series Resistance (Optional - use when special value is required) ESR and OSCILLATION MODE Frequency Range MHz 1.0 ~1.2 4.0 ~ 4.9 5.0 ~ 5.9 6.0 ~ 6.9 7.0 ~ 7.9 8.0 ~ 8.9 9.0 ~ 10.9 11.0 ~ 12.9 13.0 ~ 45.0 50.1 ~ 100.0 80.0 ~ 200.0 Crystal Cut ESR Osc. Mode Ohms Max. SL Fund. AT Fund. AT Fund. AT Fund. AT Fund. AT Fund. AT Fund. AT Fund. AT Fund. AT 3rd o. AT 5th o. 5k 150 120 100 90 80 60 40 25 40 80 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