EURO EUROQUARTZ UM-1 and UM-5 Crystals General specification for 'UM' family crystals Frequency range 1.0MHz to 200MHz High-precision crystal ideal for telecoms applications High quality resistance weld sealing Suitable for reflow soldering DESCRIPTION OUTLINE & DIMENSIONS 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 (<1.3MHz): AT-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) 8.0MHz to 200MHz (AT-Cut) 12MHz 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 ( ) ±2ppm maximum, 1st year, ±1ppm per year thereafter. 100mW typical, 500mW maximum Resistance-weld hermetic seal Bulk pack PART NUMBER GENERATION Part numbers for UM-1 crystals are generated as follows: Example: 16.00MHz UM-1/20/30/-10+60/18pF/60R A three lead (centre earth lead) package is available with the designation UM-1-3L Nominal Frequency Package UM-1 or UM-5 Calibration tolerance at 25°C (±ppm) Temperature Stability over temp. range (±ppm) Operating Temp. Range (°C) Load Capacitance Equivalent Series Resistance ESR and OSCILLATION MODE Frequency Range MHz Crystal Cut Osc. Mode 1.0 ~1.2 8.0 ~ 8.9 9.0 ~ 10.9 11.0 ~ 12.9 13.0 ~ 45.0 50.1 ~ 100.0 80.0 ~ 200.0 SL Fund. AT Fund. AT Fund. AT Fund. AT Fund. AT 3rd OT AT 5th OT EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 [email protected] ESR Ω Max. 5k 80 60 40 25 40 80 www.euroquartz.co.uk