UM1 EUROQUARTZ | Alldatasheet
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Technical content
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE EURO QUARTZ UM-1 and UM-5 Crystals Frequency range 1.0MHz to 200MHz High-precision crystal ideal for telecoms applications High quality resistance weld sealing Suitable for reflow soldering OUTLINE & DIMENSIONS Frequency Range UM-1 1.0MHz to 1.2MHz (SL-Cut) 4.0MHz to 200MHz (AT-Cut) UM-5 10MHz to 200MHz (AT-Cut) Oscillation Mode: See table Calibration Tolerance at 25ºC SL-Cut (<1.3MHz): from ±50ppm AT-Cut (>4.0MHz): from ±3ppm Frequency Tolerance SL-Cut: from ±100ppm -10° to +60°C AT-Cut: from ±3ppm 0° to +50°C Shunt Capacitance (C0): 4pF typical, 7pF maximum Load Capacitance (CL): Series or from 8pF to 32pF ( Customer specified CL) Ageing: ±2ppm maximum, 1st year, ±1ppm per year thereafter. Drive Level: 100 mWatts typ., 500mWatts max. Crystal Holder: Resistance-weld hermetic seal Supply format: Bulk pack SPECIFICATION
DESCRIPTION
Um-1 and UM-5 crystals are a long-established design, widely used in telecommunications applications where their compact size and ease of production to close tolerances makes them an efficient source of frequency conntrol. In addition to the standard packages a 'Slimline' package is also available. 1.0 ~1.2 SL Fund. 5k 4.0 ~ 4.9 AT Fund. 150 5.0 ~ 5.9 AT Fund. 120 6.0 ~ 6.9 AT Fund. 100 7.0 ~ 7.9 AT Fund. 90 8.0 ~ 8.9 AT Fund. 80 9.0 ~ 10.9 AT Fund. 60 11.0 ~ 12.9 AT Fund. 40 13.0 ~ 45.0 AT Fund. 25 50.1 ~ 100.0 AT 3rd ot 40 80.0 ~ 200.0 AT 5th ot 80 Frequency Range MHz Crystal Cut Osc. Mode ESR Ω Max. ESR and OSCILLATION MODE (Data for UM-1 shown) PART NUMBER GENERATION Part numbers for UM-1 crystals are generated as follows: 16.00MHz UM-1/20/30/-10+60/18pF/60RExample: 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) A three lead (centre earth lead) package is available with the designation UM-1-3L