16.00049MJ10201030-AT7

SURFACE-MOUNT CRYSTALS 49MJ CRYSTALS Surface-mount HC49 DESCRIPTION 49MJ crystals are standard HC49 crystals with formed leads, fitted with a clip to enable surface-mount PCB assembly. The crystal therefore offers the ease of surface-mount assembly with the technical benefit of closetolerance crystal parameters achievable by the use of circular AT-Cut crystal blanks in the HC49 crystal. OUTLINES AND DIMENSIONS FEATURES · · · · · · Surface mount version of HC49 Available with close tolerances Fully customisable for application requirements Customised parts readily available Industry-standard package Low installed cost GENERAL SPECIFICATION Frequency Range: Oscillation Mode: Calibration Tolerance at 25ºC SL-Cut (1.3MHz): Frequency stability over temp SL-Cut (1.3MHz): Shunt Capacitance (C0): Load Capacitance (CL): Ageing: Drive level: Holder: Holder Variants: Supply format: 1.0MHz to 200MHz See table from ±50ppm from ±3ppm from ±100ppm -10° to +60°C from ±3ppm 0° to +50°C See table for details 4pF typical, 7pF maximum Series or from 8pF to 32pF (Customer to specify CL) ±3ppm max 1st year, ±1ppm max per year after 1mW maximum Resistance-weld, hermetic seal H49MJ or 49TMJ (See outline drawing) Bulk pack (standard) or tape (Ammo-Pak) FREQUENCY STABILITY OVER TEMPERATURE Operating Temp. °C 0° to +50° -10° to +60° -20° to +70° -30° to +80° -40° to +90° -55° to +105° Temperature Stability (ppm) ±3 ü ü X X X X ±5 ü ü ü X X X ±7.5 ü ü ü X X X ±10 ü ü ü ü X X ±15 ü ü ü ü ü X ±20 ü ü ü ü ü ü ±30 ü ü ü ü ü ü OSCILLATION MODE & ESR Frequency (MHz) 1.0 ~ 1.3 2.01~3.0 3.01~3.2 3.21~3.5 3.51~3.9 3.91~5.0 5.01~7.0 7.01~10.0 10.0~30.0 30.01~45.0 24.0~100 80.0~160 110~200 Crystal Cut Oscillation Mode SL AT Fund. AT Fund. AT Fund. AT Fund. AT Fund. AT Fund. AT Fund. AT Fund. AT Fund. AT 3rd OT AT 5th OT AT 7th OT ESR (max) (Ohms) 5000 400 200 150 120 100 50 35 25 20 40 70 120 PART NUMBER GENERATION 49MJ crystals part numbers are derived as follows: Example: 16.000MHz 49MJ/10/20/10/30pF/ATF Frequency Package - 49MJ - 49TMJ Calibration Tolerance at 25°C (in ±ppm) Temperature Stability (in ±ppm) Operating Temperature Range (lower figure of temperature range) Circuit Condition (CL in pF or SERIES) Mode - SLF (SL-Cut, fund.) - ATF (AT-Cut, fund.) - AT3 (AT-Cut, 3rd overtone) - AT5 (AT-Cut, 5th overtone) - AT7 (AT-Cut, 7th overtone) EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE Tel: +44 1460 230000 Fax: +44 1460 230001 email: info@euroquartz.co.uk web: www.euroquartz.co.uk