49MJ EUROQUARTZ | Alldatasheet
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Technical content
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE SURFACE-MOUNT CRYSTALS Frequency Range: 1.0MHz to 200MHz Oscillation Mode: See table Calibration Tolerance at 25ºC SL-Cut (<1.3MHz): from ±50ppm AT-Cut (>1.3MHz): from ±3ppm Frequency stability over temp SL-Cut (<1.3MHz): from ±100ppm -10° to +60°C AT-Cut (>1.3MHz): from ±3ppm 0° to +50°C See table for details Shunt Capacitance (C0): 4pF typical, 7pF maximum Load Capacitance (CL): Series or from 8pF to 32pF (Customer to specify CL) Ageing: ±3ppm max 1st year, ±1ppm max per year after Drive level: 1mW maximum Holder: Resistance-weld, hermetic seal Holder Variants: H49MJ or 49TMJ (See outline drawing) Supply format: Bulk pack (standard) or tape (Ammo-Pak)
- Surface mount version of HC49
- Available with close tolerances
- Fully customisable for application requirements
- Customised parts readily available
- Industry-standard package
- Low installed cost 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 close- tolerance crystal parameters achievable by the use of circular AT-Cut crystal blanks in the HC49 crystal.
FEATURES
1.0 ~ 1.3 SL 5000 2.01~3.0 AT Fund. 400 3.01~3.2 AT Fund. 200 3.21~3.5 AT Fund. 150 3.51~3.9 AT Fund. 120 3.91~5.0 AT Fund. 100 5.01~7.0 AT Fund. 50 7.01~10.0 AT Fund. 35 10.0~30.0 AT Fund. 25 30.01~45.0 AT Fund. 20 24.0~100 AT 3rd OT 40 80.0~160 AT 5th OT 70 110~200 AT 7th OT 120 Frequency (MHz) Crystal Cut Oscillation Mode ESR (max) (Ohms) OSCILLATION MODE & ESR OUTLINES AND DIMENSIONS Operating Temp. °C Temperature Stability (ppm) FREQUENCY STABILITY OVER TEMPERATURE 0° to +50° ü ü ü ü ü ü ü -10° to +60° ü ü ü ü ü ü ü -20° to +70° X ü ü ü ü ü ü -30° to +80° X X X ü ü ü ü -40° to +90° X X X X ü ü ü -55° to +105° X X X X X ü ü 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)