The objective of this work is the electrical characterization of the 1N4148 signal
diode. For the present work, bibliographic research was used on the functioning of
the component, a conventional workbench was set up in the laboratory of Industry II
of the IFAM-CMDI, the voltage and current data of the component will be collected in
the circuit mounted on a protoboard, in the Excel program it will be After plotting the
XY dispersion graph of the characteristic curve of the voltage versus current of the
1N4148 signal diode, the Multisim program will simulate the circuit and the
characteristic curve of the component to be compared with the data collected on the
conventional bench and from the Datasheet of the 1N4148 signal diode . The results
of the electrical measurements obtained in the practical experiment in the laboratory
were quite satisfactory, as observed in the graphs of the characteristic curve of the
component, the values are close to the Datasheet supplied by the manufacturer and
the values obtained in simulations in the Multisim program. With the development of
the work we also managed to improve the knowledge about the operation, electrical
characteristics and applications of diodes. The work can be used by technical and
higher level students, facilitating their learning in surveying the characteristic curves
of the signal diode, through the conventional workbench and the Multisim and Excel
programs.
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