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SMT: differences and advantages compared to THT

Whenever possible, we used SMT (Surface Mounting Technology) because this technology allows you tu use components that have parasitic elements with very low values, due to the absence of leads, the very small size and the fact there is almost no reactive parameters (inductances and stray capacitance).
These parasitic elements, which are almost always counterproductive, are present in THT (Through-Hole Technology).

Another additional factor that improves the SMD components (Surface Mounting Device) is the reduction of the length of the connecting tracks. This means a reduction of the effect of inductive coupling and a reduction of electrical connections between adjacent circuits.

The use of SMD components requires automated assembly: this typically provides precision and repeatability to the behaviour of the circuit and, no less importantly, allows for cost reduction for both the components and the mounting.