A torsional vibration damper for a drivetrain of a motor vehicle having a substantially discoidal centrifugal flange and a plurality of centrifugal pendulum-type absorbers. At the lower frequencies the ferrite material introduces a minimal loss of 2 to 3 dB, whereas at the higher frequency range very little current passes through the meander line thus eliminating any effect of the ferrite on antenna performance. Furthermore, metal foil pieces formed on front and rear surfaces of the printed circuit board with metal pins respectively so as to face each other, are disposed above the semiconductor chips. The disruptive layer also includes explosive material surrounding the geometric shapes and a layer of explosive material on top of the geometric shapes.