Product Overview The BPF-C670+ is a band pass filter fabricated using SMT technology and built into a shielded case (size of 0.87″ x 0.80″ x .25″). Covering 670 MHz ± 200 MHz band width, this model is suited for Digital TV application. These units offer good matching within the passband and high rejection. This unit uses a miniature high Q capacitors and wire welded inductors for high reliability. In addition it has repeatable performance across production lots and consistent performance across temperature.