TT Electronics 2621 is a miniature, shielded, surface mount, axial-leaded, radial-lead, feed-through filter. It is a passive RF component featuring an attenuation range of 3 to 100dB, a maximum insertion loss of 0.2dB, and a maximum frequency of 12GHz. The filters are also known for their low-inductance, low-capacitance, and low-loss characteristics. The small size, high performance, and low-cost make this filter ideal for use in high-density circuits, such as cellular networks, wireless applications, and microwave circuits.