Walsin's WA04P series chip attenuators are designed to satisfy most radio frequency applications for wireless devices, such as mobile phones, tablets, and laptops. With attenuation values ranging from 0 dB to 20 dB and frequency ranges from DC to 3 GHz, miniaturized in size (1.0 mm x 1.0 mm), and highly reliable, the WA04P series may be applied to high speed and frequency circuits, i.e. GSM 2G / 3G / 4G LTE.  The WA04P has characteristic impedance of 50 Ω and maximum working frequencies up to 3 GHz.

Having adopted π type attenuator circuit design, the Walsin chip attenuator is more convenient to layout with better electrical specification because of the symmetrical structure to the I/O port.