ATC 3-Sided Wraparound Chip Attenuators Vishay / Barry Industries ATC 3-Sided Wraparound Chip Attenuators offer 1dB to 10dB attenuation (typical), up to DC to 5GHz operating frequency range, and 30W rated power. These solder-mountable devices feature alumina material, robust thick film construction in a 2010 package size, and terminals with matte tin over nickel over silver. Additional features include 50Ω typical resistance, 20dB input and output return loss (minimum), and +100°C mounting surface temperature. Vishay / Barry Industries ATC 3-Sided Wraparound Chip Attenuators are RoHS compliant.