In summary, Hirose’s AT-100V series is a family of DC to 18 GHz SMA in-line (plug-jack) attenuators, available in 1dB steps from 1 to 15dB. This series has a highly reliable physical structure which makes it suitable for a wide variety of applications such as experimental use in laboratories and mass production facilities. Rather than solid soldering, spring connections are applied between contacts and the resistive substrate, providing stable, high frequency characteristics in environments with varying temperatures, vibrations and shocks. External surfaces are clad in  stainless steel and highly durable and anti-corrosive gold plating is applied on the contact areas. Proving its robustness and high reliability the AT-100V series fully conforms to the MIL standard (MIL-STD-202) and is RoHS compliant as well.