The optical attenuator is packaged in Tape & Reel (TR) solid enclosure.The RF Attenuator can be shipped overseas conveniently because it is packaged in 0805 (2012 Metric).
E-TA2012 T 8DB N1 Features
E-TA2012 T 8DB N1 Applications
There are a lot of Nidec Copal Electronics E-TA2012 T 8DB N1 Attenuators applications.