Tape & Reel (TR) is the solid enclosure in which optical attenuator is packaged.As the RF Attenuator is packed in 1206 (3216 Metric), international shipping is convenient.
E-TA3216 T 1DB N5 Features
E-TA3216 T 1DB N5 Applications
There are a lot of Nidec Copal Electronics E-TA3216 T 1DB N5 Attenuators applications.