From the UltraCMOS®, HaRP™ series, it's a Attenuator.A solid enclosure of Tape & Reel (TR) surrounds optical attenuator.Packed in 32-VFQFN Exposed Pad, the RF Attenuator is convenient for shipping overseas.
PE43705B-Z Features
UltraCMOS®, HaRP™ series
PE43705B-Z Applications
There are a lot of pSemi PE43705B-Z Attenuators applications.