This part is a kind of semiconductor called ADP-2-4.

Function of this product has Power Splitter/Combiner.

Manufacturers : Mini-Circuits

Image and pinout :

Some of the text within the PDF file :

Surface Mount Power Splitter/Combiner 2 Way-0° Maximum Ratings Operating Temperature Storage Temperature Power Input (as a splitter) Internal Dissipation -40°C to 85°C -55°C to 100°C 1W max. 0.125W max. ADP-2-4+ ADP-2-4 50Ω 10 to 1000 MHz Features • low insertion loss, 0.4 dB typ. • excellent amplitude unbalance, 0.10 dB typ. • very good phase unbalance, 0.5 deg. typ. • aqueous washable • protected under U.S. Patent 6,133,525 CASE STYLE: CD636 PRICE: $11.95 ea. QTY. (10-49) + RoHS compliant in accordance with EU Directive (2002/95/EC) The +Suffix identifies RoHS Compliance. See our web site for RoHS Compliance methodologies and qualifications. Pin Connections SUM PORT PORT 1 PORT 2 GROUND Externally connect together & isolate 1 3 4 6 2,5 Appli [ ... ]

ADP-2-4 PDF Datasheet Download