This part is a kind of semiconductor called ADT1-1WT+.

Function of this product has RF XFMR / SURF MOUNT /T&R/RoHS.

Manufacturers : Mini-Circuits

Image and pinout :

Some of the text within the PDF file :

Surface Mount RF Transformer ADT1-1WT+ ADT1-1WT 75Ω 0.4 to 800 MHz Features -20°C to 85°C -55°C to 100°C 0.5W 30mA Maximum Ratings Operating Temperature Storage Temperature RF Power DC Current • excellent amplitude unbalance, 0.1 dB typ. and phase unbalance, 1 deg. typ. in 1dB bandwidth • aqueous washable • protected under US patent 6,133,525 CASE STYLE: CD542 PRICE: $2.95 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. Permanent damage may occur if any of these limits are exceeded. Pin Connections PRIMARY DOT PRIMARY SECONDARY DOT SECONDARY SECONARY CT NOT USED 3 1 6 4 2 5 Applications • i [ ... ]

ADT1-1WT+ PDF Datasheet Download