This part is a kind of semiconductor called HC0650A03.

Function of this product has Hybrid Coupler.

Manufacturers : Yantel

Image and pinout :

Some of the text within the PDF file :

HC0650A03 Hybrid Coupler 3 dB, 90o Rev B2 Description The HC0650A03 is a low profile, high performance 3dB hybrid coupler in a new easy to use, manufacturing friendly surface mount package. It is designed for CMMB band applications. The HC0650A03 is designed particularly for balanced power and low noise amplifiers, plus signal distribution and other applications where low insertion loss and tight amplitude and phase balance is required. It can be used in high power applications up to 200 Watts. Parts have been subjected to rigorous qualification testing and they are manufactured using materials with coefficients of thermal expansion (CTE) compatible with common substrates such as FR4, G-10, RF-35, RO4350 and polyimide. Orientation Marker Part No. Signal Pad GND Features: ● 470 –860 [ ... ]

HC0650A03 PDF Datasheet Download