This part is a kind of semiconductor called MNA-xxx.
Function of this product has Monolithic Amplifiers High Directivity.
Manufacturers : Mini-Circuits
Image and pinout :

Some of the text within the PDF file :
Surface Mount Monolithic Amplifiers High Directivity, 50Ω, 0.5 to 5.9 GHz Features • • • • • • • • • CASE STYLE:DQ849 MNA-SERIES 3V & 5V operation micro-miniature size .120"x.120" no external biasing circuit required high directivity, 20 dB typ. wide bandwidth, 0.5 to 5.9 GHz low noise figure, 2.9 dB typ. (MNA-6) output power, up to +19 dBm typ. excellent repeatability low cost Applications • buffer amplifier • cellular • PCN Electrical Specifications at TAMB=25°C MODEL NO. FREQ. DC (GHz) VOLTS (V) fL - fU MNA-2 MNA-3 MNA-4 MNA-5 MNA-6 0.5-2.5 0.5-2.5 0.5-2.5 0.5-2.5 0.5-2.5 5.0 2.8 5.0 2.8 5.0 2.8 5.0 2.8 5.0 2.8 GAIN, dB Typical MAXIMUM POWER (dBm) Min. at 2 GHz 10.3 13.0 14.0 17.0 21.5 Output (1 dB Comp.) Typ. fL [ ... ]
MNA-xxx PDF Datasheet Download
