This part is a kind of semiconductor called A1031.
Function of this product has Cascadable Amplifier.
Manufacturers : MA-COM
Image and pinout :
Some of the text within the PDF file :
A1031 / SMA1031 Cascadable Amplifier 10 to 1000 MHz Rev. V3 Features HIGH EFFICIENCY: 36 mA at +5 Vdc LOW NOISE FIGURE: 2.7 dB (TYP.) HIGH GAIN, TWO STAGES: 28.5 dB (TYP.) MED OUTPUT POWER: +10 dBm (TYP.) Description The A1031RF amplifier is a discrete hybrid design, which uses thin film manufacturing processes for consistent performance and high reliability. This 2 stage bipolar transistor feedback amplifier design displays impressive performance over a broadband frequency range. An active DC biasing network insures temperature-stable performance. Both TO-8 and Surface Mount packages are hermetically sealed, and MIL-STD-883 environmental screening is available. Ordering Information Product Image Part Number Package A1031 TO-8 SMA1031 Surface Mount CA1031 ** SMA [ ... ]