This part is a kind of semiconductor called AC2091.
Function of this product has (AC2091 / AC2092) 30 TO 2000 MHz TO-8 CASCADABLE AMPLIFIERS.
Manufacturers : Teledyne
Image and pinout :

Some of the text within the PDF file :
Rev.7/10 AC2091 AC2092 Typical Values 30 TO 2000 MHz TO-8 CASCADABLE AMPLIFIERS AC2091 <1.5 dB +19.5 dBm 30-2200 MHz 17.0 dB AC2092 <1.5 dB +21.5 dBm 30-2200 MHz 18.0 dB Low Noise Figure . . . . . . . . . . . . . . . . . . Medium Output Power . . . . . . . . . . . . . . Broad Bandwidth . . . . . . . . . . . . . . . . . . High Gain . . . . . . . . . . . . . . . . . . . . . . . . . High Performance Thin Film Standard Size TO-8 Package AC2091/AC2092 TO-8 Package for Amplifiers SPECIFICATIONS* Parameter Frequency (Min.) Small Signal Gain (Min.) AC2091 AC2092 Gain Flatness (Max.) Noise Figure (Max.) 300-2000 MHz SWR (Max.) Input/Output AC2091 AC2092 AC2091 AC2092 AC2091 AC2092 Typical 30-2200 MHz 17.0 dB 18.0 dB ±0.4 dB <1.5 dB 1.5:1 +19.5 dBm +21.5 dBm 22.0 dB 23.0 dB 60.0 mA 100.0 mA [ ... ]
AC2091 PDF Datasheet Download
