This part is a kind of semiconductor called 2085-6017-00.

Function of this product has BackDiodeDetector.

Manufacturers : TycoElectronics

Image and pinout :

Some of the text within the PDF file :

Back Diode Detector V 3.00 2085 Series Specifications Parameter Bias Current Output Polarity Video Resistance Maximum Power Temperature Stability Temperature Range Finish 0 Negative 4 80 Ohms Nominal 2 40 mW CW or 3 erg spike ± 1 dB over operating range of –65°C to +100°C -65°C to +100°C Passivated Stainless Steel Specification Mechanical Outline Drawing Detector Part Number Frequency Range (GHz) Flatness1 Typical (± dB) VSWR1 Typical Open Circuit Sensitivity2 (mV/mW) Typ. Min 400 700 750 525 550 500 Tangential Sensitivity3 (-dBm) Typ. 47.0 53.0 53.5 52.0 52.5 52.0 Min. 46.0 52.0 52.5 51.0 51.5 51.0 Output Capacitance Typical (pF) Dim. A Inches (mm) 2085-6010-00 2085-6013-00 2085-6014-00 2085-6015-00 2085-6016-00 2085-6017-00 1.0 - 18.0 1.0 - 2.0 2.0 - 4.0 4.0 - 8.0 8. [ ... ]

2085-6017-00 PDF Datasheet Download