This part is a kind of semiconductor called BB833.

Function of this product has Silicon Tuning Diodes.

Manufacturers : Infineon Technologies AG

Image and pinout :

Some of the text within the PDF file :

BB833... Silicon Tuning Diodes
Extended frequency range up to 2.5 GHz; spezial design for use in TV-sat indoor units
High capacitance ratio BB833 1 2 Type BB833 Package SOD323 Configuration single LS (nH) Marking 1.8 white X Maximum Ratings at TA = 25°C, unless otherwise specified Parameter Diode reverse voltage Peak reverse voltageR
5k Forward current Operating temperature range Storage temperature IF Top Tstg 20 -55 ... 150 -55 ... 150 mA °C Symbol VR VRM Value 30 35 Unit V 1 Nov-07-2002 BB833... Electrical Characteristics at TA = 25°C, unless otherwise specified Symbol Values Parameter min. DC Characteristics Reverse current VR = 30 V VR = 30 V, TA = 85 °C AC Characteristics Diode capacitance VR = 1 V, f = 1 MHz VR = 28 V, f = 1 MHz CT Unit max. nA 20 500 typ. - [ ... ]

BB833 PDF Datasheet Download