This part is a kind of semiconductor called BAT14.

Function of this product has Silicon Schottky Diode.

Manufacturers : Infineon Technologies AG

Image and pinout :

Some of the text within the PDF file :

BAT14... Silicon Schottky Diode
DBS mixer applications up to 12 GHz
Low noise figure
Low barrier type BAT14-03W 1 2 ESD: Electrostatic discharge sensitive device, observe handling precaution! Type BAT14-03W Package SOD323 Configuration single LS(nH) Marking 1.8 O/white Maximum Ratings at TA = 25°C, unless otherwise specified Parameter Symbol VR IF Ptot Tj Top Tstg Symbol RthJS Value Unit Diode reverse voltage Forward current Total power dissipation TS
85 °C 4 90 100 150 -55 ... 125 -55 ... 150 V mA mW °C Junction temperature Operating temperature range Storage temperature Thermal Resistance Parameter Value Unit Junction - soldering point1) 1For
690 K/W calculation of RthJA please refer to Application Note Thermal Resistance 1 Feb-03-2003 BAT14... Electrical C [ ... ]

BAT14 PDF Datasheet Download