This part is a kind of semiconductor called BAP64-03.
Function of this product has Silicon PIN diode.
Manufacturers : NXP
Image and pinout :

Some of the text within the PDF file :
BAP64-03 Silicon PIN diode Rev. 8 12 May 2015 Product data sheet 1. Product profile 1.1 General description Planar PIN diode in a SOD323 very small plastic SMD package. 1.2 Features and benefits High voltage, current controlled RF resistor for RF attenuators and switches Low diode capacitance Low diode forward resistance Low series inductance For applications up to 3 GHz AEC-Q101 qualified 1.3 Applications RF attenuators and switches 2. Pinning information Table 1. Pin 1 2 Discrete pinning Description cathode anode [1] The marking bar indicates the cathode. 3. Ordering information Simplified outline [1] Symbol VP Table 2. Ordering information Type number Package Name Description BAP64-03 - plastic surface mounted package; 2 leads; [ ... ]
BAP64-03 PDF Datasheet Download
