This part is a kind of semiconductor called BFP740ESD.

Function of this product has Robust Low Noise Silicon Germanium Bipolar RF Transistor.

Manufacturers : Infineon

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Some of the text within the PDF file :

BFP740ESD Robust Low Noise Silicon Germanium Bipolar RF Transistor Data Sheet Revision 1.1, 2012-10-08 RF & Protection Devices Edition 2012-10-08 Published by Infineon Technologies AG 81726 Munich, Germany © 2013 Infineon Technologies AG All Rights Reserved. Legal Disclaimer The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation, warranties of non-infringement of intellectual property rights of any third party. Information For further information on technology, [ ... ]

BFP740ESD PDF Datasheet Download