This part is a kind of semiconductor called H1102.

Function of this product has LAN DISCRETE TRANSFORMER MODULES.

Manufacturers : PULSE

Image and pinout :

Some of the text within the PDF file :

LAN Discrete Transformer Modules LAN DISCRETE TRANSFORMER MODULES Pulse Discrete Transformer Modules Pulse offers the most comprehensive line of discrete LAN transformer modules available to the OEM worldwide. Modules for 10/100/1000BASE-T are optimized for all major LAN transceivers. All modules provide electrical circuit isolation that meets IEEE 802.3, while maintaining signal integrity needed for the most demanding applications. Pulse manufactures the broadest selection of packaging options, from through hole (THT) SIL devices to the smallest available surface mount (SMT) solution at .078" (1.98 mm). For RoHS compliant products, please refer to individual data sheets for details. NOTE: This catalog section serves as an overview to the LAN discrete modules. For de [ ... ]

H1102 PDF Datasheet Download