This part is a kind of semiconductor called 8TQ100G.

Function of this product has SCHOTTKY RECTIFIER.

Manufacturers : International Rectifier

Image and pinout :

Some of the text within the PDF file :

Bulletin PD-20686 rev. A 01/06 SCHOTTKY RECTIFIER 8TQ...G 8 Amp IF(AV) = 8 Amp VR = 80 - 100V Major Ratings and Characteristics Characteristics Value Units IF(AV) Rectangular waveform VRRM range IFSM @ tp = 5 µs sine VF @8 Apk, TJ = 125°C TJ range 8 80 - 100 850 0.58 - 55 to 175 A V A V °C Description/ Features The 8TQ...G Schottky rectifier series has been optimized for low reverse leakage at high temperature. The proprietary barrier technology allows for reliable operation up to 175° C junction temperature. Typical applications are in switching power supplies, converters, free-wheeling diodes, and reverse battery protection. 175° C TJ operation High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance Low forward voltage drop [ ... ]

8TQ100G PDF Datasheet Download