This part is a kind of semiconductor called 8TQ100.

Function of this product has Schottky Rectifier.

Manufacturers : Vishay

Image and pinout :

Some of the text within the PDF file :

8TQ... Series Vishay High Power Products Schottky Rectifier, 8 A Base cathode 2 TO-220AC 13 Cathode Anode PRODUCT SUMMARY IF(AV) VR 8A 80/100 V FEATURES • 175 °C TJ operation • Low forward voltage drop • High frequency operation • High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance • Guard ring for enhanced ruggedness and long term reliability • Designed and qualified for industrial level DESCRIPTION The 8TQ... 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, freewheeling diodes, and reverse battery protection. [ ... ]

8TQ100 PDF Datasheet Download