This part is a kind of semiconductor called SBL2040CT.

Function of this product has 20A SCHOTTKY BARRIER RECTIFIER.

Manufacturers : Diodes Incorporated

Image and pinout :

Some of the text within the PDF file :

SBL2030CT - SBL2060CT 20A SCHOTTKY BARRIER RECTIFIER Features · · · · · · · Schottky Barrier Chip Guard Ring Die Construction for Transient Protection Low Power Loss, High Efficiency High Surge Capability High Current Capability and Low Forward Voltage Drop For Use in Low Voltage, High Frequency Inverters, Free Wheeling, and Polarity Protection Applications Plastic Material: UL Flammability Classification Rating 94V-0 TO-220AB L B C K D A 1 2 3 M Dim A B C D E G Min 14.22 9.65 2.54 5.84 ¾ 12.70 2.29 0.51 3.53Æ 3.56 1.14 0.30 2.03 Max 15.88 10.67 3.43 6.86 6.35 14.73 2.79 1.14 4.09Æ 4.83 1.40 0.64 2.92 E J N G H J K L M N P Mechanical Data · · · · · · Case: Molded Plastic Terminals: Plated Leads Solderable per MIL-STD-202, Method 208 Polarity: As Marked on Body Weigh [ ... ]

SBL2040CT PDF Datasheet Download