This part is a kind of semiconductor called SBL3040PT.
Function of this product has (SBL3030PT - SBL30100PT) SCHOTTKY BARRIER RECTIFIER.
Manufacturers : Galaxy Semi-Conductor Holdings
Image and pinout :
Some of the text within the PDF file :
BLGALAXY ELECTRICAL SCHOTTKY BARRIER RECTIFIER FEATURES Metal-Semiconductor junction with guard ring Epitaxial construction Low forward voltage drop,low switching losses High surge capability For use in low voltage,high frequency inverters free xxxx wheeling,and polarity protection applications The plastic material carries U/L recognition 94V-0 0.245(6.2) 0.225(5.7) 0.840(21.3) 0.820(20.8) 0.160(4.1) 0.140(3.5) 0.795(20.2) 0.775(19.6) SBL3030PT - - - SBL30100PT VOLTAGE RANGE: 30 --- 100 V CURRENT: 30 A TO-247AD(TO-3P) 0.645(16.4) 0.625(15.9) 0.323(8.2) 0.313(7.9) 0.170(4.3) 0.086(2.18) 1 2 3 0.203(5.16) 0.193(4.90) 30¡ã 10¡ã TYP BOTH SIDES 1¡ã REF BOTH SIDES 0.118(3.0) 0.108(2.7) 0.078REF (1.98) 10¡ã 0.076(1.93) 0.142(3.6) 0.138(3.5) 0.127(3.22) 0.117(2.97) [ ... ]