This part is a kind of semiconductor called SB5150.

Function of this product has SCHOTTKY BARRIER RECTIFIER.

Manufacturers : GOOD ELECTRONIC

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Some of the text within the PDF file :

SB5150 THRU SB5200 SCHOTTKY BARRIER RECTIFIER Reverse Voltage - 150 to 200 Volts Forward Current - 5.0 Amperes DO-201AD 0.210 (5.3) 0.190 (4.8) DIA. 1.0 (25.4) MAX. 0.375 (9.50) 0.285(7.20) FEATURES The plastic package carries Underwriters Laboratory Flammability Classification 94V-0 Metal silicon junction,majority carrier conduction Low power loss,high efficiency High forward surge current capability High temperature soldering guaranteed: 250 C/10 seconds,0.375”(9.5mm) lead length, 5 lbs. (2.3kg) tension 0.052 (1.3) 0.048 (1.2) DIA. 1.0 (25.4) MAX. Dimensions in inches and (millimeters) MECHANICAL DATA Case: JEDEC DO-201AD molded plastic body Terminals: Plated axial leads, solderable per MIL-STD-750, Method 2026 Polarity: Color band denotes cathode end Mounting Position: Any Wei [ ... ]

SB5150 PDF Datasheet Download