This part is a kind of semiconductor called S15D40PT.

Function of this product has (S15D30PT - S15D60PT) SCHOTTKY BARRIER RECTIFIER.

Manufacturers : Chenmko Enterprise

Image and pinout :

Some of the text within the PDF file :

CHENMKO ENTERPRISE CO.,LTD SCHOTTKY BARRIER RECTIFIER VOLTAGE RANGE 30 - 60 Volts FEATURES * Plastic package has Underwriters Laboratory Flammability Classification 94V-0 * Metal Silicon junction, majority carrier conduction * Low power loss,high efficiency * High current capability, low forward voltage drop * Guardring for overvoltage protection * For use in low voltage, high frequency inverters, free wheeling, and polarity protection applications * High temperature soldering in accordance with CECC 802 / Reflow guaranteed S15D30PT THRU S15D60PT CURRENT 15 Amperes TO-247(TO-3P) .245 (6.2) .225 (5.7) .645 (16.0) .625 (15.9) .085 (2.16) .075 (1.90) .203 (5.16) .193 (4.90) .135 (3.4) .115 (2.9) .840 (21.3) .820 (20.8) .093 (2.30) .076 (1.97) MECHANICAL DATA Case: JEDEC TO-247 molded p [ ... ]

S15D40PT PDF Datasheet Download