This part is a kind of semiconductor called K15J50D.

Function of this product has TK15J50D.

Manufacturers : Toshiba Semiconductor

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Some of the text within the PDF file :

TK15J50D TOSHIBA Field Effect Transistor Silicon N Channel MOS Type (π-MOSⅦ) TK15J50D Switching Regulator Applications 15.9 MAX. Unit: mm Ф3.2 ± 0.2 1.0 4.5 9.0 2.0 3.3 MAX. 2.0 Absolute Maximum Ratings (Ta = 25°C) Characteristics Drain-source voltage Gate-source voltage Drain current DC Pulse (Note 1) (Note 1) Symbol VDSS VGSS ID IDP PD EAS IAR EAR Tch Tstg Rating 500 ±30 15 60 210 360 15 21 150 −55 to 150 Unit 2.0 ± 0.3 1.0 ＋0.3 －0.25 5.45 ± 0.2 1.8 MAX. ＋0.3 0.6 －0.1 5.45 ± 0.2 4.8 MAX. V V A W mJ A mJ °C °C Drain power dissipation (Tc = 25°C) Single pulse avalanche energy (Note 2) Avalanche current Repetitive avalanche energy (Note 3) Channel temperature Storage temperature range 1: Gate 2: Drain (Heatsink) 3: Source 2.8 1 2 3 JEDEC JEITA TOSHIBA [ ... ]

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