This part is a kind of semiconductor called K12A60U.

Function of this product has TK12A60U.

Manufacturers : Toshiba Semiconductor

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Some of the text within the PDF file :

TK12A60U TOSHIBA Field Effect Transistor Silicon N Channel MOS Type (DTMOSⅡ) TK12A60U Switching Regulator Applications • • • • Low drain-source ON-resistance : RDS (ON) = 0.36 Ω (typ.) High forward transfer admittance : ⎪Yfs⎪ = 7.0 S (typ.) Low leakage current: IDSS = 100 μA (VDS = 600 V) Enhancement-mode: Vth = 3.0 to 5.0 V (VDS = 10 V, ID = 1 mA) Unit: mm Absolute Maximum Ratings (Ta = 25°C) Characteristics Drain-source voltage Drain-gate voltage (RGS = 20 kΩ) Gate-source voltage DC Drain current (Note 1) Symbol VDSS VDGR VGSS ID IDP PD EAS IAR EAR Tch Tstg Rating 600 600 ±30 12 24 35 69 12 3.5 150 -55 to 150 A W mJ A mJ °C °C 1: Gate 2: Drain 3: Source Unit V V V Pulse (t = 1 ms) (Note 1) Drain power dissipation (Tc = 25°C) Single pulse a [ ... ]

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