This part is a kind of semiconductor called TK8A50DA.

Function of this product has Field Effect Transistor.

Manufacturers : Toshiba Semiconductor

Image and pinout :

Some of the text within the PDF file :

TK8A50DA TOSHIBA Field Effect Transistor Silicon N Channel MOS Type (π-MOSⅦ) TK8A50DA Switching Regulator Applications • • • • Low drain-source ON-resistance: RDS (ON) = 0.76 Ω (typ.) High forward transfer admittance: ⎪Yfs⎪ = 4.1 S (typ.) Low leakage current: IDSS = 10 μA (max) (VDS = 500 V) Enhancement-mode: Vth = 2.4 to 4.4 V (VDS = 10 V, ID = 1 mA) Ф3.2 ± 0.2 10 ± 0.3 A 3.9 3.0 Unit: mm 2.7 ± 0.2 1.14 ± 0.15 2.8 MAX. 2.54 1 2 3 2.6 ± 0.1 13 ± 0.5 Absolute Maximum Ratings (Ta = 25°C) Characteristics Drain-source voltage Gate-source voltage DC Drain current (Note 1) Symbol VDSS VGSS ID IDP PD EAS IAR EAR Tch Tstg Rating 500 ±30 7.5 30 35 140 7.5 3.5 150 −55 to 150 A W mJ A mJ °C °C Unit V V 0.64 ± 0.15 0.69 ± 0.15 Ф0.2 M A 2.54 15.0 ± 0.3 Pulse (t = [ ... ]

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