This part is a kind of semiconductor called RFD14N05.

Function of this product has 14A/ 50V/ 0.100 Ohm/ N-Channel Power MOSFETs.

Manufacturers : Fairchild Semiconductor

Image and pinout :

Some of the text within the PDF file :

RFD14N05, RFD14N05SM, RFP14N05 Data Sheet January 2002 14A, 50V, 0.100 Ohm, N-Channel Power MOSFETs These are N-channel power MOSFETs manufactured using the MegaFET process. This process, which uses feature sizes approaching those of LSI integrated circuits, gives optimum utilization of silicon, resulting in outstanding performance. They were designed for use in applications such as switching regulators, switching converters, motor drivers and relay drivers. These transistors can be operated directly from integrated circuits. Formerly developmental type TA09770. Features • 14A, 50V • rDS(ON) = 0.100Ω • Temperature Compensating PSPICE ® Model • Peak Current vs Pulse Width Curve • UIS Rating Curve • 175o C Operating Temperature • Related Literature - TB334 “Guidelines fo [ ... ]

RFD14N05 PDF Datasheet Download