This part is a kind of semiconductor called IRF9Z24NPBF.
Function of this product has HEXFET Power MOSFET.
Manufacturers : International Rectifier
Image and pinout :

Some of the text within the PDF file :
PD - 94982 IRF9Z24NPbF • Lead-Free www.irf.com 1 02/05/04 IRF9Z24NPbF 2 www.irf.com IRF9Z24NPbF www.irf.com 3 IRF9Z24NPbF 4 www.irf.com IRF9Z24NPbF www.irf.com 5 IRF9Z24NPbF 6 www.irf.com IRF9Z24NPbF Peak Diode Recovery dv/dt Test Circuit D.U.T * + + Circuit Layout Considerations • Low Stray Inductance • Ground Plane • Low Leakage Inductance Current Transformer - + RG VGS • dv/dt controlled by RG • ISD controlled by Duty Factor "D" • D.U.T. - Device Under Test + VDD * Reverse Polarity of D.U.T for P-Channel Driver Gate Drive P.W. Period D= P.W. Period [VGS=10V ] *** D.U.T. ISD Waveform Rev [ ... ]
IRF9Z24NPBF PDF Datasheet Download
