This part is a kind of semiconductor called 09N03LA.

Function of this product has IPB09N03LA.

Manufacturers : Infineon Technologies

Image and pinout :

Some of the text within the PDF file :

IPB09N03LA IPI09N03LA, IPP09N03LA OptiMOS®2 Power-Transistor Features • Ideal for high-frequency dc/dc converters • N-channel • Logic level • Excellent gate charge x R DS(on) product (FOM) • Very low on-resistance R DS(on) • Superior thermal resistance • 175 °C operating temperature • dv /dt rated P-TO263-3-2 Product Summary V DS R DS(on),max (SMD version) ID 25 8.9 50 V mΩ A P-TO262-3-1 P-TO220-3-1 Type IPB09N03LA IPI09N03LA IPP09N03LA Package P-TO263-3-2 P-TO262-3-1 P-TO220-3-1 Ordering Code Q67042-S4151 Q67042-S4152 Q67042-S4153 Marking 09N03LA 09N03LA 09N03LA Maximum ratings, at T j=25 °C, unless otherwise specified Parameter Continuous drain current Symbol Conditions ID T C=25 °C1) T C=100 °C Pulsed drain current Avalanche energy, s [ ... ]

09N03LA PDF Datasheet Download