irf1404pbf.pdf datasheet:

PD-94968BIRF1404PbFHEXFET Power MOSFETl Advanced Process Technologyl Ultra Low On-ResistanceDl Dynamic dv/dt RatingVDSS = 40Vl 175C Operating Temperaturel Fast SwitchingRDS(on) = 0.004l Fully Avalanche RatedGl Lead-FreeID = 202ASDescriptionSeventh Generation HEXFET Power MOSFETs fromInternational Rectifier utilize advanced processingtechniques to achieve extremely low on-resistance persilicon area. This benefit, combined with the fastswitching speed and ruggedized device design thatHEXFET power MOSFETs are well known for, providesthe designer with an extremely efficient and reliabledevice for use in a wide variety of applications.The TO-220 package is universally preferred for allcommercial-industrial applications at power dissipationTO-220ABlevels to approximately 50 watts. The low thermalresistance and low package