irf3205.pdf datasheet:

PD-91279EIRF3205HEXFET Power MOSFET Advanced Process TechnologyDVDSS = 55V Ultra Low On-Resistance Dynamic dv/dt Rating 175C Operating TemperatureRDS(on) = 8.0mG Fast Switching Fully Avalanche RatedID = 110A SDescriptionAdvanced HEXFET Power MOSFETs from InternationalRectifier utilize advanced processing techniques to achieveextremely low on-resistance per silicon area. Thisbenefit, combined with the fast switching speed andruggedized device design that HEXFET power MOSFETsare well known for, provides the designer with an extremelyefficient and reliable device for use in a wide variety ofapplications.The TO-220 package is universally preferred for allcommercial-industrial applications at power dissipationlevels to approximately 50 watts. The low thermalTO-220ABresistance and low package cost of the TO-220 contributeto