Infineon & IR-International Rectifier IRL3803V, 30V, 140A, 200W, RDS(on)=5.5mΩ 
Single N-Channel HEXFET Power MOSFET. 
Dynamic dv/dt Rating, 
Advanced Process Technology, 
Ultra Low On-Resistance, 
Fast Switching, 

Case type: TO-220AB-3PIN 

1 - GATE 
2 - DRAIN 
3 - SOURCE 

IRL3803V PbF (PbF = Lead Free), =IRL3803VPBF, L3803, IRL3803PBF,