650 V / 50 A NPT IGBT in a surface-mount D2Pak
The Infineon AIGB50N65F5ATMA1 is a non-punch-through (NPT) IGBT rated for 650 V collector-emitter breakdown and 50 A continuous collector current. The NPT construction gives it the ruggedness and short-circuit withstand time you expect in motor-drive and welding-inverter stages — it doesn't latch up the way some PT (punch-through) parts can under fault. The standard gate input is straightforward to drive with a bootstrap or isolated gate-driver IC; no special negative-gate bias required for most switching frequencies.
Package and thermal routing
Housed in a TO-263-3 (D2Pak) surface-mount package with two leads plus the tab (PG-TO263-3-2). The exposed collector tab is the main thermal path — your PCB layout needs a generous copper pour and via array under that tab to pull the heat out. At 50 A continuous the junction-to-case thermal resistance will dominate, so don't skimp on the thermal pad area. The package is compatible with standard reflow profiles;.
