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The onsemi NGTB40N120IHLWG is a Field Stop (FS) Trench Insulated Gate Bipolar Transistor with an integrated free-wheeling diode in a TO-247 package. It features a collector-emitter voltage of 1200 V and a continuous collector current of 40 A at 100°C case temperature. The device exhibits a saturation voltage of 1.90 V at 25°C and a turn-off switching loss of 1.40 mJ under standard test conditions. Total gate charge is 420 nC, and the junction-to-case thermal resistance for the IGBT is 0.48 °C/W.
Verify the component marking '40N120IHL' and the suffix 'G' to confirm lead-free status. Ensure the package style matches CASE 340L (TO-247 Style 4). Confirm that the application requires the specific thermal characteristics optimized for induction heating rather than general-purpose high-voltage switching.
Select this component when low conduction losses are critical for efficiency in resonant or soft-switching topologies. The integrated diode simplifies circuit design by eliminating external components. Verify that the operating junction temperature remains within the -55 to +150 °C range and that the gate drive voltage aligns with the specified 15 V threshold for optimal performance.
This device belongs to onsemi's IGBT portfolio utilizing Field Stop technology. It is designed to replace older NPT designs in high-frequency applications where reduced switching energy is required. The integration of the anti-parallel diode distinguishes it from single IGBT variants like the NGTB40N120IHWG.
Public confirmed substitute part numbers: NGTB40N120IHLW/D.
The maximum pulsed collector current (ICM) is 320 A, limited by the maximum junction temperature.
The junction-to-case thermal resistance is 0.48 °C/W for the IGBT and 1.5 °C/W for the integrated diode.
At a junction temperature of 125°C, the typical turn-off delay time (td(off)) is 380 ns.