FM400TU-07A
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60989719-FM400TU-07A
Mitsubishi Transistors
It is the time from when Vgs drops below 90% of the gate drive voltage to when the drain current drops below 90% of the load current. It is the delay before current starts to transition in the load, and depends on Rg. Ciss.
Turn-on delay, td(on), is the time taken to charge the input capacitance of the device before drain current conduction can start.