MOSFET 4 Leads Package TO-247-4L(TK25Z60X) Application Circuit

This reference design provides example circuit for maximize switching performance and efficiency using 4 lead MOSFET package (TO-247-4L) which reduces package inductance.

Device and prastic inductance of PCB trace of MOSFET 4 leads package TO-247-4L(TK25Z60X) application circuit.
Simulation circuit of MOSFET 4 leads package TO-247-4L(TK25Z60X) application circuit.


  • Introduction of features of the TO-247-4L package, a 4 leads structure, which has a source terminal for gate drive circuit additionally compared with the conventional 3 leads pacckage.
  • Describing the 4 leads package feature that achievs less oscillation of gate signal and lower switching loss than the 3 leads because the 4 leads package is not affected by parasitic inductance of source wiring

Design Documents

Design Documents contain the documents below.

Design Data

Design Data contains the contents listed below.

Used Toshiba Items

Part Number Device Category Portion Usage Description
Power MOSFET (N-ch 500V<VDSS≤700V) N-ch MOSFET, 600 V, 0.125 Ω@10V, TO-247-4L, DTMOSⅣ-H

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