View stw26nm60 datasheet:

STW26NM60 N-CHANNEL 600V - 0.125? - 26A TO-247 Zener-Protected MDmesh™Power MOSFET TYPE VDSS RDS(on) ID STW26NM60 600 V < 0.135 ? 30 A TYPICAL RDS(on) = 0.125? HIGH dv/dt AND AVALANCHE CAPABILITIES IMPROVED ESD CAPABILITY LOW INPUT CAPACITANCE AND GATE CHARGE LOW GATE INPUT RESISTANCE TO-247 DESCRIPTION The MDmesh™ is a new revolutionary MOSFET technology that associates the Multiple Drain pro- cess with the Company’s PowerMESH™ horizontal layout. The resulting product has an outstanding low INTERNAL SCHEMATIC DIAGRAM on-resistance, impressively high dv/dt and excellent avalanche characteristics. The adoption of the Company’s proprietary strip technique yields overall dynamic performance that is significantly better than that of similar competition’s products.