650 V, 7 A switching MOSFET in DPAK
The STD11N65M2: The 650 V drain-source breakdown voltage places it in the offline power conversion class — suitable for flyback converters, PFC stages, and auxiliary supplies where the DC bus sits at 380 V to 400 V with switching transients that can exceed 600 V. The 670 mOhm maximum on-resistance at 3.5 A and 10 V gate drive defines the conduction loss for a given load current. At 3.5 A the dissipation is roughly 8.2 W, which the DPAK package must sink through the exposed pad to the PCB copper.
The MDmesh II Plus structure uses a super-junction column that reduces the gate-drain capacitance (Crss) compared to planar MOSFETs, which improves the Miller plateau behaviour and reduces turn-off delay. This matters in QR flyback designs where the FET must turn off cleanly at the valley point to minimise switching loss.
Temperature range and package integration
The ±25 V maximum gate-source rating provides margin for gate-drive overshoot in layouts with long gate-loop inductance.
Lifecycle and compliance status
The part is ROHS3 compliant (2011/65/EU + 2015/863), which covers the full exemption list and avoids the supply-chain friction of an exemption-dependent status. The base product number STD11 indicates the 650 V, 7 A die in the DPAK package.