Design & Reliability
How to Attach a Heatsink to a MOSFET
Attach a heatsink to a MOSFET with a flat clean interface, the correct thermal material and electrical insulation, controlled clamping force, and verified junction temperature.
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Power MOSFETs
How to Test a Depletion-Mode MOSFET
Test a depletion-mode MOSFET by identifying its pinout, confirming it conducts at zero gate bias, and applying a controlled opposing gate voltage to reduce drain…
Design & Reliability
How to Protect a MOSFET From dV/dt
Protect a MOSFET from dV/dt by controlling switch-node slew rate, minimizing parasitic coupling, strengthening turn-off, clamping the gate, and verifying waveforms under worst-case conditions.
SiC & GaN
Which Products Don’t Use GaN Transistors?
Many low-cost, low-frequency, very-low-power, legacy, and ultra-high-voltage products still use silicon, IGBTs, BJTs, or SiC instead of GaN transistors.
SiC & GaN
Is GaN Better Than a SiC MOSFET?
GaN is often better for very fast switching and high power density at lower voltage, while SiC MOSFETs often lead at higher voltage, power, temperature,…
Power Supply
What Is a 12 V Switching Power Supply?
A 12 V switching power supply converts AC or DC input into a regulated 12 V output using high-frequency switching, magnetics, rectification, filtering, feedback, and…
Power Supply
What Is a MOSFET Power Supply?
A MOSFET power supply is normally a switching converter that uses MOSFETs as high-speed power switches, synchronous rectifiers, load switches, or protection devices.
Power MOSFETs
When to Use a BJT vs a MOSFET
Choose a BJT or MOSFET by voltage, current, switching speed, drive power, linearity, thermal behavior, cost, and fault requirements rather than by a single rule…