A part marked 100 uH with a plus or minus 10 percent tolerance may legitimately measure anywhere between 90 and 110 uH, and a plus or minus 20 percent part anywhere between 80 and 120 uH. That windo...

A 20 µm nanocrystalline ribbon can hold a relative permeability above 30,000 and still saturate near 1.2 T. That combination of softness and flux capacity is why the material turns up in common-mode...

A ferrite rod does two jobs at once: it gathers magnetic flux from a field far wider than its own cross-section, and it lifts the inductance of the coil wound on it by an order of magnitude. A 50 mm...

A custom magnetic program almost always starts with a constraint that no catalogue part satisfies. A 200 kHz LLC stage needs 22 uH at 6 A of DC bias, the board leaves 4 mm of height above the surfac...

Two power inductors can run at the same 100 kHz switching frequency and the same 120 mT peak flux density, share the same core size, and still differ by a factor of two in core loss. The Steinmetz f...

A core loss budget that predicts 12 W while the bench measures 19 W is rarely a bad material. It is usually the Steinmetz equation used outside the conditions it was fitted for, and the correction c...

Three numbers decide whether a ferrite transformer survives its first thermal test: the peak flux density inside the core, the ambient temperature in the enclosure, and the saturation limit of the ma...

A 30 W auxiliary supply for an industrial control board, a 25 W LED driver, or a compact flyback in a smart meter — size any of these and the EF20 ferrite core lands on your shortlist within minutes....

A 1,200 W industrial power supply without power factor correction can draw a severely distorted line current, wasting energy and adding harmonics that disturb other equipment on the same grid. A PFC ...