FERD technology — what it changes in your rectifier stage
The FERD20M60SR is a Field Effect Rectifier Diode (FERD) from STMicroelectronics, a 60 V, 20 A rated rectifier that sits between a standard Schottky and a fast-recovery epitaxial diode in the trade-off space. The FERD structure delivers a forward voltage of 560 mV at 20 A — lower than a comparable ultrafast silicon diode — while keeping reverse leakage at 230 µA at 60 V, which is higher than a Schottky at the same voltage but manageable with proper heatsinking. The fast-recovery characteristic (≤ 500 ns, > 200 mA) makes it suitable for continuous-conduction-mode PFC stages, output rectification in flyback converters, and freewheeling diodes in motor-drive snubbers where the recovery speed reduces switching losses without the cost premium of an ultrafast diode.
Package and thermal path — the I2PAK advantage
This simplifies assembly and reduces the thermal resistance path compared to a non-isolated TO-220 with a mica pad. The trade-off is the through-hole footprint — the I2PAK takes more board area than a D²PAK or TO-252, so it is better suited to point-of-load rectifier stages than high-density SMT layouts.
ROHS3 compliant. The active status means no allocation or LTB premium, but the lead time depends on the distributor's inventory position at the moment of the RFQ.