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
The TO-262 Full Pack (I²Pak) is a fully isolated through-hole package — the metal tab is not electrically connected to the die, so no insulating pad or thermal washer is needed between the device and the heatsink. 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.
Lifecycle and sourcing — active production, no cross-reference on record
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.