The STMicroelectronics FERD40L60CG-TR is a dual common-cathode rectifier built on FERD (Field Effect Rectifier Diode) technology, packing two 20 A diodes in a single D²PAK (TO-263-3) surface-mount package. It is rated for a maximum reverse voltage of 60 V and delivers a forward voltage drop of just 545 mV at 20 A per diode — a low Vf that cuts conduction losses in high-current rectification, OR-ing, and freewheeling stages.
For dual-sourcing, ST's FERD family includes the same die in different package options, but no pin-compatible second-source alternate from another manufacturer is listed in the evidence.