I am unable to figure out what difference is between the following part numbers, poring over the data sheet has shown no discernable difference and/or no mention of what the suffixes mean although they are both listed. Looking through Digikey pages I am also unable to exactly pin down what differences there are between the two part numbers and they even show up as an 'exact' match in siliconexpert. I am hoping someone has some sort of information on what these differences may be.
Is there a difference? Is this listed somewhere? I can see that the HFE and MPFE variants have different temperature requirements, but is there any difference between the EFE and IFE, and if not why are there two separate part numbers?