In the Panasonic schottky diode catalog, there are a number of parts that don't state that the parts are schottky, though the top of the catalog page still carries the schottky barrier diode heading. They share similar part numbering structures and descriptions as parts in the ultrafast rectifier line.
Schottky parts are fabbed using the same 'planar' process, but the 'epitaxial' description seems out of place here.
A possible confusion is aggravated by Panasonic's tendency to describe the reverse recovery time of schottky parts, when positioned in the standard Trr test circuit, where performance is basically an RC effect.
eg:
Does anyone out there have actual experience in weeding out small signal and rectifier schottkys from UFRs in the Panasonic line-up?
I've only ever used a few of their schottky parts. Conventional fast diodes are easily supplied by more prominent mfrs, so there's never been an issue. Vendors seem only to have the same ambiguous data sheets to draw from. They appear to have no trouble correcting Panasonic's faulty package drawing designations - but descriptions of 'schottky or not' follows the data sheet page catalog section's header.
RL