Please note: SMSA7621-060 is being discontinued and is not recommended for new designs.
The suggested replacement
are
SMS7621-040LF, SMS7621-079LF
The SMSA7621-060 is a silicon, low-barrier N-type Schottky
diode with an ultra-miniature 0201 footprint. This diode may be
used in detector circuits, sampling circuits, and mixer circuits.
The low series resistance of this low-barrier diode enables good
performance as a low-level mixer at frequencies of 24 GHz and
77 GHz.