Please note: SMS7621-092 is being discontinued and is not recommended for new designs.
The suggested replacement
are
SMS7621-040LF, SMS7621-079LF
The SMS7621-092 is a silicon, low barrier n-type Schottky diode anti-parallel pair. This diode pair can be used for sub-harmonic mixer circuits and other applications such as frequency multiplication.
The low barrier height produces a very small forward voltage. Together with the very low junction capacitance, the small forward voltage provides this diode pair with very low local oscillator power requirements.