The SX5819UR-1 from Sensitron Semiconductors is a Space Qualified Diode with Reverse Current 50 uA to 5.0 mA (Reverse Current At Rated
(PIV)
), Temperature operating range -55 to 125 Degree C, Total Capacitance 70 pF (Junction Capacitance). More details for SX5819UR-1 can be seen below.