The DF2B6.8AFS from Toshiba is a Power Diode with Reverse Current 0.5 uA, Reverse Voltage 5.8 to 7.8 V, Repetitive Peak Reverse Voltage 5.0 V, Peak Reverse Voltage 5.0 V, Temperature operating range -55 to 150 Degree C. Tags: Surface Mount. More details for DF2B6.8AFS can be seen below.