The DF5A6.8LF from Toshiba is a Power Diode with Dynamic Resistance 50 ohm, Reverse Current 0.5 uA, Reverse Voltage 6.5 to 7.1 V, Temperature operating range -55 to 125 Degree C, Reverse Breakdown Voltage 6.5 to 7.1 V. Tags: Surface Mount. More details for DF5A6.8LF can be seen below.