The DF3A6.8CT from Toshiba is a Power Diode with Dynamic Resistance 25 ohm, Reverse Current 0.5 uA, Reverse Voltage 6.4 to 7.2 V, Temperature operating range -55 to 150 Degree C, Reverse Breakdown Voltage 6.4 to 7.2 V. Tags: Surface Mount. More details for DF3A6.8CT can be seen below.