The DF2S5.6FS from Toshiba is a Power Diode with Dynamic Resistance 30 ohm, Reverse Current 1.0 uA, Reverse Voltage 5.3 to 6.0 V, Repetitive Peak Reverse Voltage 3.5 V, Peak Reverse Voltage 3.5 V. Tags: Surface Mount. More details for DF2S5.6FS can be seen below.