The DF2S10FS from Toshiba is a Power Diode with Dynamic Resistance 30 ohm, Reverse Current 0.5 uA, Reverse Voltage 9.4 to 10.6 V, Repetitive Peak Reverse Voltage 8 V, Peak Reverse Voltage 8 V. Tags: Surface Mount. More details for DF2S10FS can be seen below.