The DF2S24FS from Toshiba is a Power Diode with Dynamic Resistance 70 ohm, Reverse Current 0.5 uA, Reverse Voltage 22.8 to 25.6 V, Repetitive Peak Reverse Voltage 19 V, Peak Reverse Voltage 19 V. Tags: Surface Mount. More details for DF2S24FS can be seen below.