The VS18VUA1LBTBR1 from ROHM Semiconductor is a Power Diode with Reverse Current 2.5 µA, Reverse Voltage 18 V, Temperature operating range -55 to 150 Degree C, Reverse Breakdown Voltage 20 to 22.1 V. Tags: Surface Mount. More details for VS18VUA1LBTBR1 can be seen below.