The JANS1N5819UR-1 from Microchip Technology is a Power Diode with Forward Current 0.05 to 5.0 A, Forward Voltage 0.34 to 0.49 V, Repetitive Peak Reverse Voltage 45 V, Non-Repetitive Peak Forward Current 1.0 A, Temperature operating range -65 to 125 Degree C. Tags: Stud Mount. More details for JANS1N5819UR-1 can be seen below.