The HR1N4247 from Micross is a Space Qualified Diode with Dynamic Resistance 7 to 38 Degree C/W (Thermal), Forward Current 1 A, Forward Voltage 1.2 V, Reverse Current 1 to 25 uA, Reverse Voltage 600 V. Tags: Axial-Lead. More details for HR1N4247 can be seen below.