The KE12DJ10B from CALY Technologies is a Power Diode with Forward Current 10 to 17 A, Forward Voltage 1.5 to 2.1 V, Reverse Current 1 to 400 uA, Reverse Voltage 1200 V, Repetitive Peak Reverse Voltage 1200 V. Tags: Die. More details for KE12DJ10B can be seen below.