The BZM55C 12BS from Rectron Semiconductor is a Power Diode with Forward Current 0.1 A, Forward Voltage 1.0 V, Reverse Current 0.2 uA, Reverse Voltage 9.0 V, Repetitive Peak Reverse Voltage 9.0 V. Tags: Surface Mount. More details for BZM55C 12BS can be seen below.