The SDS120J100A from Sanan IC is a RF Schottky Diode with Peak Reverse Voltage 1200 V, Forward continuous Current 100000 mA, Forward Voltage 1.55 to 2.1 V, Current Surge Peak 800 A (Non-Repetitive), Current 200 uA (Reverse). Tags: Schottky Barrier Diode (SBD). More details for SDS120J100A can be seen below.