The SDS120J020H3 from Sanan IC is a RF Schottky Diode with Peak Reverse Voltage 1200 V, Forward continuous Current 20000 mA, Forward Voltage 1.5 to 2.3 V, Current Surge Peak 150 A (Non-Repetitive), Current 50 uA (Reverse). Tags: Schottky Barrier Diode (SBD). More details for SDS120J020H3 can be seen below.