The ADS120J040G2 from Sanan IC is a RF Schottky Diode with Peak Reverse Voltage 1200 V, Forward continuous Current 20000 to 40000 mA, Forward Voltage 1.45 to 2.2 V, Current Surge Peak 180 A (Non-Repetitive), Current 50 uA (Reverse). Tags: Schottky Barrier Diode (SBD). More details for ADS120J040G2 can be seen below.