Found 4 alternatives for RN731VFHTE-17 by Rohm Semiconductor. Diodes Rf — SC-90, SOD-323F.
RF DIODE PIN 60V 150MW SMINI2-F1
60V 100MA, SINGLE, LOW RF PIN DI
RF DIODE PIN 50V UMD2
RF DIODE PIN 50V 100MW UMD2