NOTE: Please review the specifications for any cross-reference parts and verify that it suits your application before purchasing and installing any item as a replacement.
The HRF32 is a schottky diode manufactured by Hitachi. If you happen to be looking for alternatives we do stock some good options.
SS1H9-E3/61TGICT-ND (Vishay General Semiconductor)
B190-13-FDICT-ND (Diodes Incorporated)
3757-SS19L_R1_00001CT-ND (Panjit International)
-note that this last option is in stock now, but will soon be put into non-stock status.