- SD550Y
- Hitano Enterprise Corp.
- 5 A, 50 V, SILICON, RECTIFIER DIODE, TO-251
- SD550YS
- Panjit Semiconductor
- 5 A, 50 V, SILICON, RECTIFIER DIODE, TO-252
- SD550YST/R13
- Panjit Semiconductor
- 5 A, 50 V, SILICON, RECTIFIER DIODE, TO-252
- SD550YT
- Panjit Semiconductor
- 5 A, 50 V, SILICON, RECTIFIER DIODE, TO-251AB
- SD550YS
- Sensitron Semiconductor
- 5 A, 50 V, SILICON, RECTIFIER DIODE, TO-252AA
- SD550YS
- Won-top Electronics
- (SD520YS - SD5100YS) 5.0A DPAK SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER
- SD550YS-T3
- Won-top Electronics Co., Ltd.
- RECTIFIER DIODE