SMBJ28A-TR Transil™ TVS (Transient Voltage Suppressor) by STMicroelectronics. Type: Uni-directional Package: Surface Mount SMB ( DO-214AA) Download STMicroelectronics SMBJ28A-TR datasheet: Status: NOS (New Old Stock) - still current product. *****Sold in a strip of FIVE diodes, price stated is PER single diode **** RoHS compliant: YES