| 1SMB18CA | ON Semiconductor | Zener Transient Voltage Suppressors |
| 1SMB18CAT3 | ON Semiconductor | Zener Transient Voltage Suppressors |
| 1SMB20A | Central Semiconductor | SMD Transient Suppressor Single: 600W Uni-polar |
| 1SMB20A | ON Semiconductor | 600W Zener |
| 1SMB20AT3 | ON Semiconductor | 600W Zener |
| 1SMB20CA | Central Semiconductor | SMD Transient Suppressor Single: 600W Bi-polar |
| 1SMB20CA | ON Semiconductor | Zener Transient Voltage Suppressors |
| 1SMB20CAT3 | ON Semiconductor | Zener Transient Voltage Suppressors |
| 1SMB22A | Central Semiconductor | SMD Transient Suppressor Single: 600W Uni-polar |
| 1SMB22A | ON Semiconductor | 600W Zener |
| 1SMB22AT3 | ON Semiconductor | 600W Zener |
| 1SMB22CA | Central Semiconductor | SMD Transient Suppressor Single: 600W Bi-polar |
| 1SMB22CA | ON Semiconductor | Zener Transient Voltage Suppressors |
| 1SMB22CAT3 | ON Semiconductor | Zener Transient Voltage Suppressors |
| 1SMB24A | Central Semiconductor | SMD Transient Suppressor Single: 600W Uni-polar |
| 1SMB24A | ON Semiconductor | 600W Zener |
| 1SMB24AT3 | ON Semiconductor | 600W Zener |
| 1SMB24CA | Central Semiconductor | SMD Transient Suppressor Single: 600W Bi-polar |
| 1SMB24CA | ON Semiconductor | Zener Transient Voltage Suppressors |
| 1SMB24CAT3 | ON Semiconductor | Zener Transient Voltage Suppressors |