| Manufacturer | Part Number | Description |
|---|---|---|
| 1SMA33AT3G | 400 Watt Peak Power Zener Transient Voltage Suppressors | |
Littelfuse
| SZ1SMA33AT3G | TVS Diodes |
Motorola Semiconductor (now NXP Semiconductors)
| 1SMA33AT3 | Zener Transient Voltage Suppressors |
| 1SMA33AT3 | 400 Watt Peak Power Zener Transient Voltage Suppressors |