| Part Number | SM4T30CAY | SM4T50CAY | 
|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | 
| Category | TVS - Diodes | TVS - Diodes | 
|   |   | |
| Product Status | Active | Active | 
| Type | Zener | Zener | 
| Unidirectional Channels | - | - | 
| Bidirectional Channels | 1 | 1 | 
| Voltage - Reverse Standoff (Typ) | 26V | 43V | 
| Voltage - Breakdown (Min) | 28.9V | 47.8V | 
| Voltage - Clamping (Max) @ Ipp | 53.5V | 91V | 
| Current - Peak Pulse (10/1000µs) | 43A (8/20µs) | 25A (8/20µs) | 
| Power - Peak Pulse | 400W | 400W | 
| Power Line Protection | No | No | 
| Applications | Automotive | Automotive | 
| Capacitance @ Frequency | - | - | 
| Operating Temperature | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | DO-214AC, SMA | DO-214AC, SMA | 
| Supplier Device Package | SMA (DO-214AC) | SMA (DO-214AC) |