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| Part Number | SM4T68CAY | SM4T18CAY | SM4T28CAY | SM4T68AY |
|---|---|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Status | Active | Active | Active | Active |
| Type | Zener | Zener | Zener | Zener |
| Unidirectional Channels | - | - | - | 1 |
| Bidirectional Channels | 1 | 1 | 1 | - |
| Voltage - Reverse Standoff (Typ) | 58V | 15V | 24V | 58V |
| Voltage - Breakdown (Min) | 64.4V | 16.7V | 26.7V | 64.4V |
| Voltage - Clamping (Max) @ Ipp | 121V | 32.5V | 50V | 121V |
| Current - Peak Pulse (10/1000µs) | 19A (8/20µs) | 71A (8/20µs) | 46A (8/20µs) | 19A (8/20µs) |
| Power - Peak Pulse | 400W | 400W | 400W | 400W |
| Power Line Protection | No | No | No | No |
| Applications | Automotive | Automotive | Automotive | Automotive |
| Capacitance @ Frequency | - | - | - | - |
| Operating Temperature | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | DO-214AC, SMA | DO-214AC, SMA | DO-214AC, SMA | DO-214AC, SMA |
| Supplier Device Package | SMA (DO-214AC) | SMA (DO-214AC) | SMA (DO-214AC) | SMA (DO-214AC) |
