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| Part Number | SMA4F28AY | SMA4F48AY | SMA4F58AY | SMA4F18AY | SMA4F20AY | SMA4F22AY | SMA4F23AY | SMA4F24AY | SMA4F26AY | SMA4F28A |
|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Status | Active | Active | Active | Active | Active | Active | Active | Active | Active | Active |
| Type | Zener | Zener | Zener | Zener | Zener | Zener | Zener | Zener | Zener | Zener |
| Unidirectional Channels | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Bidirectional Channels | - | - | - | - | - | - | - | - | - | - |
| Voltage - Reverse Standoff (Typ) | 28V | 48V (Max) | 58V (Max) | 18V | 20V | 22V | 23V | 24V | 26V | 28V |
| Voltage - Breakdown (Min) | 31.1V | 53.2V | 64.6V | 20V | 22.2V | 24.4V | 25.7V | 26.7V | 28.9V | 31.1V |
| Voltage - Clamping (Max) @ Ipp | 45.4V | 100V | 121V | 29.2V | 32.4V | 35.5V | 37.8V | 38.9V | 42.1V | 59V |
| Current - Peak Pulse (10/1000µs) | 8.8A | 23A (8/20µs) | 19A (8/20µs) | 13.7A | 12.3A | 11.2A | 10.6A | 10.3A | 9.5A | 8.8A |
| Power - Peak Pulse | 400W | 400W | 400W | 400W | 400W | 400W | 400W | 400W | 400W | 400W |
| Power Line Protection | No | No | No | No | No | No | No | No | No | No |
| Applications | Automotive | Automotive | Automotive | Automotive | Automotive | Automotive | Automotive | Automotive | Automotive | General Purpose |
| Capacitance @ Frequency | - | - | - | - | - | - | - | - | - | - |
| Operating Temperature | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | DO-221AC, SMA Flat Leads | DO-221AC, SMA Flat Leads | DO-221AC, SMA Flat Leads | DO-221AC, SMA Flat Leads | DO-221AC, SMA Flat Leads | DO-221AC, SMA Flat Leads | DO-221AC, SMA Flat Leads | DO-221AC, SMA Flat Leads | DO-221AC, SMA Flat Leads | DO-221AC, SMA Flat Leads |
| Supplier Device Package | SMAflat | SMAflat | SMAflat | SMAflat | SMAflat | SMAflat | SMAflat | SMAflat | SMAflat | SMAflat |
