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| Part Number | SMF4L48A | SMF4L58A | SMF4L48CA | SMF4L78A | SMF4L18A | SMF4L28A | SMF4L40A | SMF4L43A | SMF4L45A |
|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. |
| Product Status | Active | Active | Active | Active | Active | Active | Active | Active | Active |
| Type | Zener | Zener | Zener | Zener | Zener | Zener | Zener | Zener | Zener |
| Unidirectional Channels | 1 | 1 | - | 1 | 1 | 1 | 1 | 1 | 1 |
| Bidirectional Channels | - | - | 1 | - | - | - | - | - | - |
| Voltage - Reverse Standoff (Typ) | 48V | 58V | 48V | 78V | 18V | 28V | 40V | 43V | 45V |
| Voltage - Breakdown (Min) | 53.3V | 64.4V | 53.3V | 86.7V | 20V | 31.1V | 44.4V | 47.8V | 50V |
| Voltage - Clamping (Max) @ Ipp | 77.4V | 93.6V | 77.4V | 126V | 29.2V | 45.4V | 64.5V | 69.4V | 72.7V |
| Current - Peak Pulse (10/1000µs) | 5.2A | 4.3A | 5.2A | 3.2A | 13.7A | 8.8A | 6.2A | 5.8A | 5.5A |
| Power - Peak Pulse | 400W | 400W | 400W | 400W | 400W | 400W | 400W | 400W | 400W |
| Power Line Protection | No | No | No | No | No | No | No | No | No |
| Applications | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose |
| Capacitance @ Frequency | - | - | - | - | - | - | - | - | - |
| Operating Temperature | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -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 | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | SOD-123F | SOD-123F | SOD-123F | SOD-123F | SOD-123F | SOD-123F | SOD-123F | SOD-123F | SOD-123F |
| Supplier Device Package | SOD-123F | SOD-123F | SOD-123F | SOD-123F | SOD-123F | SOD-123F | SOD-123F | SOD-123F | SOD-123F |
