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| Part Number | SMF45A | SMF48A | SMF45CA | SMF45AH | SMF40A | SMF43A |
|---|---|---|---|---|---|---|
| Manufacturer | Littelfuse Inc. | Meritek | Meritek | Taiwan Semiconductor Corporation | Littelfuse Inc. | Meritek |
| Product Status | Active | Active | Active | Active | Active | Active |
| Type | Zener | Zener | Zener | Zener | Zener | Zener |
| Unidirectional Channels | 1 | 1 | - | 1 | 1 | 1 |
| Bidirectional Channels | - | - | 1 | - | - | - |
| Voltage - Reverse Standoff (Typ) | 45V | 48V | 45V | 45V | 40V | 43V |
| Voltage - Breakdown (Min) | 50V | 53.3V | 50V | 50V | 44.4V | 47.8V |
| Voltage - Clamping (Max) @ Ipp | 72.7V | 77.4V | 72.7V | 72.7V | 64.5V | 69.4V |
| Current - Peak Pulse (10/1000µs) | 2.8A | 2.58A | 2.75A | 2.8A | 3.1A | 2.88A |
| Power - Peak Pulse | 200W | 200W | 200W | 200W | 200W | 200W |
| Power Line Protection | No | - | - | No | No | - |
| Applications | General Purpose | General Purpose | General Purpose | Automotive | General Purpose | General Purpose |
| Capacitance @ Frequency | - | - | - | - | - | - |
| Operating Temperature | -55°C ~ 150°C (TJ) | -55°C ~ 150°C | -55°C ~ 150°C | -55°C ~ 175°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | SOD-123F | SOD-123FL | SOD-123FL | SOD-123W | SOD-123F | SOD-123FL |
| Supplier Device Package | SOD-123F | - | - | SOD-123W | SOD-123F | - |
