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| Part Number | P4SMA540C | P4SMA540CA | P4SMA550C | P4SMA510C | P4SMA530C | P4SMA540 | P4SMA540A |
|---|---|---|---|---|---|---|---|
| Manufacturer | Littelfuse Inc. | Bourns Inc. | Diotec Semiconductor | Littelfuse Inc. | Diotec Semiconductor | Littelfuse Inc. | Littelfuse Inc. |
| Product Status | Obsolete | Active | Active | Obsolete | Active | Obsolete | Active |
| Type | Zener | Zener | Zener | Zener | Zener | Zener | Zener |
| Unidirectional Channels | - | - | - | - | - | 1 | 1 |
| Bidirectional Channels | 1 | 1 | 1 | 1 | 1 | - | - |
| Voltage - Reverse Standoff (Typ) | 486V | 486V | 445V | 434V | 429V | 486V | 486V |
| Voltage - Breakdown (Min) | 487.35V | 513V | 495V | 460.75V | 477V | 487.35V | 513V |
| Voltage - Clamping (Max) @ Ipp | 777V | 740V | 793V | 732.9V | 764V | 777V | 740V |
| Current - Peak Pulse (10/1000µs) | 500mA | 500mA | 500mA | 600mA | 520mA | 500mA | 500mA |
| Power - Peak Pulse | 400W | 400W | 400W | 400W | 400W | 400W | 400W |
| Power Line Protection | No | No | No | No | No | No | No |
| Applications | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose |
| Capacitance @ Frequency | - | - | - | - | - | - | - |
| Operating Temperature | -65°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -50°C ~ 150°C (TJ) | -65°C ~ 150°C (TJ) | -50°C ~ 150°C (TJ) | -65°C ~ 150°C (TJ) | -65°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | DO-214AC, SMA | DO-214AC, SMA | DO-214AC, SMA | DO-214AC, SMA | DO-214AC, SMA | DO-214AC, SMA | DO-214AC, SMA |
| Supplier Device Package | DO-214AC (SMA) | DO-214AC (SMA) | DO-214AC, SMA | DO-214AC (SMA) | DO-214AC, SMA | DO-214AC (SMA) | DO-214AC (SMA) |
