| Part Numbers | Manufacturer Name | Datasheet | Voltage - Clamping | Voltage - Off State | Voltage - On State | Unidirectional Channels | Bidirectional Channels | Voltage - Reverse Standoff (Typ) | Voltage - Breakdown (Min) | Current - Peak Pulse | Power - Peak Pulse | Power Line Protection | Capacitance @ Frequency | Operating Temperature | Mounting Type | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P4SMA550A | LITTELFUSE INC | 760V | - | - | 1 | - | 495V | 522.5V | 500mA | 400W | No | - | -55°C ~ 150°C | Surface Mount | DO-214AC, SMA | |
| P4SMA550 | LITTELFUSE INC | 798V | - | - | 1 | - | 495V | 496.38V | 500mA | 400W | No | - | -55°C ~ 150°C | Surface Mount | DO-214AC, SMA | |
| P4SMA550CA | LITTELFUSE INC | 760V | - | - | - | 1 | 495V | 522.5V | 500mA | 400W | No | - | -55°C ~ 150°C | Surface Mount | DO-214AC, SMA | |
| P4SMA540 | LITTELFUSE INC | 777V | - | - | 1 | - | 486V | 487.35V | 500mA | 400W | No | - | -55°C ~ 150°C | Surface Mount | DO-214AC, SMA | |
| P4SMA540A | LITTELFUSE INC | 740V | - | - | 1 | - | 486V | 513V | 500mA | 400W | No | - | -55°C ~ 150°C | Surface Mount | DO-214AC, SMA | |
| P4SMA540C | LITTELFUSE INC | 777V | - | - | - | 1 | 486V | 487.35V | 500mA | 400W | No | - | -55°C ~ 150°C | Surface Mount | DO-214AC, SMA | |
| P4SMA550C | LITTELFUSE INC | 798V | - | - | - | 1 | 495V | 496.38V | 500mA | 400W | No | - | -55°C ~ 150°C | Surface Mount | DO-214AC, SMA | |
| P4SMA540CA | LITTELFUSE INC | 740V | - | - | - | 1 | 486V | 513V | 500mA | 400W | No | - | -55°C ~ 150°C | Surface Mount | DO-214AC, SMA | |
| P4SMA440A-E3/5A | VISHAY SEMICONDUCTORS | 602V | - | - | 1 | - | 376V | 418V | 500mA | 300W | No | - | -65°C ~ 150°C | Surface Mount | DO-214AC, SMA | |
| P4SMA440AHE3_ALL | VISHAY SEMICONDUCTORS | 602V | - | - | 1 | - | 376V | 418V | 500mA | 300W | No | - | -65°C ~ 150°C | Surface Mount | DO-214AC, SMA |
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