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| PartNumber | P4SMA400A | P4SMA400 | P4SMA400A R2 |
| Description | TVS Diodes / ESD Suppressors 400V 400W UniDir | TVS Diodes / ESD Suppressors 342V 400W 10% Uni-directional | TVS Diodes - Transient Voltage Suppressors 400W 400V 5% UNIDIR TRANSZORB-TVS |
| Manufacturer | Bourns | Littelfuse | Taiwan Semiconductor |
| Product Category | TVS Diodes / ESD Suppressors | TVS Diodes / ESD Suppressors | TVS - Diodes |
| RoHS | Y | Y | - |
| Series | P4SMA | P4SMA | - |
| Product Type | TVS Diodes | TVS Diodes | - |
| Vesd Voltage ESD Contact | - | - | - |
| Vesd Voltage ESD Air Gap | - | - | - |
| Polarity | Unidirectional | Unidirectional | - |
| Number of Channels | 1 Channel | - | - |
| Termination Style | SMD/SMT | SMD/SMT | - |
| Breakdown Voltage | 420 V | 440 V | - |
| Working Voltage | 342 V | 342 V | - |
| Clamping Voltage | - | 575.4 V | - |
| Cd Diode Capacitance | - | - | - |
| Package / Case | DO-214AC-2 (SMA) | DO-214AC-2 (SMA) | - |
| Minimum Operating Temperature | - 55 C | - 65 C | - |
| Maximum Operating Temperature | + 150 C | + 150 C | - |
| Packaging | Reel | Reel | Reel |
| Brand | Bourns | Littelfuse | - |
| Factory Pack Quantity | 5000 | 5000 | - |
| Subcategory | TVS Diodes / ESD Suppression Diodes | TVS Diodes / ESD Suppression Diodes | - |
| Vf Forward Voltage | 5 V | - | - |
| Unit Weight | 0.035274 oz | 0.002152 oz | - |
| Ipp Peak Pulse Current | - | 800 mA | - |
| Pppm Peak Pulse Power Dissipation | - | 400 W | - |
| Mounting Style | - | - | SMD/SMT |
| Package Case | - | - | DO-214AC-2 |