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| PartNumber | P4KE51 | P4KE51-E3/54 | P4KE51-B |
| Description | TVS Diodes / ESD Suppressors 43.6Vso 48.5Vbr | ESD Suppressors / TVS Diodes RECOMMENDED ALT 625-P4KE51A-E3/73 | ESD Suppressors / TVS Diodes TVS DIODE AXIAL LEAD |
| Manufacturer | Littelfuse | Vishay | Littelfuse |
| Product Category | TVS Diodes / ESD Suppressors | ESD Suppressors / TVS Diodes | ESD Suppressors / TVS Diodes |
| RoHS | Y | E | Y |
| Series | P4KE | P4KE | P4KE |
| Product Type | TVS Diodes | TVS Diodes | TVS Diodes |
| Vesd Voltage ESD Contact | - | - | - |
| Vesd Voltage ESD Air Gap | - | - | - |
| Polarity | Unidirectional | Unidirectional | Unidirectional |
| Termination Style | Axial | Axial | Axial |
| Breakdown Voltage | 56.155 V | 45.9 V | 56.155 V |
| Working Voltage | 43.6 V | 41.3 V | 43.6 V |
| Clamping Voltage | 73.605 V | 73.5 V | 73.605 V |
| Ipp Peak Pulse Current | 5.8 A | - | 5.8 A |
| Package / Case | DO-41-2 | DO-204AL-2 (DO-41) | DO-41-2 |
| Pppm Peak Pulse Power Dissipation | 400 W | 400 W | 400 W |
| Minimum Operating Temperature | - 55 C | - 55 C | - 55 C |
| Maximum Operating Temperature | + 175 C | + 175 C | + 175 C |
| Packaging | Reel | Reel | Bulk |
| Brand | Littelfuse | Vishay Semiconductors | Littelfuse |
| Factory Pack Quantity | 5000 | 5500 | 500 |
| Subcategory | TVS Diodes / ESD Suppression Diodes | TVS Diodes / ESD Suppression Diodes | TVS Diodes / ESD Suppression Diodes |
| Unit Weight | 0.010582 oz | 0.012346 oz | 0.010582 oz |