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| PartNumber | SA18A | SA18A A0G | SA18A SA18CA |
| Description | TVS Diodes / ESD Suppressors SA18A Uni-Directional | TVS Diodes / ESD Suppressors 500W, 21.1V 5% Unidirectional, TVS | |
| Manufacturer | Littelfuse | Taiwan Semiconductor | - |
| Product Category | TVS Diodes / ESD Suppressors | TVS Diodes / ESD Suppressors | - |
| RoHS | Y | - | - |
| Series | SA | SA18A | - |
| Product Type | TVS Diodes | TVS Diodes | - |
| Vesd Voltage ESD Contact | - | - | - |
| Vesd Voltage ESD Air Gap | - | - | - |
| Polarity | Unidirectional | Unidirectional | - |
| Termination Style | Axial | Axial | - |
| Breakdown Voltage | 22.1 V | 20 V | - |
| Working Voltage | 18 V | 18 V | - |
| Clamping Voltage | 29.2 V | 39.4 V | - |
| Ipp Peak Pulse Current | 17.5 A | 17.9 A | - |
| Package / Case | DO-204AC-2 | DO-204AC-2 | - |
| Pppm Peak Pulse Power Dissipation | 500 W | 500 W | - |
| Minimum Operating Temperature | - 55 C | - 55 C | - |
| Maximum Operating Temperature | + 175 C | + 175 C | - |
| Packaging | Reel | - | - |
| Brand | Littelfuse | Taiwan Semiconductor | - |
| Factory Pack Quantity | 4000 | - | - |
| Subcategory | TVS Diodes / ESD Suppression Diodes | TVS Diodes / ESD Suppression Diodes | - |
| Unit Weight | 0.014110 oz | - | - |
| Number of Channels | - | 1 Channel | - |
| Cd Diode Capacitance | - | - | - |