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| PartNumber | SM8S40A-Q | SM8S40A-E3/2D | SM8S40A |
| Description | TVS Diodes / ESD Suppressors SM8S-Q Transient Voltage Suppressor Diode | ESD Suppressors / TVS Diodes RECOMMENDED ALT 78-SM8S40AHE3_A/I | |
| Manufacturer | Bourns | Vishay | |
| Product Category | TVS Diodes / ESD Suppressors | ESD Suppressors / TVS Diodes | TVS - Diodes |
| RoHS | Y | E | - |
| Series | SM8S-Q | SM8S_A | - |
| Product Type | TVS Diodes | TVS Diodes | - |
| Polarity | Unidirectional | Unidirectional | - |
| Number of Channels | 1 Channel | - | - |
| Termination Style | SMD/SMT | SMD/SMT | - |
| Breakdown Voltage | 49.1 V | 44.4 V | - |
| Working Voltage | 40 V | 40 V | - |
| Package / Case | DO-218-2 | DO-218AB-2 | - |
| Pppm Peak Pulse Power Dissipation | 6.6 kW | 6.6 kW | - |
| Minimum Operating Temperature | - 55 C | - 55 C | - |
| Maximum Operating Temperature | + 175 C | + 175 C | - |
| Qualification | AEC-Q101 | AEC-Q101 | - |
| Packaging | Reel | Reel | - |
| Brand | Bourns | Vishay Semiconductors | - |
| Factory Pack Quantity | 750 | 750 | - |
| Subcategory | TVS Diodes / ESD Suppression Diodes | TVS Diodes / ESD Suppression Diodes | - |
| Clamping Voltage | - | 64.5 V | - |
| Tradename | - | PAR | - |
| Unit Weight | - | 0.091712 oz | - |