| PartNumber | SMF4L20A-Q | SMF4L20A | SMF4L200A |
| Description | TVS Diodes / ESD Suppressors TVS VWM 20V 400W UNI SMF | TVS Diodes / ESD Suppressors 400W 20V 5% Uni-directional | TVS Diodes / ESD Suppressors TVS SMF4L 200V Uni, 7'' TR |
| Manufacturer | Bourns | Littelfuse | Littelfuse |
| Product Category | TVS Diodes / ESD Suppressors | TVS Diodes / ESD Suppressors | TVS Diodes / ESD Suppressors |
| RoHS | Y | Y | - |
| Series | SMF4L-Q | SMF4L | SMF4L |
| Product Type | TVS Diodes | TVS Diodes | - |
| Polarity | Unidirectional | Unidirectional | - |
| Number of Channels | 1 Channel | - | - |
| Termination Style | SMD/SMT | SMD/SMT | - |
| Breakdown Voltage | 24.5 V | 24.5 V | 247 V |
| Working Voltage | 20 V | 20 V | - |
| Package / Case | SOD-123FL | SOD-123FL-2 | - |
| Pppm Peak Pulse Power Dissipation | 400 W | 400 W | 400 W |
| Minimum Operating Temperature | - 55 C | - 55 C | - |
| Maximum Operating Temperature | + 150 C | + 150 C | + 150 C |
| Qualification | AEC-Q101 | - | - |
| Packaging | Reel | Reel | - |
| Brand | Bourns | Littelfuse | Littelfuse |
| Factory Pack Quantity | 2500 | 3000 | - |
| Subcategory | TVS Diodes / ESD Suppression Diodes | TVS Diodes / ESD Suppression Diodes | TVS Diodes / ESD Suppression Diodes |
| Vesd Voltage ESD Contact | - | - | - |
| Vesd Voltage ESD Air Gap | - | - | - |
| Clamping Voltage | - | 32.4 V | 324 V |
| Ipp Peak Pulse Current | - | 12.4 A | 600 mA |