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| PartNumber | 1KSMB20A | 1KSMB20A R4 | 1KSMB20A M4G |
| Description | TVS Diodes / ESD Suppressors 20V 1KW 5% BiDirectional | TVS Diodes / ESD Suppressors 1000W, 20V, 5% UNIDIRECTIONAL, TVS | TVS Diodes / ESD Suppressors 1000W, 20V 5% Unidirectional, TVS |
| Manufacturer | Littelfuse | Taiwan Semiconductor | Taiwan Semiconductor |
| Product Category | TVS Diodes / ESD Suppressors | TVS Diodes / ESD Suppressors | TVS Diodes / ESD Suppressors |
| RoHS | Y | Y | - |
| Series | 1KSMB | 1KSMB | 1KSMB20A |
| Product Type | TVS Diodes | TVS Diodes | TVS Diodes |
| Vesd Voltage ESD Contact | - | - | - |
| Vesd Voltage ESD Air Gap | - | - | - |
| Polarity | Unidirectional | - | Unidirectional |
| Termination Style | SMD/SMT | - | SMD/SMT |
| Breakdown Voltage | 21 V | - | 19 V |
| Working Voltage | 17.1 V | - | 17.1 V |
| Clamping Voltage | 27.7 V | - | 27.7 V |
| Ipp Peak Pulse Current | 36.1 A | - | 36.1 A |
| Package / Case | DO-214AA-2 (SMB) | DO-214AA-2 (SMB) | DO-214AA-2 |
| Pppm Peak Pulse Power Dissipation | 1 kW | - | 1000 W |
| Minimum Operating Temperature | - 65 C | - | - 55 C |
| Maximum Operating Temperature | + 150 C | - | + 175 C |
| Packaging | Reel | Reel | - |
| Brand | Littelfuse | Taiwan Semiconductor | Taiwan Semiconductor |
| Factory Pack Quantity | 3000 | 3000 | - |
| Subcategory | TVS Diodes / ESD Suppression Diodes | TVS Diodes / ESD Suppression Diodes | TVS Diodes / ESD Suppression Diodes |
| Unit Weight | 0.003280 oz | - | - |
| Number of Channels | - | - | 1 Channel |
| Cd Diode Capacitance | - | - | - |