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| Part Number | 1KSMB51A | 1KSMB56A | 1KSMB51CA | 1KSMB91A | 1KSMB51AH | 1KSMB51 |
|---|---|---|---|---|---|---|
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Taiwan Semiconductor Corporation | Littelfuse Inc. |
| Product Status | Active | Active | Active | Active | Active | Obsolete |
| Type | Zener | Zener | Zener | Zener | Zener | Zener |
| Unidirectional Channels | 1 | 1 | - | 1 | 1 | 1 |
| Bidirectional Channels | - | - | 1 | - | - | - |
| Voltage - Reverse Standoff (Typ) | 43.6V | 47.8V | 43.6V | 77.8V | 43.6V | 43.6V |
| Voltage - Breakdown (Min) | 48.5V | 53.2V | 48.5V | 86.5V | 48.5V | 45.95V |
| Voltage - Clamping (Max) @ Ipp | 70.1V | 77V | 70.1V | 125V | 70.1V | 73.61V |
| Current - Peak Pulse (10/1000µs) | 14.3A | 13A | 14.3A | 8A | 14.3A | 14.3A |
| Power - Peak Pulse | 1000W (1kW) | 1000W (1kW) | 1000W (1kW) | 1000W (1kW) | 1000W (1kW) | 1000W (1kW) |
| Power Line Protection | No | No | No | No | No | No |
| Applications | General Purpose | General Purpose | General Purpose | General Purpose | Automotive | General Purpose |
| Capacitance @ Frequency | - | - | - | - | - | - |
| Operating Temperature | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 175°C (TJ) | -55°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | DO-214AA, SMB | DO-214AA, SMB | DO-214AA, SMB | DO-214AA, SMB | DO-214AA, SMB | DO-214AA, SMB |
| Supplier Device Package | DO-214AA (SMBJ) | DO-214AA (SMBJ) | DO-214AA (SMBJ) | DO-214AA (SMBJ) | DO-214AA (SMB) | DO-214AA (SMBJ) |
