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| Part Number | 1KSMB51 | 1KSMB51A | 1KSMB56 |
|---|---|---|---|
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. |
| Product Status | Obsolete | Active | Obsolete |
| Type | Zener | Zener | Zener |
| Unidirectional Channels | 1 | 1 | 1 |
| Bidirectional Channels | - | - | - |
| Voltage - Reverse Standoff (Typ) | 43.6V | 43.6V | 47.8V |
| Voltage - Breakdown (Min) | 45.95V | 48.5V | 50.4V |
| Voltage - Clamping (Max) @ Ipp | 73.61V | 70.1V | 80.85V |
| Current - Peak Pulse (10/1000µs) | 14.3A | 14.3A | 13A |
| Power - Peak Pulse | 1000W (1kW) | 1000W (1kW) | 1000W (1kW) |
| Power Line Protection | No | No | No |
| Applications | General Purpose | General Purpose | General Purpose |
| Capacitance @ Frequency | - | - | - |
| Operating Temperature | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | DO-214AA, SMB | DO-214AA, SMB | DO-214AA, SMB |
| Supplier Device Package | DO-214AA (SMBJ) | DO-214AA (SMBJ) | DO-214AA (SMBJ) |
