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| Part Number | 1.5KE51A | 1.5KE56A | 1.5KE51CA | 1.5KE51AH | 1.5KE51 | 1.5KE510 | 1.5KE510A |
|---|---|---|---|---|---|---|---|
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Taiwan Semiconductor Corporation | Diotec Semiconductor | Littelfuse Inc. | Littelfuse Inc. |
| Product Status | Active | Active | Active | Active | Active | Obsolete | Active |
| Type | Zener | Zener | Zener | Zener | Zener | Zener | Zener |
| Unidirectional Channels | 1 | 1 | - | 1 | 1 | 1 | 1 |
| Bidirectional Channels | - | - | 1 | - | - | - | - |
| Voltage - Reverse Standoff (Typ) | 43.6V | 47.8V | 43.6V | 43.6V | 41.3V | 434V | 434V |
| Voltage - Breakdown (Min) | 48.5V | 53.2V | 48.5V | 48.5V | 45.9V | 459V | 485V |
| Voltage - Clamping (Max) @ Ipp | 70.1V | 77V | 70.1V | 70.1V | 73.5V | 732.9V | 698V |
| Current - Peak Pulse (10/1000µs) | 21.7A | 19.7A | 21.7A | 22A | 21A | 2.1A | 2.1A |
| Power - Peak Pulse | 1500W (1.5kW) | 1500W (1.5kW) | 1500W (1.5kW) | 1500W (1.5kW) | 1500W (1.5kW) | 1500W (1.5kW) | 1500W (1.5kW) |
| Power Line Protection | No | No | No | No | No | No | No |
| Applications | General Purpose | General Purpose | General Purpose | Automotive | General Purpose | General Purpose | General Purpose |
| Capacitance @ Frequency | - | - | - | - | - | - | - |
| Operating Temperature | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) | -50°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole |
| Package / Case | DO-201AA, DO-27, Axial | DO-201AA, DO-27, Axial | DO-201AA, DO-27, Axial | DO-201AA, DO-27, Axial | Axial | DO-201AA, DO-27, Axial | DO-201AA, DO-27, Axial |
| Supplier Device Package | DO-201 | DO-201 | DO-201 | DO-201 | Axial | DO-201 | DO-201 |
