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| Part Number | 1.5KE540A | 1.5KE550A | 1.5KE540CA | 1.5KE540C | 1.5KE510A | 1.5KE530A | 1.5KE540 |
|---|---|---|---|---|---|---|---|
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. |
| Product Status | Active | Active | Active | Obsolete | Active | Active | Obsolete |
| Type | Zener | Zener | Zener | Zener | Zener | Zener | Zener |
| Unidirectional Channels | 1 | 1 | - | - | 1 | 1 | 1 |
| Bidirectional Channels | - | - | 1 | 1 | - | - | - |
| Voltage - Reverse Standoff (Typ) | 460V | 468V | 460V | 486V | 434V | 451V | 486V |
| Voltage - Breakdown (Min) | 513V | 522.5V | 513V | 486V | 485V | 503.5V | 486V |
| Voltage - Clamping (Max) @ Ipp | 740V | 760V | 740V | 777V | 698V | 725V | 777V |
| Current - Peak Pulse (10/1000µs) | 2A | 2A | 2A | 2A | 2.1A | 2.1A | 2A |
| 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 | General Purpose | 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) | -55°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 | DO-201AA, DO-27, Axial | DO-201AA, DO-27, Axial | DO-201AA, DO-27, Axial |
| Supplier Device Package | DO-201 | DO-201 | DO-201 | DO-201 | DO-201 | DO-201 | DO-201 |
