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| Part Number | 20KPA20A-B | 20KPA30A-B | 20KPA28A-B | 20KPA26A-B | 20KPA24A-B | 20KPA280A-B | 20KPA240A-B | 20KPA20CA-B | 20KPA20C-B | 20KPA120A-B | 20KPA20-B | 20KPA204-B | 20KPA204A-B |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. |
| Product Status | Active | Active | Active | Active | Active | Active | Active | Active | Obsolete | Active | Obsolete | Obsolete | Active |
| Type | Zener | Zener | Zener | Zener | Zener | Zener | Zener | Zener | Zener | Zener | Zener | Zener | Zener |
| Unidirectional Channels | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | - | 1 | 1 | 1 | 1 |
| Bidirectional Channels | - | - | - | - | - | - | - | 1 | 1 | - | - | - | - |
| Voltage - Reverse Standoff (Typ) | 20V | 30V | 28V | 26V | 24V | 280V | 240V | 20V | 20V | 120V | 20V | 204V | 204V |
| Voltage - Breakdown (Min) | 22.34V | 33.51V | 31.28V | 29.04V | 26.81V | 312.8V | 268.1V | 22.34V | 21.11V | 134V | 21.11V | 215.37V | 227.9V |
| Voltage - Clamping (Max) @ Ipp | 36.8V | 51.5V | 48V | 44.7V | 41.2V | 451V | 387V | 36.8V | 38.64V | 194V | 38.64V | 345.45V | 329V |
| Current - Peak Pulse (10/1000µs) | 548.9A | 392.2A | 420.8A | 451.9A | 490.3A | 44.8A | 52.2A | 548.9A | 548.9A | 104.1A | 548.9A | 61.4A | 61.4A |
| Power - Peak Pulse | 20000W (20kW) | 20000W (20kW) | 20000W (20kW) | 20000W (20kW) | 20000W (20kW) | 20000W (20kW) | 20000W (20kW) | 20000W (20kW) | 20000W (20kW) | 20000W (20kW) | 20000W (20kW) | 20000W (20kW) | 20000W (20kW) |
| Power Line Protection | No | No | No | No | No | No | No | No | No | No | No | No | No |
| Applications | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | 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) | -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 | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole |
| Package / Case | P600, Axial | P600, Axial | P600, Axial | P600, Axial | P600, Axial | P600, Axial | P600, Axial | P600, Axial | P600, Axial | P600, Axial | P600, Axial | P600, Axial | P600, Axial |
| Supplier Device Package | P600 | P600 | P600 | P600 | P600 | P600 | P600 | P600 | P600 | P600 | P600 | P600 | P600 |
