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| Part Number | P4KE20A-B | P4KE20A-G | P4KE22A-B | P4KE20CA-B | P4KE220A-B | P4KE20C-B | P4KE20-B | P4KE200-B | P4KE200A-B |
|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Littelfuse Inc. | Comchip Technology | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. |
| Product Status | Active | Active | Active | Active | Active | Obsolete | Obsolete | Obsolete | Active |
| Type | Zener | Zener | Zener | Zener | Zener | Zener | Zener | Zener | Zener |
| Unidirectional Channels | 1 | 1 | 1 | - | 1 | - | 1 | 1 | 1 |
| Bidirectional Channels | - | - | - | 1 | - | 1 | - | - | - |
| Voltage - Reverse Standoff (Typ) | 17.1V | 17.1V | 18.8V | 17.1V | 185V | 17.1V | 17.1V | 171V | 171V |
| Voltage - Breakdown (Min) | 19V | 19V | 20.9V | 19V | 209V | 18V | 18V | 180V | 190V |
| Voltage - Clamping (Max) @ Ipp | 27.7V | 27.7V | 30.6V | 27.7V | 328V | 29.09V | 29.09V | 287.7V | 274V |
| Current - Peak Pulse (10/1000µs) | 14.8A | 14.44A | 13.4A | 14.8A | 1.3A | 14.8A | 14.8A | 1.5A | 1.5A |
| Power - Peak Pulse | 400W | 400W | 400W | 400W | 400W | 400W | 400W | 400W | 400W |
| Power Line Protection | 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 |
| Capacitance @ Frequency | - | - | - | - | - | - | - | - | - |
| Operating Temperature | -55°C ~ 175°C (TJ) | -55°C ~ 150°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 |
| Package / Case | DO-204AL, DO-41, Axial | DO-204AL, DO-41, Axial | DO-204AL, DO-41, Axial | DO-204AL, DO-41, Axial | DO-204AL, DO-41, Axial | DO-204AL, DO-41, Axial | DO-204AL, DO-41, Axial | DO-204AL, DO-41, Axial | DO-204AL, DO-41, Axial |
| Supplier Device Package | DO-204AL (DO-41) | DO-41 | DO-204AL (DO-41) | DO-204AL (DO-41) | DO-204AL (DO-41) | DO-204AL (DO-41) | DO-204AL (DO-41) | DO-204AL (DO-41) | DO-204AL (DO-41) |
