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| Part Number | SA18A | SA18CA | SA18AH | SA18C | SA17A | SA18 | SA180 | SA180A |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | Fairchild Semiconductor | Littelfuse Inc. | Taiwan Semiconductor Corporation | Littelfuse Inc. | Taiwan Semiconductor Corporation | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. |
| Product Status | Obsolete | Active | Active | Obsolete | Active | Obsolete | Obsolete | Active |
| Type | Zener | Zener | Zener | Zener | Zener | Zener | Zener | Zener |
| Unidirectional Channels | 1 | - | 1 | - | 1 | 1 | 1 | 1 |
| Bidirectional Channels | - | 1 | - | 1 | - | - | - | - |
| Voltage - Reverse Standoff (Typ) | 18V | 18V | 18V | 18V | 17V | 18V | 180V | 180V |
| Voltage - Breakdown (Min) | 20V | 20V | 20V | 18.95V | 18.9V | 18.95V | 194.85V | 200V |
| Voltage - Clamping (Max) @ Ipp | 29.2V | 29.2V | 39.4V | 30.66V | 27.7V | 30.66V | 303.45V | 289V |
| Current - Peak Pulse (10/1000µs) | 17.5A | 17.5A | 17.9A | 17.5A | 19A | 17.5A | 1.7A | 1.7A |
| Power - Peak Pulse | 500W | 500W | 500W | 500W | 500W | 500W | 500W | 500W |
| Power Line Protection | No | No | No | No | No | No | No | No |
| Applications | General Purpose | General Purpose | Automotive | 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) |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole |
| Package / Case | DO-204AC, DO-15, Axial | DO-204AC, DO-15, Axial | DO-204AC, DO-15, Axial | DO-204AC, DO-15, Axial | DO-204AC, DO-15, Axial | DO-204AC, DO-15, Axial | DO-204AC, DO-15, Axial | DO-204AC, DO-15, Axial |
| Supplier Device Package | DO-204AC (DO-15) | DO-204AC (DO-15) | DO-204AC (DO-15) | DO-204AC (DO-15) | DO-204AC (DO-15) | DO-204AC (DO-15) | DO-204AC (DO-15) | DO-204AC (DO-15) |
