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| Part Number | 1SMA20AT3 | 1SMA20AT3G | 1SMA22AT3 | 1SMA20CAT3 | 1SMA24AT3 | 1SMA26AT3 | 1SMA28AT3 | 1SMA30AT3 | 1SMA70AT3 |
|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | onsemi | Littelfuse Inc. | onsemi | onsemi | onsemi | onsemi | onsemi | onsemi | onsemi |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
| Type | Zener | Zener | Zener | Zener | Zener | Zener | Zener | Zener | Zener |
| Unidirectional Channels | 1 | 1 | 1 | - | 1 | 1 | 1 | 1 | 1 |
| Bidirectional Channels | - | - | - | 1 | - | - | - | - | - |
| Voltage - Reverse Standoff (Typ) | 20V | 20V | 22V | 20V | 24V | 26V | 28V | 30V | 70V |
| Voltage - Breakdown (Min) | 22.2V | 22.2V | 24.4V | 22.2V | 26.7V | 28.9V | 31.1V | 33.3V | 77.8V |
| Voltage - Clamping (Max) @ Ipp | 32.4V | 32.4V | 35.5V | 32.4V | 38.9V | 42.1V | 45.4V | 48.4V | 113V |
| Current - Peak Pulse (10/1000µs) | 12.3A | 12.3A | 11.3A | 12.3A | 10.3A | 9.5A | 8.8A | 8.3A | 3.5A |
| 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 | Automotive | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose |
| Capacitance @ Frequency | 585pF @ 1MHz | 585pF @ 1MHz | 540pF @ 1MHz | 305pF @ 1MHz | 500pF @ 1MHz | 460pF @ 1MHz | 430pF @ 1MHz | 405pF @ 1MHz | 190pF @ 1MHz |
| Operating Temperature | -65°C ~ 150°C (TJ) | -65°C ~ 150°C (TJ) | -65°C ~ 150°C (TJ) | -65°C ~ 150°C (TJ) | -65°C ~ 150°C (TJ) | -65°C ~ 150°C (TJ) | -65°C ~ 150°C (TJ) | -65°C ~ 150°C (TJ) | -65°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | DO-214AC, SMA | DO-214AC, SMA | DO-214AC, SMA | DO-214AC, SMA | DO-214AC, SMA | DO-214AC, SMA | DO-214AC, SMA | DO-214AC, SMA | DO-214AC, SMA |
| Supplier Device Package | SMA | SMA | SMA | SMA | SMA | SMA | SMA | SMA | SMA |
