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| Part Number | 1N4728ATR | 1N4729ATR | 1N4728AUR | 1N4728A TR | 1N4728A-TR |
|---|---|---|---|---|---|
| Manufacturer | onsemi | Fairchild Semiconductor | Microchip Technology | Central Semiconductor Corp | Vishay General Semiconductor - Diodes Division |
| Product Status | Active | Obsolete | Active | Obsolete | Active |
| Voltage - Zener (Nom) (Vz) | 3.3 V | 3.6 V | 3.3 V | 3.3 V | 3.3 V |
| Tolerance | ±5% | ±5% | ±5% | ±5% | ±5% |
| Power - Max | 1 W | 1 W | 1 W | 1 W | 1.3 W |
| Impedance (Max) (Zzt) | 10 Ohms | 10 Ohms | 10 Ohms | 10 Ohms | 10 Ohms |
| Current - Reverse Leakage @ Vr | 100 µA @ 1 V | 100 µA @ 1 V | 100 µA @ 1 V | 100 µA @ 1 V | 100 µA @ 1 V |
| Voltage - Forward (Vf) (Max) @ If | - | - | 1.2 V @ 200 mA | 1.2 V @ 200 mA | 1.2 V @ 200 mA |
| Operating Temperature | -65°C ~ 200°C | -65°C ~ 200°C | -65°C ~ 175°C | -65°C ~ 200°C | 175°C (TJ) |
| Mounting Type | Through Hole | Through Hole | Surface Mount | Through Hole | Through Hole |
| Package / Case | DO-204AL, DO-41, Axial | DO-204AL, DO-41, Axial | DO-213AB, MELF | DO-204AL, DO-41, Axial | DO-204AL, DO-41, Axial |
| Supplier Device Package | DO-41 | DO-204AL (DO-41) | DO-213AB | DO-41 | DO-204AL (DO-41) |
