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| PartNumber | 1N4728A-TAP | 1N4728ATK | 1N4728ATA |
| Description | DIODE ZENER 3.3V 1.3W DO41 | DIODE ZENER 3.3V 1W DO41 | |
| Manufacturer | Vishay Semiconductor Diodes Division | - | - |
| Product Category | Diodes - Zener - Single | - | - |
| Series | - | - | - |
| Packaging | Tape & Box (TB) Alternate Packaging | - | - |
| Unit Weight | 0.010935 oz | - | - |
| Mounting Style | Through Hole | - | - |
| Height | 2.6 mm | - | - |
| Length | 4.1 mm | - | - |
| Width | 2.6 mm | - | - |
| Package Case | DO-204AL, DO-41, Axial | - | - |
| Operating Temperature | 175°C | - | - |
| Mounting Type | Through Hole | - | - |
| Supplier Device Package | DO-41 | - | - |
| Configuration | Single | - | - |
| Tolerance | ±5% | - | - |
| Power Max | 1.3W | - | - |
| Voltage Zener Nom Vz | 3.3V | - | - |
| Impedance Max Zzt | 10 Ohm | - | - |
| Current Reverse Leakage Vr | 100μA @ 1V | - | - |
| Voltage Forward Vf Max If | 1.2V @ 200mA | - | - |
| Pd Power Dissipation | 1.3 W | - | - |
| Maximum Operating Temperature | + 175 C | - | - |
| Minimum Operating Temperature | - 65 C | - | - |
| Vz Zener Voltage | 3.3 V | - | - |
| Voltage Tolerance | 5 % | - | - |
| Zener Current | 276 mA | - | - |
| Zz Zener Impedance | 10 Ohms | - | - |
| Ir Reverse Current | 100 uA | - | - |