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| PartNumber | 1N4477 | 1N4477 BK | 1N4477 TR |
| Description | Zener Diodes Z MET 33V | Zener Diodes 33Vz 25 Zzt Ohm 26.4 Vr 43 mA 1.5pD | Zener Diodes 33Vz 25 Zzt Ohm 26.4 Vr 43 mA 1.5pD |
| Manufacturer | Semtech | Central Semiconductor | Central Semiconductor |
| Product Category | Zener Diodes | Zener Diodes | Zener Diodes |
| Vz Zener Voltage | 33 V | 33 V | 33 V |
| Mounting Style | Axial | Through Hole | Through Hole |
| Package / Case | DO-41-2 | DO-41 | DO-41 |
| Voltage Temperature Coefficient | 0.092 %/C | - | - |
| Zener Current | 43 mA | 0.05 uA | 0.05 uA |
| Zz Zener Impedance | 25 Ohms | 25 Ohms | 25 Ohms |
| Minimum Operating Temperature | - 55 C | - 65 C | - 65 C |
| Maximum Operating Temperature | + 175 C | + 200 C | + 200 C |
| Configuration | Single | Single | Single |
| Series | 1N447 | - | - |
| Brand | Semtech | Central Semiconductor | Central Semiconductor |
| Voltage Regulation Accuracy | 1.5 V | - | - |
| Ir Reverse Current | 2 uA | 0.05 uA | 0.05 uA |
| Product Type | Zener Diodes | Zener Diodes | Zener Diodes |
| Factory Pack Quantity | 1 | 2000 | 5000 |
| Subcategory | Diodes & Rectifiers | Diodes & Rectifiers | Diodes & Rectifiers |
| RoHS | - | Y | Y |
| Pd Power Dissipation | - | 1.5 W | 1.5 W |
| Voltage Tolerance | - | 5 % | 5 % |
| Test Current | - | 7.5 mA | 7.5 mA |
| Packaging | - | Bulk | Reel |
| Diameter | - | 2.72 mm | 2.72 mm |
| Length | - | 5.21 mm | 5.21 mm |
| Part # Aliases | - | 1N4477 BK PBFREE | 1N4477 PBFREE TR |
| Unit Weight | - | 0.010935 oz | 0.010935 oz |