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| PartNumber | 1N5539B/TR | 1N5539B | 1N5539BUR-1 |
| Description | Zener Diodes Zener Diodes | Zener Diodes Zener Diodes | Zener Diodes Zener Diodes |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | Zener Diodes | Zener Diodes | Zener Diodes |
| RoHS | N | N | N |
| Vz Zener Voltage | 19 V | - | 19 V |
| Mounting Style | Through Hole | Through Hole | SMD/SMT |
| Package / Case | DO-204AH-2 | DO-35-2 | DO-213AA-2 |
| Pd Power Dissipation | 0.5 W | - | 0.5 W |
| Voltage Tolerance | 5 % | - | 5 % |
| Zener Current | 20 mA | - | 20 mA |
| Zz Zener Impedance | 100 Ohms | - | 100 Ohms |
| Minimum Operating Temperature | - 65 C | - | - 65 C |
| Maximum Operating Temperature | + 175 C | - | + 175 C |
| Configuration | Single | - | Single |
| Test Current | 1 mA | - | 1 mA |
| Packaging | Reel | Foil Bag | Foil Bag |
| Diameter | 2.29 mm | - | 1.7 mm |
| Length | 5.08 mm | - | 3.71 mm |
| Brand | Microchip / Microsemi | Microchip / Microsemi | Microchip / Microsemi |
| If Forward Current | 200 mA | - | - |
| Ir Reverse Current | 0.01 uA | - | 0.01 uA |
| Product Type | Zener Diodes | Zener Diodes | Zener Diodes |
| Factory Pack Quantity | 100 | 1 | 1 |
| Subcategory | Diodes & Rectifiers | Diodes & Rectifiers | Diodes & Rectifiers |
| Vf Forward Voltage | 1.1 V | - | 1.1 V |
| Unit Weight | - | 0.004833 oz | - |
| Voltage Regulation Accuracy | - | - | 0.2 V |