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| PartNumber | 1N979B | 1N979Be3 | 1N979B/TR |
| 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 | Y | N |
| Packaging | Bulk | Bulk | Reel |
| Brand | Microchip / Microsemi | Microchip / Microsemi | Microchip / Microsemi |
| Product Type | Zener Diodes | Zener Diodes | Zener Diodes |
| Factory Pack Quantity | 1 | 1 | 100 |
| Subcategory | Diodes & Rectifiers | Diodes & Rectifiers | Diodes & Rectifiers |
| Vz Zener Voltage | - | 56 V | 56 V |
| Mounting Style | - | Through Hole | Through Hole |
| Package / Case | - | DO-204AH-2 | DO-204AH-2 |
| Pd Power Dissipation | - | 0.5 W | 0.5 W |
| Voltage Tolerance | - | 5 % | 5 % |
| Voltage Temperature Coefficient | - | 0.096 %/C | 0.096 %/C |
| Zener Current | - | 6.9 mA | 6.9 mA |
| Zz Zener Impedance | - | 150 Ohms | 150 Ohms |
| Minimum Operating Temperature | - | - 65 C | - 65 C |
| Maximum Operating Temperature | - | + 175 C | + 175 C |
| Configuration | - | Single | Single |
| Test Current | - | 2.2 mA | 2.2 mA |
| Diameter | - | 2.29 mm | 2.29 mm |
| Length | - | 5.08 mm | 5.08 mm |
| If Forward Current | - | 200 mA | 200 mA |
| Ir Reverse Current | - | 0.5 uA | 0.5 uA |
| Vf Forward Voltage | - | 1.1 V | 1.1 V |