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| PartNumber | 1N5278A | 1N5278A (DO-35) | 1N5278B |
| Description | Zener Diodes Zener Diodes | DIODE ZENER 170V 500MW DO35 | Zener Diodes Zener Voltage Regulator Diode |
| Manufacturer | Microchip | - | Microsemi |
| Product Category | Zener Diodes | - | Diodes - Zener - Single |
| Vz Zener Voltage | 170 V | - | - |
| Mounting Style | Through Hole | - | Through Hole |
| Package / Case | DO-7 | - | - |
| Pd Power Dissipation | 500 mW | - | - |
| Voltage Tolerance | 10 % | - | 5 % |
| Voltage Temperature Coefficient | 0.11 %/C | - | 0.11 %/C |
| Zener Current | 0.1 uA | - | 100 nA |
| Zz Zener Impedance | 1900 Ohms | - | - |
| Minimum Operating Temperature | - 65 C | - | - 65 C |
| Maximum Operating Temperature | + 200 C | - | + 175 C |
| Configuration | Single | - | Single |
| Test Current | 0.74 mA | - | - |
| Packaging | Foil Bag | - | - |
| Brand | Microchip / Microsemi | - | - |
| Product Type | Zener Diodes | - | - |
| Factory Pack Quantity | 1 | - | - |
| Subcategory | Diodes & Rectifiers | - | - |
| Vf Forward Voltage | 1.1 V | - | - |
| Part # Aliases | (DO-35) 1N5278A | - | - |
| Product | - | - | Zener Diodes |
| Part Aliases | - | - | (DO-35) |
| Unit Weight | - | - | 0.004833 oz |
| Package Case | - | - | DO-35 |
| Pd Power Dissipation | - | - | 500 mW |
| Vf Forward Voltage | - | - | 1.5 V at 200 mA |
| Vz Zener Voltage | - | - | 170 V |
| Zz Zener Impedance | - | - | 1.9 kOhms |
| Ir Reverse Current | - | - | 100 nA |