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| PartNumber | JAN1N978BUR-1 | JAN1N978B | JAN1N978B-1 |
| Description | Zener Diodes Zener Diodes | Zener Diodes Zener Voltage Regulator Diode | |
| Manufacturer | Microchip | - | Microsemi HI-REL [MIL] |
| Product Category | Zener Diodes | - | Diodes - Zener - Single |
| RoHS | N | - | - |
| Packaging | Foil Bag | - | Bulk |
| Brand | Microchip / Microsemi | - | - |
| Product Type | Zener Diodes | - | - |
| Factory Pack Quantity | 1 | - | - |
| Subcategory | Diodes & Rectifiers | - | - |
| Series | - | - | - |
| Unit Weight | - | - | 0.004586 oz |
| Mounting Style | - | - | Through Hole |
| Length | - | - | 4.44 mm |
| Package Case | - | - | DO-204AH, DO-35, Axial |
| Operating Temperature | - | - | -65°C ~ 175°C |
| Mounting Type | - | - | Through Hole |
| Supplier Device Package | - | - | DO-35 |
| Tolerance | - | - | ±5% |
| Power Max | - | - | 500mW |
| Voltage Zener Nom Vz | - | - | 51V |
| Impedance Max Zzt | - | - | 125 Ohm |
| Current Reverse Leakage Vr | - | - | 5μA @ 38.8V |
| Voltage Forward Vf Max If | - | - | 1.1V @ 200mA |
| Diameter | - | - | 2.03 mm |