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| PartNumber | 1N5256BTR | 1N5256BTR_NL |
| Description | DIODE ZENER 30V 500MW DO35 | |
| Manufacturer | Fairchild Semiconductor | - |
| Product Category | Diodes - Zener - Single | - |
| Series | - | - |
| Packaging | Cut Tape (CT) Alternate Packaging | - |
| Part Aliases | 1N5256BTR_NL | - |
| Unit Weight | 0.004445 oz | - |
| Mounting Style | Through Hole | - |
| Height | 1.91 mm | - |
| Length | 4.56 mm | - |
| Width | 1.91 mm | - |
| Package Case | DO-204AH, DO-35, Axial | - |
| Operating Temperature | -65°C ~ 200°C | - |
| Mounting Type | Through Hole | - |
| Supplier Device Package | DO-35 | - |
| Configuration | Single | - |
| Tolerance | ±5% | - |
| Power Max | 500mW | - |
| Voltage Zener Nom Vz | 30V | - |
| Impedance Max Zzt | 49 Ohm | - |
| Current Reverse Leakage Vr | 100nA @ 23V | - |
| Voltage Forward Vf Max If | 1.2V @ 200mA | - |
| Pd Power Dissipation | 500 mW | - |
| Maximum Operating Temperature | + 200 C | - |
| Minimum Operating Temperature | - 65 C | - |
| Vz Zener Voltage | 30 V | - |
| Voltage Tolerance | 5 % | - |
| Voltage Temperature Coefficient | 0.09 %/C | - |
| Zener Current | 4.2 mA | - |
| Zz Zener Impedance | 49 Ohms | - |
| Ir Reverse Current | 100 nA | - |