| Part Number | 1N5256B | 1N5259B |
|---|---|---|
| Manufacturer | Fairchild Semiconductor | NTE Electronics, Inc |
| Category | Diodes - Zener - Single | Diodes - Zener - Single |
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| Product Status | Active | Active |
| Voltage - Zener (Nom) (Vz) | 30 V | 39 V |
| Tolerance | ±0.5% | ±0.5% |
| Power - Max | 500 mW | 500 mW |
| Impedance (Max) (Zzt) | 49 Ohms | 80 Ohms |
| Current - Reverse Leakage @ Vr | 100 nA @ 23 V | 100 nA @ 30 V |
| Voltage - Forward (Vf) (Max) @ If | 900 mV @ 200 mA | - |
| Operating Temperature | - | -65°C ~ 200°C |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | DO-204AH, DO-35, Axial | DO-204AH, DO-35, Axial |
| Supplier Device Package | - | - |