| Part Number | MMSZ5256B | MMSZ5253B |
|---|---|---|
| Manufacturer | Fairchild Semiconductor | Fairchild Semiconductor |
| Category | Diodes - Zener - Single | Diodes - Zener - Single |
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| Product Status | Active | Active |
| Voltage - Zener (Nom) (Vz) | 30 V | 25 V |
| Tolerance | ±5% | ±5% |
| Power - Max | 500 mW | 500 mW |
| Impedance (Max) (Zzt) | 49 Ohms | 35 Ohms |
| Current - Reverse Leakage @ Vr | 100 nA @ 23 V | 100 nA @ 19 V |
| Voltage - Forward (Vf) (Max) @ If | 900 mV @ 10 mA | 900 mV @ 10 mA |
| Operating Temperature | 150°C (TJ) | 150°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | SOD-123 | SOD-123 |
| Supplier Device Package | SOD-123 | SOD-123 |