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| Part Number | MMBZ5257B | MMBZ5258B | MMBZ5257BW | MMBZ5259B | MMBZ5254B | MMBZ5255B | MMBZ5256B |
|---|---|---|---|---|---|---|---|
| Manufacturer | onsemi | Rectron USA | Rectron USA | Rectron USA | Fairchild Semiconductor | Fairchild Semiconductor | Fairchild Semiconductor |
| Product Status | Active | Active | Active | Active | Active | Active | Active |
| Voltage - Zener (Nom) (Vz) | 33 V | 36 V | 33 V | 39 V | 27 V | 28 V | 30 V |
| Tolerance | ±5% | ±5% | ±5% | ±5% | ±5% | ±5% | ±5% |
| Power - Max | 300 mW | 300 mW | 200 mW | 300 mW | 225 mW | 225 mW | 225 mW |
| Impedance (Max) (Zzt) | 58 Ohms | 70 Ohms | 58 Ohms | 80 Ohms | 41 Ohms | 44 Ohms | 49 Ohms |
| Current - Reverse Leakage @ Vr | 100 nA @ 25 V | 100 nA @ 27 V | 100 nA @ 25 V | 100 nA @ 30 V | 100 nA @ 21 V | 100 nA @ 21 V | 100 nA @ 23 V |
| Voltage - Forward (Vf) (Max) @ If | 900 mV @ 10 mA | 900 mV @ 10 mA | 900 mV @ 10 mA | 900 mV @ 10 mA | 900 mV @ 10 mA | 900 mV @ 10 mA | 900 mV @ 10 mA |
| Operating Temperature | - | - | - | - | -65°C ~ 150°C (TJ) | -65°C ~ 150°C (TJ) | -65°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | TO-236-3, SC-59, SOT-23-3 | TO-236-3, SC-59, SOT-23-3 | SC-70, SOT-323 | TO-236-3, SC-59, SOT-23-3 | TO-236-3, SC-59, SOT-23-3 | TO-236-3, SC-59, SOT-23-3 | TO-236-3, SC-59, SOT-23-3 |
| Supplier Device Package | SOT-23 | SOT-23 | SOT-323 | SOT-23 | SOT-23-3 | SOT-23-3 | SOT-23-3 |
