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| Part Number | MMSZ5251B | MMSZ5252B | MMSZ5254B | MMSZ5253B | MMSZ5251BS | MMSZ5250B |
|---|---|---|---|---|---|---|
| Manufacturer | Fairchild Semiconductor | Fairchild Semiconductor | Fairchild Semiconductor | Fairchild Semiconductor | Rectron USA | Fairchild Semiconductor |
| Product Status | Active | Active | Active | Active | Active | Obsolete |
| Voltage - Zener (Nom) (Vz) | 22 V | 24 V | 27 V | 25 V | 22 V | 20 V |
| Tolerance | ±5% | ±5% | ±5% | ±5% | ±5% | ±5% |
| Power - Max | 500 mW | 500 mW | 500 mW | 500 mW | 500 mW | 500 mW |
| Impedance (Max) (Zzt) | 19 Ohms | 33 Ohms | 25 Ohms | 35 Ohms | 19 Ohms | 17 Ohms |
| Current - Reverse Leakage @ Vr | 100 nA @ 17 V | 100 nA @ 18 V | - | 100 nA @ 19 V | - | 100 nA @ 15 V |
| Voltage - Forward (Vf) (Max) @ If | 900 mV @ 10 mA | 900 mV @ 10 mA | - | 900 mV @ 10 mA | - | 900 mV @ 10 mA |
| Operating Temperature | - | 150°C (TJ) | - | 150°C (TJ) | - | - |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | SOD-123F | SOD-123 | SOD-123 | SOD-123 | SC-76, SOD-323 | SOD-123F |
| Supplier Device Package | SOD-123F | SOD-123 | SOD-123 | SOD-123 | SOD-323 | SOD-123F |
