| Part Number | MM5Z56V | MM5Z51V | 
|---|---|---|
| Manufacturer | onsemi | Fairchild Semiconductor | 
| Category | Diodes - Zener - Single | Diodes - Zener - Single | 
|   |   | |
| Product Status | Active | Active | 
| Voltage - Zener (Nom) (Vz) | 56 V | 51 V | 
| Tolerance | ±7% | - | 
| Power - Max | 200 mW | 200 mW | 
| Impedance (Max) (Zzt) | 200 Ohms | 180 Ohms | 
| Current - Reverse Leakage @ Vr | 50 nA @ 39.2 V | 50 nA @ 35.7 V | 
| Voltage - Forward (Vf) (Max) @ If | - | - | 
| Operating Temperature | -55°C ~ 150°C | -55°C ~ 150°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | SC-79, SOD-523F | - | 
| Supplier Device Package | SOD-523F | - |