| Part Number | MMSZ5225B | MMSZ5228B | 
|---|---|---|
| Manufacturer | SMC Diode Solutions | Fairchild Semiconductor | 
| Category | Diodes - Zener - Single | Diodes - Zener - Single | 
|   |   | |
| Product Status | Active | Active | 
| Voltage - Zener (Nom) (Vz) | 3 V | 3.9 V | 
| Tolerance | ±5% | ±5% | 
| Power - Max | 500 mW | 500 mW | 
| Impedance (Max) (Zzt) | 30 Ohms | 24 Ohms | 
| Current - Reverse Leakage @ Vr | 50 µA @ 1 V | 10 µA @ 1 V | 
| Voltage - Forward (Vf) (Max) @ If | 900 mV @ 10 mA | 900 mV @ 10 mA | 
| Operating Temperature | -55°C ~ 150°C (TJ) | - | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | SOD-123 | SOD-123F | 
| Supplier Device Package | SOD-123 | SOD-123F |