| Part Number | MMBZ5223B | MMBZ5221B | 
|---|---|---|
| Manufacturer | Fairchild Semiconductor | Fairchild Semiconductor | 
| Category | Diodes - Zener - Single | Diodes - Zener - Single | 
|   |   | |
| Product Status | Active | Obsolete | 
| Voltage - Zener (Nom) (Vz) | 2.7 V | 2.4 V | 
| Tolerance | ±5% | ±5% | 
| Power - Max | 300 mW | 350 mW | 
| Impedance (Max) (Zzt) | 30 Ohms | 30 Ohms | 
| Current - Reverse Leakage @ Vr | 75 µA @ 1 V | 100 µA @ 1 V | 
| Voltage - Forward (Vf) (Max) @ If | 900 mV @ 10 mA | 900 mV @ 10 mA | 
| Operating Temperature | - | -55°C ~ 150°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | TO-236-3, SC-59, SOT-23-3 | TO-236-3, SC-59, SOT-23-3 | 
| Supplier Device Package | SOT-23 | SOT-23-3 |