| Part Number | BZX84C16 | BZX84C18 | 
|---|---|---|
| Manufacturer | Fairchild Semiconductor | Fairchild Semiconductor | 
| Category | Diodes - Zener - Single | Diodes - Zener - Single | 
|   |   | |
| Product Status | Active | Obsolete | 
| Voltage - Zener (Nom) (Vz) | 16 V | 18 V | 
| Tolerance | ±5% | ±5% | 
| Power - Max | 250 mW | 300 mW | 
| Impedance (Max) (Zzt) | 40 Ohms | 45 Ohms | 
| Current - Reverse Leakage @ Vr | 50 nA @ 11.2 V | 50 nA @ 12.6 V | 
| Voltage - Forward (Vf) (Max) @ If | 900 mV @ 10 mA | - | 
| Operating Temperature | -55°C ~ 150°C (TJ) | -50°C ~ 150°C (TJ) | 
| 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-23-3 | SOT23-3 (TO-236) |