| Part Number | BZX85C11TR5K | BZX85C18TR5K | 
|---|---|---|
| Manufacturer | Fairchild Semiconductor | onsemi | 
| Category | Diodes - Zener - Single | Diodes - Zener - Single | 
|   |   | |
| Product Status | Active | Obsolete | 
| Voltage - Zener (Nom) (Vz) | - | 18 V | 
| Tolerance | - | ±5% | 
| Power - Max | - | 1 W | 
| Impedance (Max) (Zzt) | - | 20 Ohms | 
| Current - Reverse Leakage @ Vr | - | 500 nA @ 12.5 V | 
| Voltage - Forward (Vf) (Max) @ If | - | 1.2 V @ 200 mA | 
| Operating Temperature | - | -65°C ~ 200°C (TJ) | 
| Mounting Type | - | Through Hole | 
| Package / Case | - | DO-204AL, DO-41, Axial | 
| Supplier Device Package | - | DO-41 |