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| Part Number | BZX79C11 | BZX79C12 | BZX79C51 | BZX79C13 | BZX79C18 | BZX79C16 | BZX79C15 | BZX79C10 | 
|---|---|---|---|---|---|---|---|---|
| Manufacturer | onsemi | onsemi | Fairchild Semiconductor | Fairchild Semiconductor | Fairchild Semiconductor | Fairchild Semiconductor | onsemi | onsemi | 
| Product Status | Active | Active | Active | Obsolete | Obsolete | Obsolete | Active | Active | 
| Voltage - Zener (Nom) (Vz) | 11 V | 12 V | 51 V | 13 V | 18 V | 16 V | 15 V | 10 V | 
| Tolerance | ±5% | ±5% | ±5% | ±5% | ±5% | ±5% | ±5% | ±5% | 
| Power - Max | 500 mW | 500 mW | 500 mW | 500 mW | 500 mW | 500 mW | 500 mW | 500 mW | 
| Impedance (Max) (Zzt) | 20 Ohms | 25 Ohms | 180 Ohms | 30 Ohms | 45 Ohms | 40 Ohms | 30 Ohms | 20 Ohms | 
| Current - Reverse Leakage @ Vr | 100 nA @ 8 V | 100 nA @ 8 V | 500 nA @ 35.7 V | 100 nA @ 8 V | 50 nA @ 12.6 V | 50 nA @ 11.2 V | 50 nA @ 10.5 V | 200 nA @ 7 V | 
| Voltage - Forward (Vf) (Max) @ If | 1.5 V @ 100 mA | 1.5 V @ 100 mA | 1.5 V @ 100 mA | 1.5 V @ 100 mA | 1.5 V @ 100 mA | 1.5 V @ 100 mA | 1.5 V @ 100 mA | 1.5 V @ 100 mA | 
| Operating Temperature | -65°C ~ 200°C | -65°C ~ 200°C | -65°C ~ 200°C | -65°C ~ 200°C | -65°C ~ 200°C | -65°C ~ 200°C | -65°C ~ 200°C | -65°C ~ 200°C | 
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | 
| Package / Case | DO-204AH, DO-35, Axial | DO-204AH, DO-35, Axial | DO-204AH, DO-35, Axial | DO-204AH, DO-35, Axial | DO-204AH, DO-35, Axial | DO-204AH, DO-35, Axial | DO-204AH, DO-35, Axial | DO-204AH, DO-35, Axial | 
| Supplier Device Package | DO-35 | DO-35 | DO-35 | DO-35 (DO-204AH) | DO-35 (DO-204AH) | DO-35 (DO-204AH) | DO-35 | DO-35 |