| Part Number | 1N5263B | 1N5262B | 
|---|---|---|
| Manufacturer | Fairchild Semiconductor | onsemi | 
| Category | Diodes - Zener - Single | Diodes - Zener - Single | 
|   |   | |
| Product Status | Active | Active | 
| Voltage - Zener (Nom) (Vz) | 56 V | 51 V | 
| Tolerance | ±0.5% | ±5% | 
| Power - Max | 500 mW | 500 mW | 
| Impedance (Max) (Zzt) | 150 Ohms | 125 Ohms | 
| Current - Reverse Leakage @ Vr | 100 nA @ 41 V | 100 nA @ 39 V | 
| Voltage - Forward (Vf) (Max) @ If | 900 mV @ 200 mA | - | 
| Operating Temperature | - | - | 
| Mounting Type | Through Hole | Through Hole | 
| Package / Case | DO-204AH, DO-35, Axial | DO-204AH, DO-35, Axial | 
| Supplier Device Package | - | DO-35 |