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| PartNumber | BZX79C18 A0G | BZX79C18 R0 | BZX79C18 |
| Description | Zener Diodes DO-35, 500mW, 5% Sm Signal Znr Diode | Zener Diodes Zener 500mW 18v | Zener Diodes 18V 0.5W Zener |
| Manufacturer | Taiwan Semiconductor | Taiwan Semiconductor | ON Semiconductor |
| Product Category | Zener Diodes | Zener Diodes | Zener Diodes |
| Vz Zener Voltage | 18 V | 18 V | 17.95 V |
| Mounting Style | Through Hole | Through Hole | Through Hole |
| Package / Case | DO-35-2 | DO-35-2 | DO-35-2 |
| Pd Power Dissipation | 500 mW | 500 mW | 500 mW |
| Voltage Tolerance | 5 % | 5 % | 5 % |
| Zener Current | 5 mA | 0.05 uA | 5 mA |
| Zz Zener Impedance | 45 Ohms | 45 Ohms | 45 Ohms |
| Minimum Operating Temperature | - 65 C | - 65 C | - 65 C |
| Maximum Operating Temperature | + 175 C | + 175 C | + 200 C |
| Configuration | Single | Single | Single |
| Test Current | 5 mA | 5 mA | 5 mA |
| Series | BZX79C18 | BZX79 | BZX79C18 |
| Brand | Taiwan Semiconductor | Taiwan Semiconductor | ON Semiconductor / Fairchild |
| If Forward Current | 100 mA | - | - |
| Ir Reverse Current | 0.05 uA | - | 50 nA |
| Product Type | Zener Diodes | Zener Diodes | Zener Diodes |
| Subcategory | Diodes & Rectifiers | Diodes & Rectifiers | Diodes & Rectifiers |
| Vf Forward Voltage | 1.5 V | 1.5 V | - |
| RoHS | - | Y | E |
| Packaging | - | Reel | Bulk |
| Diameter | - | 2.28 mm | - |
| Length | - | 5.08 mm | 4.56 mm |
| Factory Pack Quantity | - | 10000 | 1000 |
| Unit Weight | - | 0.003845 oz | 2.821917 oz |
| Voltage Temperature Coefficient | - | - | 14.2 mV/C |
| Height | - | - | 1.91 mm |
| Termination Style | - | - | Axial |
| Width | - | - | 1.91 mm |