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| PartNumber | 1N4688 TR | 1N4688 | 1N4688 BK |
| Description | Zener Diodes Zener 4.465 to 4.935 500mW Pd Low Noise | Zener Diodes Zener Diodes | Zener Diodes 4.7Vz 10 uA 3Vr 60 mA 500mW |
| Manufacturer | Central Semiconductor | Microchip | Central Semiconductor |
| Product Category | Zener Diodes | Zener Diodes | Zener Diodes |
| RoHS | Y | N | Y |
| Package / Case | DO-35 | DO-35-2 | DO-35 |
| Packaging | Reel | Bulk | Bulk |
| Series | 1N4688 | - | 1N4682 |
| Brand | Central Semiconductor | Microchip / Microsemi | Central Semiconductor |
| Product Type | Zener Diodes | Zener Diodes | Zener Diodes |
| Factory Pack Quantity | 10000 | 1 | 2500 |
| Subcategory | Diodes & Rectifiers | Diodes & Rectifiers | Diodes & Rectifiers |
| Part # Aliases | 1N4688 PBFREE TR | - | 1N4688 BK PBFREE |
| Vz Zener Voltage | - | 4.7 V | 4.7 V |
| Mounting Style | - | Through Hole | Through Hole |
| Pd Power Dissipation | - | 500 mW | 500 mW |
| Voltage Tolerance | - | 5 % | 5 % |
| Zener Current | - | 60 mA | 10 uA |
| Minimum Operating Temperature | - | - 65 C | - 65 C |
| Maximum Operating Temperature | - | + 175 C | + 200 C |
| Configuration | - | Single | Single |
| Test Current | - | 50 uA | 50 uA |
| Diameter | - | 1.93 mm | 2.29 mm |
| Length | - | 4.32 mm | 5.08 mm |
| Voltage Regulation Accuracy | - | 0.99 V | - |
| Ir Reverse Current | - | 10 uA | 10 uA |
| Vf Forward Voltage | - | 1.1 V | 1.5 V |
| Voltage Temperature Coefficient | - | - | - |
| Zz Zener Impedance | - | - | - |