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| PartNumber | 1N972B TR | 1N972B BK | 1N972B. |
| Description | Zener Diodes 30Vz 49 Ohm 5uA 22.8 Vr 10mA 500mW | Zener Diodes 30Vz 49 Ohm 5uA 22.8 Vr 10mA 500mW | |
| Manufacturer | Central Semiconductor | Central Semiconductor | - |
| Product Category | Zener Diodes | Zener Diodes | - |
| RoHS | Y | Y | - |
| Vz Zener Voltage | 30 V | 30 V | - |
| Mounting Style | Through Hole | Through Hole | - |
| Package / Case | DO-35 | DO-35 | - |
| Pd Power Dissipation | 500 mW | 500 mW | - |
| Voltage Tolerance | 5 % | 5 % | - |
| Voltage Temperature Coefficient | - | - | - |
| Zener Current | 5 uA | 5 uA | - |
| Zz Zener Impedance | 49 Ohms | 49 Ohms | - |
| Minimum Operating Temperature | - 65 C | - 65 C | - |
| Maximum Operating Temperature | + 200 C | + 200 C | - |
| Configuration | Single | Single | - |
| Test Current | 4.2 mA | 4.2 mA | - |
| Packaging | Reel | Bulk | - |
| Diameter | 2.29 mm | 2.29 mm | - |
| Length | 5.08 mm | 5.08 mm | - |
| Brand | Central Semiconductor | Central Semiconductor | - |
| Ir Reverse Current | 5 uA | 5 uA | - |
| Product Type | Zener Diodes | Zener Diodes | - |
| Factory Pack Quantity | 10000 | 2500 | - |
| Subcategory | Diodes & Rectifiers | Diodes & Rectifiers | - |
| Vf Forward Voltage | 1.5 V | 1.5 V | - |
| Part # Aliases | 1N972B PBFREE TR | 1N972B BK PBFREE | - |