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| PartNumber | 1N5940B BK | 1N5940B | 1N5940B G |
| Description | Zener Diodes 43 Vz 53 Ohm 1 uA 32.7 Vr 34 mA 1.5W | Zener Diodes Zener Diodes | Zener Diodes Zener Voltage Regulator Diode |
| Manufacturer | Central Semiconductor | Microchip | Microchip |
| Product Category | Zener Diodes | Zener Diodes | Zener Diodes |
| RoHS | Y | N | N |
| Vz Zener Voltage | 43 V | 43 V | - |
| Mounting Style | Through Hole | Through Hole | - |
| Package / Case | DO-41 | DO-41-2 | - |
| Pd Power Dissipation | 1.5 W | 1.25 W | - |
| Voltage Tolerance | 5 % | 5 % | - |
| Voltage Temperature Coefficient | - | - | - |
| Zener Current | 1 uA | 34 mA | - |
| Zz Zener Impedance | 53 Ohms | 53 Ohms | - |
| Minimum Operating Temperature | - 65 C | - 65 C | - |
| Maximum Operating Temperature | + 200 C | + 175 C | - |
| Configuration | Single | Single | - |
| Test Current | 8.7 mA | 8.7 mA | - |
| Packaging | Bulk | Foil Bag | - |
| Diameter | 2.72 mm | 2.16 mm | - |
| Length | 5.21 mm | 4.06 mm | - |
| Brand | Central Semiconductor | Microchip / Microsemi | Microchip / Microsemi |
| Ir Reverse Current | 1 uA | 1 uA | - |
| Product Type | Zener Diodes | Zener Diodes | Zener Diodes |
| Factory Pack Quantity | 2000 | 1 | 1 |
| Subcategory | Diodes & Rectifiers | Diodes & Rectifiers | Diodes & Rectifiers |
| Vf Forward Voltage | 1.5 V | 1.2 V | - |
| Part # Aliases | 1N5940B BK PBFREE | - | - |
| Termination Style | - | Axial | - |