 |  |  | |
| PartNumber | 1N4478/TR | 1N4478 | 1N4478 BK |
| Description | Zener Diodes Zener Diodes | Zener Diodes Z MET 36V | Zener Diodes 36Vz 27 Zzt Ohm 28.8 Vr 40 mA 1.5pD |
| Manufacturer | Microchip | Semtech | Central Semiconductor |
| Product Category | Zener Diodes | Zener Diodes | Zener Diodes |
| RoHS | N | N | Y |
| Vz Zener Voltage | 36 V | 36 V | 36 V |
| Mounting Style | Through Hole | Through Hole | Through Hole |
| Package / Case | DO-41-2 | DO-41-2 | DO-41 |
| Pd Power Dissipation | 1.5 W | 1.5 W | 1.5 W |
| Voltage Tolerance | 5 % | - | 5 % |
| Zener Current | 40 mA | 50 nA | 0.05 uA |
| Zz Zener Impedance | 27 Ohms | 27 Ohms | 27 Ohms |
| Minimum Operating Temperature | - 65 C | - 55 C | - 65 C |
| Maximum Operating Temperature | + 175 C | + 175 C | + 200 C |
| Configuration | Single | Single | Single |
| Test Current | 7 mA | - | 7 mA |
| Packaging | Reel | - | Bulk |
| Diameter | 2.16 mm | 2.16 mm | 2.72 mm |
| Length | 4.06 mm | 4.06 mm | 5.21 mm |
| Brand | Microchip / Microsemi | Semtech | Central Semiconductor |
| If Forward Current | 200 mA | - | - |
| Ir Reverse Current | 0.05 uA | 50 nA | 0.05 uA |
| Product Type | Zener Diodes | Zener Diodes | Zener Diodes |
| Factory Pack Quantity | 100 | 1 | 2000 |
| Subcategory | Diodes & Rectifiers | Diodes & Rectifiers | Diodes & Rectifiers |
| Vf Forward Voltage | 1 V | - | - |
| Voltage Temperature Coefficient | - | 0.093 %/C | - |
| Series | - | 1N447 | - |
| Voltage Regulation Accuracy | - | 1.7 V | - |
| Part # Aliases | - | - | 1N4478 BK PBFREE |
| Unit Weight | - | - | 0.010935 oz |