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| PartNumber | BD678 | BD678A | BD6780 |
| Description | Darlington Transistors DARLINGTON TRAN | Darlington Transistors PNP Power Darlington | |
| Manufacturer | STMicroelectronics | STMicroelectronics | - |
| Product Category | Darlington Transistors | Darlington Transistors | - |
| RoHS | Y | Y | - |
| Configuration | Single | Single | - |
| Transistor Polarity | PNP | PNP | - |
| Collector Emitter Voltage VCEO Max | 60 V | 60 V | - |
| Emitter Base Voltage VEBO | 5 V | 5 V | - |
| Collector Base Voltage VCBO | 60 V | 60 V | - |
| Maximum DC Collector Current | 4 A | 4 A | - |
| Maximum Collector Cut off Current | 200 uA | 200 uA | - |
| Pd Power Dissipation | 40 W | 40 W | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | SOT-32 | SOT-32 | - |
| Maximum Operating Temperature | + 150 C | + 150 C | - |
| Series | BD678 | BD678A | - |
| Height | 10.8 mm | 10.8 mm | - |
| Length | 7.8 mm | 7.8 mm | - |
| Width | 2.7 mm | 2.7 mm | - |
| Brand | STMicroelectronics | STMicroelectronics | - |
| DC Collector/Base Gain hfe Min | 750 | 750 | - |
| Product Type | Darlington Transistors | Darlington Transistors | - |
| Factory Pack Quantity | 2000 | 2000 | - |
| Subcategory | Transistors | Transistors | - |
| Unit Weight | 0.143988 oz | - | - |
| Continuous Collector Current | - | 4 A | - |