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| PartNumber | BD159G | BD159 | BD159STU |
| Description | Bipolar Transistors - BJT 0.5A 350V 20W NPN | Bipolar Transistors - BJT 0.5A 350V 20W NPN | TRANS NPN 350V 0.5A TO-126 |
| Manufacturer | ON Semiconductor | ON Semiconductor | FAIRCHILD |
| Product Category | Bipolar Transistors - BJT | Bipolar Transistors - BJT | Transistors (BJT) - Single |
| RoHS | Y | N | - |
| Mounting Style | Through Hole | Through Hole | Through Hole |
| Package / Case | TO-225-3 | TO-225-3 | - |
| Transistor Polarity | NPN | NPN | NPN |
| Configuration | Single | Single | Single |
| Collector Emitter Voltage VCEO Max | 350 V | 350 V | - |
| Collector Base Voltage VCBO | 375 V | 375 V | - |
| Emitter Base Voltage VEBO | 5 V | 5 V | - |
| Maximum DC Collector Current | 0.5 A | 0.5 A | 0.5 A |
| Minimum Operating Temperature | - 65 C | - 65 C | - 65 C |
| Maximum Operating Temperature | + 150 C | + 150 C | + 50 C |
| Series | BD159 | - | - |
| Height | 11.1 mm | 11.04 mm (Max) | - |
| Length | 7.8 mm | 7.74 mm (Max) | - |
| Packaging | Bulk | Bulk | Tube |
| Width | 3 mm | 2.66 mm (Max) | - |
| Brand | ON Semiconductor | ON Semiconductor | - |
| Continuous Collector Current | 0.5 A | 0.5 A | 0.5 A |
| DC Collector/Base Gain hfe Min | 30 | 30 | - |
| Pd Power Dissipation | 20 W | 20 W | - |
| Product Type | BJTs - Bipolar Transistors | BJTs - Bipolar Transistors | - |
| Factory Pack Quantity | 500 | 500 | - |
| Subcategory | Transistors | Transistors | - |
| Unit Weight | 0.007478 oz | 0.068784 oz | 0.026843 oz |
| Package Case | - | - | TO-126 |
| Pd Power Dissipation | - | - | 20 W |
| Collector Emitter Voltage VCEO Max | - | - | 350 V |
| Collector Base Voltage VCBO | - | - | 375 V |
| Emitter Base Voltage VEBO | - | - | 5 V |
| DC Collector Base Gain hfe Min | - | - | 30 |
| DC Current Gain hFE Max | - | - | 240 |
