| PartNumber | BULK128D-B | BULK128 |
| Description | Bipolar Transistors - BJT High Voltage NPN 700V PWR Trans | Bipolar Transistors - BJT HI-VOLT FAST SWITCH NPN PWR TRANSISTR |
| Manufacturer | STMicroelectronics | STMicroelectronics |
| Product Category | Bipolar Transistors - BJT | Bipolar Transistors - BJT |
| RoHS | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT |
| Package / Case | SOT-82-3 | SOT-82-3 |
| Transistor Polarity | NPN | NPN |
| Configuration | Single | Single |
| Collector Emitter Voltage VCEO Max | 400 V | 400 V |
| Collector Base Voltage VCBO | 700 V | - |
| Emitter Base Voltage VEBO | 9 V | 9 V |
| Maximum DC Collector Current | 4 A | 4 A |
| Minimum Operating Temperature | - 65 C | - 65 C |
| Maximum Operating Temperature | + 150 C | + 150 C |
| Series | BULK128 | BULK128 |
| Height | 10.8 mm (Max) | 10.8 mm |
| Length | 7.8 mm (Max) | 7.8 mm |
| Packaging | Tube | Tube |
| Width | 2.7 mm (Max) | 2.7 mm |
| Brand | STMicroelectronics | STMicroelectronics |
| Pd Power Dissipation | 55000 mW | 55 W |
| Product Type | BJTs - Bipolar Transistors | BJTs - Bipolar Transistors |
| Factory Pack Quantity | 4000 | 50 |
| Subcategory | Transistors | Transistors |
| Unit Weight | 0.070548 oz | - |
| Continuous Collector Current | - | 4 A |