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| PartNumber | BU941ZPFI | BU941ZP | BU941ZPF1 |
| Description | Darlington Transistors NPN Power Darlington | Darlington Transistors NPN Power Darlington | |
| Manufacturer | STMicroelectronics | STMicroelectronics | - |
| Product Category | Darlington Transistors | Darlington Transistors | - |
| RoHS | Y | Y | - |
| Configuration | Single | Single | - |
| Transistor Polarity | NPN | NPN | - |
| Collector Emitter Voltage VCEO Max | 350 V | 350 V | - |
| Emitter Base Voltage VEBO | 5 V | 5 V | - |
| Maximum DC Collector Current | 15 A | 15 A | - |
| Pd Power Dissipation | 65 W | 155 W | - |
| Mounting Style | Through Hole | Through Hole | - |
| Package / Case | TO-3PF | TO-247 | - |
| Maximum Operating Temperature | + 150 C | + 150 C | - |
| Series | BU941ZPFI | BU941Z | - |
| Qualification | AEC-Q101 | - | - |
| Height | 15.2 mm | 20.15 mm | - |
| Length | 15.7 mm | 15.75 mm | - |
| Width | 5.7 mm | 5.15 mm | - |
| Brand | STMicroelectronics | STMicroelectronics | - |
| Continuous Collector Current | 15 A | 15 A | - |
| DC Collector/Base Gain hfe Min | 300 | 300 | - |
| Product Type | Darlington Transistors | Darlington Transistors | - |
| Factory Pack Quantity | 300 | 30 | - |
| Subcategory | Transistors | Transistors | - |
| Unit Weight | 0.245577 oz | 0.229281 oz | - |
| Minimum Operating Temperature | - | - 65 C | - |
| Packaging | - | Tube | - |