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See Product Specifications
| Part Number: | BU508AFI | 
| Category: | Discrete Semiconductor Products | 
| Subcategory: | Transistors - Bipolar (BJT) - Single | 
| Manufacturer: | STMicroelectronics | 
| Packaging: | Tube | 
| Product Status: | Obsolete | 
| Transistor Type: | NPN | 
| Current - Collector (Ic) (Max): | 8 A | 
| Voltage - Collector Emitter Breakdown (Max): | 700 V | 
| Vce Saturation (Max) @ Ib, Ic: | 1V @ 2A, 4.5A | 
| Current - Collector Cutoff (Max): | 1mA | 
| DC Current Gain (hFE) (Min) @ Ic, Vce: | - | 
| Power - Max: | 50 W | 
| Frequency - Transition: | 7MHz | 
| Operating Temperature: | 150°C (TJ) | 
| Mounting Type: | Through Hole | 
| Package / Case: | ISOWATT-218-3 | 
| Supplier Device Package: | ISOWATT-218FX |