BD643 series datasheets. Manufacturer: GESS.

BD643 8 A N-P-N darlington power transistor. 45 V. 70 W. Gain of 750 at 3 A. in 3-pin TO-220AB package. Operational temperature range from -55°C to 150°C. Datasheet*) BD645 8 A N-P-N darlington power transistor. 60 V. 70 W. Gain of 750 at 3 A. in 3-pin TO-220AB package. Operational temperature range from -55°C to 150°C. Datasheet*) BD647 8 A N-P-N darlington power transistor. 80 V. 70 W. Gain of 750 at 3 A. in 3-pin TO-220AB package. Operational temperature range from -55°C to 150°C. Datasheet*) BD649 8 A N-P-N darlington power transistor. 100 V. 70 W. Gain of 750 at 3 A. in 3-pin TO-220AB package. Operational temperature range from -55°C to 150°C. Datasheet*) There are other manufacturers for this components. For more information please check BD643 (Siemens)

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