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BU508DF 数据表(PDF) 5 Page - NXP Semiconductors |
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BU508DF 数据表(HTML) 5 Page - NXP Semiconductors |
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5 / 7 page ![]() Philips Semiconductors Product specification Silicon Diffused Power Transistor BU508DF Fig.9. Transient thermal impedance. Z th j-hs = f(t); parameter D = tp/T Fig.10. Forward bias safe operating area. T hs = 25˚C I Region of permissible DC operation. II Extension for repetitive pulse operation. NB: Mounted with heatsink compound and 30 ± 5 newton force on the centre of the envelope. Fig.11. Forward bias safe operating area. T hs = 25˚C I Region of permissible DC operation. II Extension for repetitive pulse operation. NB: Mounted without heatsink compound and 30 ± 5 newton force on the centre of the envelope. 1.0E-07 1.0E-05 1E-03 1.0E-01 1.0E+1 0.001 0.01 0.1 1 10 0 0.2 0.1 0.05 0.02 0.5 bu508ax t / s Zth K/W D = tp tp T T P t D 1 10 100 1000 100 10 1 0.1 0.01 tp = 10 us 100 us 1 ms 10 ms DC IC / A VCE / V ICM max IC max = 0.01 II I Ptot max 1 10 100 1000 100 10 1 0.1 0.01 tp = 10 us 100 us 1 ms 10 ms DC IC / A VCE / V ICM max IC max = 0.01 II I Ptot max July 1998 5 Rev 1.200 |
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