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BUL43B Datasheet

Part Name Description Manufacturer
BUL43B SWITCHMODE NPN Silicon Planar Power Transistor Motorola
Motorola => Freescale Motorola
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The BUL43B has an application specific state–of–the–art die designed for use in 220 V line operated Switchmode Power supplies and electronic ballast (“light ballast”). The main advantages brought by this new transistor are:

• Improved Efficiency Due to Low Base Drive Requirements:
    — High and Flat DC Current Gain hFE
    — Fast and Tightened Switching Distributions
    — No Coil Required in Base Circuit for Fast Turn–Off (no current tail)


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