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Which of the following currents in a BJT is also called leakage current?(a) IC(b) IE(c) ICO(d) ICBOThe question was asked in an interview.The question is from BJT Construction and Operation in chapter BJT Biasing of Analog Circuits

Answer»

The correct choice is (a) IC

Best explanation: LEAKAGE current in BJT is represented by ICO, which is due to the flow of minority carriers in the TRANSISTOR. It consists of ICBO and ICEO. ICO depends on TEMPERATURE, doubling with 10° RISE in temperature. It thus effects total COLLECTOR current, IC, and hence affects the power dissipation.



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