Calculate the reverse saturation current of a diode if the current at 0.2V forward bias is 0.1mA at a temperature of 25°C and the ideality factor is 1.5.
Calculate the reverse saturation current of a diode if the current at 0.2V forward bias is 0.1mA at a temperature of 25°C and the ideality factor is 1.5. Correct Answer 5.5x 10-7 A
Equation for diode current I=I0×(e(V/ηVT) – 1) where I0 = reverse saturation current η = ideality factor VT = thermal voltage V = applied voltage Here, I = 0.1mA, η = 1.5, V = 0.2V, VT = TK/11600 Therefore, VT at T = 25+273=298 is 298/11600 = 0.0256V. Therefore, reverse saturation current IO=0.00055mA = 5.5×10-7A.
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Feb 20, 2025