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Which of the following diodes do not exhibits a constant reverse saturation current with the change in reverse saturation voltage.

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Which of the following diodes do not exhibits a constant reverse saturation current with the change in reverse saturation voltage.

(a) 1N909

(b) 1N405

(c) 1N207

(d) 1N676

The question was asked in an interview.

The query is from The Temperature Dependence of P-N Characteristics topic in portion Semiconductor-Diode Characteristics of Electronic Devices & Circuits

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Best answer
Correct choice is (c) 1N207

Best explanation: 1N207 is the germanium diode for which the reverse saturation current is not constant which the change in voltage due to the leakage in the surface of the diode and due to the generation of new current carriers.

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