Using the curves of Fig. 48a, what level of temperature...

Using the curves of Fig. 48a, what level of temperature coefficient would you expect for a 20-V diode? Repeat for a 5-V diode. Assume a linear scale between nominal voltage levels and a current level of $0.1 \mathrm{~mA}$.

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Key Concepts

Temperature Coefficient

This concept refers to the rate at which a diode’s forward voltage changes in response to changes in temperature, typically expressed in units such as millivolts per degree Celsius. It is key in assessing how a diode's performance will vary across different thermal conditions.

Diode I-V Characteristics

Understanding the current-voltage (I-V) characteristics of a diode, which are typically non-linear, is essential for predicting its behavior under various operating conditions. These curves help in determining parameters like the temperature coefficient at specific bias points.

Linear Interpolation

This is a mathematical method used to estimate a value within two known values. In the context of diode temperature coefficients, it allows for approximating the rate at which the voltage changes with temperature between known nominal voltage levels.

Nominal Voltage Levels

These are the rated voltage values (e.g., 20-V and 5-V) provided for a diode, indicating its standard operating conditions. They serve as reference points for determining performance characteristics such as the temperature coefficient by comparing behaviors at different voltage ratings.

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