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How to compute value at temperature in Python using UliEngineering

You can easily compute the value of a component at a specific temperature using the UliEngineering Python library:

value_at_temperature.py
from UliEngineering.Electronics.Temperature import value_at_temperature
from UliEngineering.EngineerIO import *

# Compute value at 50°C for 10k resistor with 100ppm/°C
value = value_at_temperature("10k", "100ppm/°C", 50.0)
print(f"Value at 50°C (10k, 100ppm/°C): {format_value(value, 'Ω')}")

# Compute value at -20°C for 1µF capacitor with 200ppm/°C
value = value_at_temperature("1uF", "200ppm/°C", -20.0)
print(f"Value at -20°C (1µF, 200ppm/°C): {format_value(value, 'F')}")

Example output

value_at_temperature_output.txt
Value at 50°C (10k, 100ppm/°C): 10.5 kΩ
Value at -20°C (1µF, 200ppm/°C): 996 nF

This calculation determines the actual value of a component at a specific operating temperature based on its temperature coefficient. This is essential for precision circuit design where component values must be accurate under specific environmental conditions, accounting for the predictable variation with temperature.

The value is computed using the formula: $V = V_0 \times (1 + \text{ppm} \times 10^{-6} \times \Delta T)$, where $V_0$ is the nominal value at the reference temperature (typically 25°C), ppm is the temperature coefficient in parts per million per degree Celsius, and $\Delta T$ is the temperature difference from the reference temperature.

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