Resistor Temperature-Coefficient Drift
Estimate resistor value change from a specified linear ppm/°C temperature coefficient and temperature difference. This is a first-order drift estimate; self-heating and nonlinearity are not included.
Description
Estimate resistor value change from a specified linear ppm/°C temperature coefficient and temperature difference. This is a first-order drift estimate; self-heating and nonlinearity are not included.
Resistor Temperature-Coefficient Drift: Estimate resistor value change from a specified linear ppm/°C temperature coefficient and temperature difference. This is a first-order drift estimate; self-heating and nonlinearity are not included.
When to use Resistor Temperature-Coefficient Drift
Use this electronics calculation for a first-pass component, converter, signal, motor, or sensor estimate when the stated operating conditions and units match the device data.
- Reference resistance (Ω)
- Required number input.
- Temperature coefficient (ppm/°C)
- Required number input.
- Temperature change (°C)
- Required number input.
How Resistor Temperature-Coefficient Drift works
Estimate resistor value change from a specified linear ppm/°C temperature coefficient and temperature difference. This is a first-order drift estimate; self-heating and nonlinearity are not included. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.1
- Change (Ω)
- The resulting change (ω) returned as a number.
- New resistance (Ω)
- The resulting new resistance (ω) returned as a number.
Limitations and assumptions
- Resistor value, power, noise, and color-code calculations must account for tolerance, temperature coefficient, voltage coefficient, pulse rating, working voltage, package thermal resistance, ambient temperature, and mounting. Required steady-state power should include the manufacturer's derating curve.
- Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.
Alternative or Complementary approaches
Check the result against the current datasheet and worst-case operating corners, then verify the circuit or measurement with simulation and bench testing where failure matters.
References
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Resistor — Wikipedia contributors
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