Capacitor Temperature-Coefficient Drift
Estimate capacitance change from a linear ppm/°C coefficient and temperature difference. Many ceramic dielectric classes are nonlinear, so this model should only be used where a linear tempco is specified.
Description
Estimate capacitance change from a linear ppm/°C coefficient and temperature difference. Many ceramic dielectric classes are nonlinear, so this model should only be used where a linear tempco is specified.
Capacitor Temperature-Coefficient Drift: Estimate capacitance change from a linear ppm/°C coefficient and temperature difference. Many ceramic dielectric classes are nonlinear, so this model should only be used where a linear tempco is specified.
When to use Capacitor 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 capacitance (F)
- Required number input.
- Temperature coefficient (ppm/°C)
- Required number input.
- Temperature change (°C)
- Required number input.
How Capacitor Temperature-Coefficient Drift works
Estimate capacitance change from a linear ppm/°C coefficient and temperature difference. Many ceramic dielectric classes are nonlinear, so this model should only be used where a linear tempco is specified. 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 (F)
- The resulting change (f) returned as a number.
- New capacitance (F)
- The resulting new capacitance (f) returned as a number.
Limitations and assumptions
- Capacitance, ESR, leakage, ripple rating, lifetime, and self-resonance vary with frequency, temperature, DC bias, aging, dielectric, package, and mounting. Nominal capacitance alone does not determine in-circuit impedance or reliability.
- 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
-
Capacitor — Wikipedia contributors
Similar or alternative tools
- Resistor Temperature-Coefficient Drift
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- GaN HEMT Rds On Tempco
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