Nemco Electronics Performance Info - Manual (Page 5)

General Performance Information
z Frequency Dependence of
Impedance and ESR
ESR and impedance decrease with increasing
frequency. At lower frequencies the extra
contribution to impedance due to the
reactance of the capacitor becomes more
significant. Beyond the resonant point of the
capacitor, impedance again increases due to
the inductance of the capacitor.
Typical response curve to frequency.
Frequency (Hz)
z Temperature Dependence of
Impedance and ESR
At 100KHz, impedance and ESR behave
identically. Impedance and ESR decrease
with increasing temperature. The amount of
change is influenced by the size of the
capacitor and is generally more pronounced
on smaller ratings.
Typical effect of temperature on 100KHz ESR
can be seen by applying a multiplier to
100kHz ESR.
Temperature (°C)
Multiplier of 100kHz ESR
ESR, Impedance (
Ω
)
Temperature Dependance of the Impedance and ESR
Temperature °C
ESR, Impedance
Z (
Ω)