- Kondensatoren >
- Keramik-Vielschichtkondensatoren (MLCC)
A.
The most important function of the meter is applied voltage and measurement frequency.
Make sure the voltage and frequency ranges are sufficient for the settings listed in Table 1.
Be aware that the meter’s impedance can become a significant issue with high-capacitance MLCCs.
It may be necessary to choose a meter with a switchable internally impedance, if high-capacitance MLCCs are measured.
Some meters offer a level monitor function. This function can monitor the output level of OSC level or dc bias.
Measurement accuracy, speed, and capacitance range of the meter are also important. The measurement accuracy should be within 0.07% accuracy for capacitance measurement. Make sure the meter have the adequate time to measure the capacitor especially for some high speed measurement machines. Make sure the capacitor to be measured is within the capacitance range of the meter.
| Class Type | Capacitance | Frequency | Voltage |
|---|---|---|---|
| Class I | 1,000pF and under | 1MHz ± 10% | 0.5 ～ 5 Vrms |
| Over 1,000pF | 1kHz ± 10% | ||
| Class II | 10uF and under | 1kHz ± 10% | 1.0 ± 0.2 Vrms |
| Over 10uF | 120Hz ± 20% | 0.5 ± 0.2 Vrms |
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