Q.
How to measure capacitors/Test a Capacitors (9): How do I calculate the insulation resistance and CR product?
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- Multilayer Ceramic Chip Capacitors
Table 1
Therefore, IR Limit = 1,000MΩ
A. There are two limits for insulation resistance depending on the component’s rated voltage (see Table 1).
Rated Voltage | IR Limit Formula |
---|---|
25V~50V | 10,000MΩ or 500MΩ uF; Whichever smaller. |
6.3V~16V | 10,000MΩ or 100MΩ uF; Whichever smaller. |
Example:
Rated Voltage : 16V
Nominal Capacitance : 100,000pF (or 0.1 uF)
IR Limit = min[10,000MΩ or 100MΩ uF/0.1uF]
= min[10,000MΩ or 1,000MΩ]
Therefore, IR Limit = 1,000MΩ
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