■ Specifications and Test Methods
Item
Specification
Test Method (Ref. Standard:JIS C 5101, IEC60384)
No.
1
Rated Voltage
Shown in Rated value.
The rated voltage is defined as the maximum voltage which may be applied continuously to the capacitor.
When AC voltage is superimposed on DC voltage, VP-P or VO-P, whichever is larger, should be maintained
within the rated voltage range.
2
3
4
Appearance
Dimension
No defects or abnormalities.
Shown in Rated value.
Visual inspection.
Using Measuring instrument of dimension.
Voltage Proof
No defects or abnormalities.
Measurement Point :
Test Voltage :
Applied Time :
Between the terminations
300% of the rated voltage
1s to 5s
Charge/Discharge Current : 50mA max.
5
6
Insulation Resistance(I.R.)
More than 10000MΩ
Shown in Rated value.
Q≧1000
Measurement Temperature:Room Temperature
Measurement Point :
Measurement Voltage :
Charging Time :
Between the terminations
Rated Voltage
2min
Charge/Discharge Current : 50mA max.
Capacitance
Measurement Temperature:Room Temperature
Measurement Frequency : 1.0+/-0.1kHz
Measurement Voltage :
1.0+/-0.2Vrms
7
8
Q or Dissipation Factor (D.F.)
Measurement Temperature : Room Temperature
Measurement Frequency : 1.0+/-0.1kHz
Measurement Voltage :
1.0+/-0.2Vrms
Nominal value of the temperature coefficient is shown in Rated value.
Capacitance
Temperature
Characteristics
No bias
The capacitance change should be measured after 5 minutes at each specified temperature stage.
But, the Capacitance Change under Reference Temperature is shown in
Table A.
Capacitance value as a reference is the value in "*" marked step.
Capacitance Drift:Within +/-0.2% or +/-0.05pF (Whichever is larger)
The capacitance drift is calculated by dividing the differences between the maximum and minimum measured values in the step 1,3 and 5 by the capacitance
value in step 3.
Measurement Voltage :
Less than 1.0Vrms (Refer to the individual data sheet)
Step
1
Temperature(°C)
Reference Temp. +/-2
Applying Voltage
2
Min. Operating Temp. +/-3
Reference Temp. +/-2
Max. Operating Temp. ±3
Reference Temp. +/-2
No bias
3 *
4
5
GRM1857U1H302JA44-01A
MURATA [ muRata ]
