1. Preconditioning, class 2 only:
150 +0/-10 °C /1 hour, then keep for
24 ± 1 hour at room temp
2. Initial measure:
Spec: refer to initial spec C, D, IR
3. Endurance test:
Temperature: X7R: 125 °C
Specified stress voltage applied for 1,000 hours:
Applied 2.0 x Ur for general products*
Applied 1.5 x Ur for high cap. Products*
4. Recovery time: 24 ± 2 hours
5. Final measure: C, D, IR
P.S. If the capacitance value is less than the minimum
value permitted, then after the other measurements
have been made the capacitor shall be preconditioned
according to “IEC 60384 4.1” and then the
requirement shall be met.
* General product (Applied 2.0 x Ur):
0201 ≤ 10nF
0402 ≤ 100nF
0603 ≤ 470nF
0805, 1206, 1210 ≤ 1uF;
* High cap product (Applied 1.5 x Ur):
0201 > 10nF
0402 > 100nF
0603 > 470nF
0805, 1206, 1210 > 1uF;
<General Purpose series>
∆C/C
Class2:
X7R: ± 15%
D.F.
Class2:
X7R: ≤ 16V: ≤ 7%
≥ 25V: ≤ 5%
Rins
Class2:
X7R: ≥ 1,000 MΩ or Rins x Cr ≥ 50s
whichever is less
<High Capacitance series>
∆C/C
Class 2:
X7R: ± 20%
D.F.
Class 2:
X7R: 2 x initial value max
Rins
Class 2:
X7R: 1,000 MΩ or Rins x Cr ≥ 10s
whichever is less
Specified stress voltage applied for 1~5 seconds
Ur ≤ 100 V: series applied 2.5 Ur
Charge/Discharge current is less than 50 mA