Surface-Mount Ceramic Multilayer Capacitors
Resistance to
Soldering
Heat
Precondition: 150 +0/–10 °C for 1 hour, then
keep for 24 ± 1 hours at room temperature
Preheating: for size ≤ 1206: 120 °C to 150 °C for
1 minute
Preheating: for size >1206: 100 °C to 120 °C for
1 minute and 170 °C to 200 °C for 1 minute
Solder bath temperature: 260 ± 5 °C
Dipping time: 10 ± 0.5 seconds
Recovery time: 24 ±2 hours
Dissolution of the end face plating shall not
exceed 25% of the length of the edge
concerned
∆C/C
Class 1:
NP0: within ± 0.5% or 0.5 pF, whichever is greater
Class2:
X7R: ± 10%
D.F. within initial specified value
Rins within initial specified value
Preheated to a temperature of 80 °C to 140 °C
and maintained for 30 seconds to 60 seconds.
1. Temperature: 235± 5°C / Dipping time: 2 ± 0.5 s
2. Temperature: 245± 5°C / Dipping time: 3 ± 0.5 s
(lead free)Depth of immersion: 10mm
The solder should cover over 95% of the critical
area of each termination
Rapid Change
of
Temperature
Preconditioning;
150 +0/–10 °C for 1 hour, then keep for
24 ± 1 hours at room temperature
5 cycles with following detail:
30 minutes at lower category temperature
30 minutes at upper category temperature
Recovery time 24 ± 2 hours
∆C/C
Class 1:
NP0: within ± 1% or 1 pF, whichever is greater
Class2:
X7R: ± 15%
D.F. meet initial specified value
Rins meet initial specified value
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. Damp heat test:
500 ± 12 hours at 40 ±2 °C;
90 to 95% R.H.
4. Recovery:
Class 1: 6 to 24 hours
Class 2: 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.
No visual damage after recovery
∆C/C
Class 1:
NP0: within ± 2% or 1 pF, whichever is greater
Class2:
X7R: ± 15%
D.F.
Class 1:
NP0: ≤ 2 x specified value
Class2:
X7R: ≥ 25 V: ≤ 5%
Rins
Class 1:
NP0: ≥ 2,500 MΩ or Rins x Cr ≥ 25s whichever is
less
Class2:
X7R: ≥ 500 MΩ or Rins x Cr ≥ 25s whichever is
less