Surface-Mount Ceramic Multilayer Capacitors
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 U
r
for general products
Applied 1.5 x U
r
for high cap. Products
High voltage series follows with below
stress condition:
Applied 1.5 x Ur for 200V, 250V series
Applied 1.3 x Ur for 500V, 630V series
Applied 1.2 x Ur for 1KV, 2KV, 3KV series
4. Recovery time: 24 ± 2 hours
5. Final measure: C, D, IR
Note: 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.
∆C/C
NP0: Within ± 2% or 1 pF,
whichever is greater
X7R: ± 15%
D.F.
NP0: ≤ 2 x specified value.
X7R: ≤ 16V: ≤ 7%
≥ 25V: ≤ 5%
IR
NP0: ≥ 4,000 MΩ or IR x C
r
≥
40s whichever is less
X7R: ≥ 1,000 MΩ or IRx C
r
≥
50s whichever is less
Any applicable method using × 10 magnification
In accordance with
specification
Verify physical dimensions to the applicable device
specification.
In accordance with
specification
Three shocks in each direction shall be applied along the three
mutually perpendicular axes of the test specimen (18 shocks)
Peak value: 1,500 g’s
Duration: 0.5 ms
Velocity change: 15.4 ft/s
Waveform: Half-sin
∆C/C
NP0: Within ± 0.5% or 0.5 pF,
whichever is greater
X7R: ± 10%
D.F.
Within initial specified value
IR
Within initial specified value
5 g’s for 20 minutes, 12 cycles each of 3 orientations.
Note:
Use 8” x 5” PCB. 0.31” thick 7 secure points on one long side
and 2 secure points at corners of opposite sides. Parts
mounted within 2” from any secure point. Test from
10-2000 Hz.
∆C/C
NP0: Within ± 0.5% or 0.5 pF,
whichever is greater
X7R: ± 10%
D.F: meet initial specified value
IR meet initial specified value
